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Climate and Average Weather Year Round in Greater Sudbury Ontario, Canada

In Greater Sudbury, the summers are comfortable and partly cloudy and the winters are freezing, snowy, and mostly cloudy. Over the course of the year, the temperature typically varies from 2°F to 77°F and is rarely below -18°F or above 85°F.

Based on the tourism score, the best time of year to visit Greater Sudbury for warm-weather activities is from late June to late August.

Climate in Greater Sudbury

freezingcoldcoolwarmcoolcoldfreezingJanFebMarAprMayJunJulAugSepOctNovDecNowNow64%64%27%27%overcastclearprecipitation: 2.9 inprecipitation: 2.9 in1.0 in1.0 inmuggy: 9%muggy: 9%0%0%drydrytourism score: 6.7tourism score: 6.70.00.0
Greater Sudbury weather by month. Click on each chart for more information.

The warm season lasts for 3.7 months, from May 23 to September 15, with an average daily high temperature above 65°F. The hottest month of the year in Greater Sudbury is July, with an average high of 77°F and low of 58°F.

The cold season lasts for 3.3 months, from December 1 to March 10, with an average daily high temperature below 30°F. The coldest month of the year in Greater Sudbury is January, with an average low of 3°F and high of 19°F.

Average High and Low Temperature in Greater Sudbury

Average High and Low Temperature in Greater SudburywarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec-20°F-20°F-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2819°FJan 2819°FJul 1877°FJul 1877°F2°F2°F59°F59°FMay 2365°FMay 2365°FSep 1565°FSep 1565°FDec 130°FDec 130°FMar 1030°FMar 1030°F46°F46°F49°F49°F18°F18°F13°F13°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 19°F23°F34°F49°F63°F72°F77°F74°F65°F51°F37°F25°F
Temp. 10°F13°F24°F39°F53°F62°F67°F65°F56°F44°F32°F18°F
Low 3°F6°F17°F31°F44°F53°F58°F57°F49°F38°F26°F12°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Greater Sudbury

Average Hourly Temperature in Greater SudburyJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowfrigidfreezingfreezingvery coldcoldcoldcoolcomfortablevery coldwarmfrigidfrigidfreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Ulyanovsk, Russia (4,874 miles away) is the far-away foreign place with temperatures most similar to Greater Sudbury (view comparison).

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© OpenStreetMap contributors

Compare Greater Sudbury to another city:

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In Greater Sudbury, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Greater Sudbury begins around May 24 and lasts for 4.8 months, ending around October 17.

The clearest month of the year in Greater Sudbury is August, during which on average the sky is clear, mostly clear, or partly cloudy 63% of the time.

The cloudier part of the year begins around October 17 and lasts for 7.2 months, ending around May 24.

The cloudiest month of the year in Greater Sudbury is January, during which on average the sky is overcast or mostly cloudy 72% of the time.

Cloud Cover Categories in Greater Sudbury

Cloud Cover Categories in Greater SudburyclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 864%Aug 864%Jan 327%Jan 327%May 2446%May 2446%Oct 1746%Oct 1746%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 72%71%65%58%54%47%39%37%43%54%63%70%
Clearer 28%29%35%42%46%53%61%63%57%46%37%30%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Greater Sudbury varies throughout the year.

The wetter season lasts 8.0 months, from April 11 to December 11, with a greater than 24% chance of a given day being a wet day. The month with the most wet days in Greater Sudbury is September, with an average of 9.0 days with at least 0.04 inches of precipitation.

The drier season lasts 4.0 months, from December 11 to April 11. The month with the fewest wet days in Greater Sudbury is February, with an average of 4.8 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Greater Sudbury changes throughout the year.

Rain alone is the most common for 8.5 months, from March 15 to November 29. The month with the most days of rain alone in Greater Sudbury is September, with an average of 9.0 days.

Snow alone is the most common for 3.5 months, from November 29 to March 15. The month with the most days of snow alone in Greater Sudbury is January, with an average of 4.3 days.

Daily Chance of Precipitation in Greater Sudbury

Daily Chance of Precipitation in Greater SudburysnowrainsnowJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Oct 332%Oct 332%Feb 1315%Feb 1315%Nov 2924%Nov 2924%Apr 1124%Apr 1124%NowNowsnowrainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 0.5d0.7d2.6d5.4d8.2d8.9d8.8d8.3d9.0d8.6d4.5d1.7d
Mixed 1.1d0.8d1.1d0.8d0.2d0.0d0.0d0.0d0.0d0.4d1.1d1.3d
Snow 4.3d3.2d2.6d0.7d0.0d0.0d0.0d0.0d0.0d0.2d1.9d4.0d
Any 5.9d4.8d6.3d7.0d8.4d8.9d8.8d8.3d9.0d9.2d7.5d7.1d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Greater Sudbury experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.7 months, from March 3 to December 24, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Greater Sudbury is September, with an average rainfall of 2.8 inches.

