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Climate and Average Weather Year Round in Shelburne Ontario, Canada

In Shelburne, the summers are comfortable and partly cloudy and the winters are freezing, snowy, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 10°F to 76°F and is rarely below -6°F or above 84°F.

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

Climate in Shelburne

freezingcoldcoolcomfortablewarmcomfortablecoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow66%66%28%28%clearovercastprecipitation: 2.3 inprecipitation: 2.3 in0.9 in0.9 inmuggy: 16%muggy: 16%0%0%drydrytourism score: 6.7tourism score: 6.70.00.0
Shelburne weather by month. Click on each chart for more information.

The warm season lasts for 3.7 months, from May 26 to September 18, with an average daily high temperature above 65°F. The hottest month of the year in Shelburne is July, with an average high of 75°F and low of 57°F.

The cold season lasts for 3.4 months, from December 1 to March 13, with an average daily high temperature below 34°F. The coldest month of the year in Shelburne is January, with an average low of 11°F and high of 24°F.

Average High and Low Temperature in Shelburne

Average High and Low Temperature in ShelburnewarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec-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 2923°FJan 2923°FJul 1876°FJul 1876°F10°F10°F57°F57°FMay 2665°FMay 2665°FSep 1865°FSep 1865°FDec 134°FDec 134°FMar 1334°FMar 1334°F46°F46°F48°F48°F23°F23°F18°F18°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 24°F26°F36°F50°F62°F71°F75°F74°F66°F53°F41°F29°F
Temp. 17°F18°F27°F40°F53°F61°F66°F65°F57°F45°F34°F24°F
Low 11°F12°F21°F33°F43°F52°F57°F55°F48°F38°F28°F18°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 Shelburne

Average Hourly Temperature in ShelburneJanFebMarAprMayJunJulAugSepOctNovDec12 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 coldvery coldcoldcoldcoolcomfortable
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.

Astghadzor, Armenia (5,713 miles away) and Utashinai, Japan (5,855 miles) are the far-away foreign places with temperatures most similar to Shelburne (view comparison).

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In Shelburne, 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 Shelburne begins around May 4 and lasts for 5.8 months, ending around October 29.

The clearest month of the year in Shelburne is August, during which on average the sky is clear, mostly clear, or partly cloudy 65% of the time.

The cloudier part of the year begins around October 29 and lasts for 6.2 months, ending around May 4.

The cloudiest month of the year in Shelburne is January, during which on average the sky is overcast or mostly cloudy 71% of the time.

Cloud Cover Categories in Shelburne

Cloud Cover Categories in ShelburneclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 966%Aug 966%Jan 1028%Jan 1028%May 447%May 447%Oct 2947%Oct 2947%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 71%67%59%55%52%45%37%35%39%48%59%67%
Clearer 29%33%41%45%48%55%63%65%61%52%41%33%

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

The wetter season lasts 7.3 months, from April 11 to November 21, with a greater than 23% chance of a given day being a wet day. The month with the most wet days in Shelburne is September, with an average of 8.6 days with at least 0.04 inches of precipitation.

The drier season lasts 4.7 months, from November 21 to April 11. The month with the fewest wet days in Shelburne is February, with an average of 4.4 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 Shelburne changes throughout the year.

Rain alone is the most common for 8.8 months, from March 14 to December 6. The month with the most days of rain alone in Shelburne is September, with an average of 8.6 days.

Snow alone is the most common for 3.2 months, from December 6 to March 14. The month with the most days of snow alone in Shelburne is January, with an average of 3.5 days.

Daily Chance of Precipitation in Shelburne

Daily Chance of Precipitation in ShelburnesnowrainsnowJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Oct 631%Oct 631%Feb 2114%Feb 2114%Dec 621%Dec 621%Apr 1123%Apr 1123%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 1.1d0.7d2.4d5.4d8.1d8.2d8.4d8.0d8.6d8.5d4.9d2.1d
Mixed 0.8d1.0d1.2d0.6d0.0d0.0d0.0d0.0d0.0d0.1d0.9d1.1d
Snow 3.5d2.7d2.0d0.6d0.0d0.0d0.0d0.0d0.0d0.1d1.2d3.0d
Any 5.4d4.4d5.5d6.6d8.1d8.2d8.4d8.0d8.6d8.8d6.9d6.1d

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. Shelburne experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.6 months, from March 5 to December 24, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Shelburne is September, with an average rainfall of 2.3 inches.