The rainless period of the year lasts for 2.3 months, from December 24 to March 3. The month with the least rain in Greater Sudbury is February, with an average rainfall of 0.3 inches.

Average Monthly Rainfall in Greater Sudbury

Average Monthly Rainfall in Greater SudburyrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 inSep 222.9 inSep 222.9 inFeb 60.2 inFeb 60.2 inJun 102.5 inJun 102.5 inJul 232.2 inJul 232.2 inDec 240.5 inDec 240.5 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 0.3″0.3″0.8″1.6″2.2″2.5″2.2″2.4″2.8″2.5″1.4″0.6″

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Greater Sudbury experiences significant seasonal variation in monthly snowfall.

The snowy period of the year lasts for 6.4 months, from October 18 to April 30, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Greater Sudbury is January, with an average snowfall of 8.4 inches.

The snowless period of the year lasts for 5.6 months, from April 30 to October 18. The least snow falls around July 20, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Greater Sudbury

The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 8.4″8.1″6.2″2.4″0.2″0.0″0.0″0.0″0.0″0.8″4.6″8.3″

The length of the day in Greater Sudbury varies significantly over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 35 minutes of daylight; the longest day is June 20, with 15 hours, 49 minutes of daylight.

Hours of Daylight and Twilight in Greater Sudbury

Hours of Daylight and Twilight in Greater SudburyJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 1912 hr, 8 minMar 1915 hr, 49 minJun 2015 hr, 49 minJun 2012 hr, 12 minSep 2212 hr, 12 minSep 228 hr, 35 minDec 218 hr, 35 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 9.1h10.4h12.0h13.6h15.0h15.8h15.4h14.1h12.5h10.9h9.4h8.6h

The earliest sunrise is at 5:30 AM on June 15, and the latest sunrise is 2 hours, 37 minutes later at 8:07 AM on November 2. The earliest sunset is at 4:36 PM on December 10, and the latest sunset is 4 hours, 44 minutes later at 9:21 PM on June 25.

Daylight saving time (DST) is observed in Greater Sudbury during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

Sunrise & Sunset with Twilight and Daylight Saving Time in Greater Sudbury

Sunrise & Sunset with Twilight and Daylight Saving Time in Greater SudburyJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 155:30 AMJun 155:30 AM9:21 PMJun 259:21 PMJun 25Dec 104:36 PMDec 104:36 PM8:07 AMNov 28:07 AMNov 2Mar 10DSTMar 10DSTDSTNov 3DSTNov 3daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Greater Sudbury

Solar Elevation and Azimuth in Greater SudburyJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM0001010101020202030303040405060000101010202020203030404050506067NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Greater Sudbury

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Greater Sudbury, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 4% of 4% throughout.

Humidity Comfort Levels in Greater Sudbury

Humidity Comfort Levels in Greater SudburyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 200%Jan 200%Jul 199%Jul 199%NowNowhumidhumidcomfortablecomfortabledrydrymuggymuggy
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d0.1d1.0d2.5d2.1d0.7d0.0d0.0d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Greater Sudbury experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.6 months, from December 14 to May 2, with average wind speeds of more than 6.0 miles per hour. The windiest month of the year in Greater Sudbury is March, with an average hourly wind speed of 7.1 miles per hour.

The calmer time of year lasts for 7.4 months, from May 2 to December 14. The calmest month of the year in Greater Sudbury is July, with an average hourly wind speed of 4.9 miles per hour.

Average Wind Speed in Greater Sudbury

Average Wind Speed in Greater SudburywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mph11 mph11 mphFeb 277.3 mphFeb 277.3 mphJul 294.8 mphJul 294.8 mphDec 146.0 mphDec 146.0 mphMay 26.0 mphMay 26.0 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 6.67.17.16.65.65.14.95.05.45.75.96.1

The predominant average hourly wind direction in Greater Sudbury varies throughout the year.

The wind is most often from the south for 2.7 weeks, from June 6 to June 25 and for 3.5 months, from August 14 to November 28, with a peak percentage of 36% on September 15. The wind is most often from the west for 1.6 months, from June 25 to August 14, with a peak percentage of 37% on July 19. The wind is most often from the north for 6.3 months, from November 28 to June 6, with a peak percentage of 36% on January 1.

Wind Direction in Greater Sudbury

Wind Direction in Greater SudburyNSWSNJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Greater Sudbury is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.5 months, from July 8 to September 24, with an average temperature above 60°F. The month of the year in Greater Sudbury with the warmest water is August, with an average temperature of 67°F.

The time of year with cooler water lasts for 4.9 months, from December 10 to May 8, with an average temperature below 40°F. The month of the year in Greater Sudbury with the coolest water is March, with an average temperature of 33°F.

Average Water Temperature in Greater Sudbury

Average Water Temperature in Greater SudburywarmcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F40°F40°F50°F50°F60°F60°F70°F70°FAug 1267°FAug 1267°F33°FMar 533°FMar 5Jul 860°FJul 860°FSep 2460°FSep 2460°FDec 1040°FDec 1040°FMay 840°FMay 840°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 35°F33°F33°F36°F42°F52°F62°F67°F62°F54°F45°F39°F

To characterize how pleasant the weather is in Greater Sudbury throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Greater Sudbury for general outdoor tourist activities is from late June to late August, with a peak score in the last week of July.

Tourism Score in Greater Sudbury

Tourism Score in Greater Sudburybest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.76.70.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Greater Sudbury for hot-weather activities is from early July to early August, with a peak score in the last week of July.

Beach/Pool Score in Greater Sudbury

Beach/Pool Score in Greater SudburyJanFebMarAprMayJunJulAugSepOctNovDec002244668810103.83.80.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Greater Sudbury typically lasts for 4.8 months (148 days), from around May 8 to around October 3, rarely starting before April 21 or after May 26, and rarely ending before September 16 or after October 20.

Time Spent in Various Temperature Bands and the Growing Season in Greater Sudbury

Time Spent in Various Temperature Bands and the Growing Season in Greater Sudburygrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%May 850%May 850%Oct 350%Oct 350%May 2690%May 2690%Sep 1690%Sep 1690%Apr 2110%Apr 2110%Oct 2010%Oct 2010%0%Feb 150%Feb 15Jul 24100%Jul 24100%NowNowfrigidfreezingcoolcomfortablewarmcoldvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Greater Sudbury should appear around May 11, only rarely appearing before May 1 or after May 24.

Growing Degree Days in Greater Sudbury

Growing Degree Days in Greater SudburyJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°FMay 1190°FMay 1190°FJul 17900°FJul 17900°FSep 201,800°FSep 201,800°FDec 311,910°FDec 311,910°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from May 4 to August 19, with an average daily incident shortwave energy per square meter above 5.6 kWh. The brightest month of the year in Greater Sudbury is June, with an average of 6.5 kWh.

The darker period of the year lasts for 3.6 months, from October 25 to February 13, with an average daily incident shortwave energy per square meter below 2.2 kWh. The darkest month of the year in Greater Sudbury is December, with an average of 1.1 kWh.

Average Daily Incident Shortwave Solar Energy in Greater Sudbury

Average Daily Incident Shortwave Solar Energy in Greater SudburybrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 286.7 kWhJun 286.7 kWhDec 171.1 kWhDec 171.1 kWhMay 45.6 kWhMay 45.6 kWhAug 195.6 kWhAug 195.6 kWhOct 252.2 kWhOct 252.2 kWhFeb 132.2 kWhFeb 132.2 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 1.42.33.64.95.96.56.55.64.22.61.51.1

For the purposes of this report, the geographical coordinates of Greater Sudbury are 46.490 deg latitude, -80.990 deg longitude, and 850 ft elevation.

The topography within 2 miles of Greater Sudbury contains only modest variations in elevation, with a maximum elevation change of 312 feet and an average elevation above sea level of 899 feet. Within 10 miles also contains only modest variations in elevation (453 feet). Within 50 miles contains only modest variations in elevation (1,312 feet).

The area within 2 miles of Greater Sudbury is covered by artificial surfaces (28%), shrubs (28%), herbaceous vegetation (18%), and water (11%), within 10 miles by shrubs (38%) and trees (35%), and within 50 miles by trees (83%) and water (11%).

This report illustrates the typical weather in Greater Sudbury, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Greater Sudbury.

For each station, the records are corrected for the elevation difference between that station and Greater Sudbury according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Greater Sudbury is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Greater Sudbury and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Greater Sudbury and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.