The rainless period of the year lasts for 2.4 months, from December 24 to March 5. The month with the least rain in Shelburne is January, with an average rainfall of 0.3 inches.

Average Monthly Rainfall in Shelburne

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″0.4″0.7″1.4″1.9″2.0″2.0″1.9″2.3″2.0″1.3″0.6″

Snowfall

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

The snowy period of the year lasts for 5.9 months, from October 26 to April 23, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Shelburne is February, with an average snowfall of 6.3 inches.

The snowless period of the year lasts for 6.1 months, from April 23 to October 26. The least snow falls around July 7, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Shelburne

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 6.3″6.3″4.6″1.8″0.0″0.0″0.0″0.0″0.0″0.4″3.3″6.2″

The length of the day in Shelburne varies significantly over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 53 minutes of daylight; the longest day is June 20, with 15 hours, 30 minutes of daylight.

Hours of Daylight and Twilight in Shelburne

Hours of Daylight and Twilight in ShelburneJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 1912 hr, 8 minMar 1915 hr, 30 minJun 2015 hr, 30 minJun 2012 hr, 12 minSep 2212 hr, 12 minSep 228 hr, 53 minDec 218 hr, 53 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 9.3h10.5h12.0h13.5h14.8h15.4h15.1h13.9h12.5h11.0h9.6h8.9h

The earliest sunrise is at 5:37 AM on June 14, and the latest sunrise is 2 hours, 22 minutes later at 7:59 AM on November 2. The earliest sunset is at 4:42 PM on December 9, and the latest sunset is 4 hours, 26 minutes later at 9:08 PM on June 26.

Daylight saving time (DST) is observed in Shelburne 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 Shelburne

Sunrise & Sunset with Twilight and Daylight Saving Time in ShelburneJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 145:37 AMJun 145:37 AM9:08 PMJun 269:08 PMJun 26Dec 94:42 PMDec 94:42 PM7:59 AMNov 27:59 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 Shelburne

Solar Elevation and Azimuth in ShelburneJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000101010102020203030304040506000010101020202020303040405050602269NowNow
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 Shelburne

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.

Shelburne experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.4 months, from June 5 to September 19, during which time the comfort level is muggy, oppressive, or miserable at least 4% of the time. The month with the most muggy days in Shelburne is July, with 4.6 days that are muggy or worse.

The least muggy day of the year is February 26, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Shelburne

Humidity Comfort Levels in ShelburnemuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 260%Feb 260%Jul 1916%Jul 1916%Jun 54%Jun 54%Sep 194%Sep 194%muggymuggyhumidhumidcomfortablecomfortabledrydry
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 0.0d0.0d0.0d0.0d0.3d2.0d4.6d3.8d1.6d0.1d0.0d0.0d

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 Shelburne experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.9 months, from October 27 to April 24, with average wind speeds of more than 10.7 miles per hour. The windiest month of the year in Shelburne is January, with an average hourly wind speed of 13.4 miles per hour.

The calmer time of year lasts for 6.1 months, from April 24 to October 27. The calmest month of the year in Shelburne is August, with an average hourly wind speed of 8.1 miles per hour.

Average Wind Speed in Shelburne

Average Wind Speed in ShelburnewindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphJan 3113.5 mphJan 3113.5 mphAug 38.0 mphAug 38.0 mphOct 2710.7 mphOct 2710.7 mphApr 2410.7 mphApr 2410.7 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) 13.413.312.611.49.68.88.48.19.110.311.512.4

The predominant average hourly wind direction in Shelburne is from the west throughout the year.

Wind Direction in Shelburne

Wind Direction in ShelburneJanFebMarAprMayJunJulAugSepOctNovDec0%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).

Shelburne 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 2.6 months, from July 7 to September 26, with an average temperature above 61°F. The month of the year in Shelburne 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 20 to May 15, with an average temperature below 41°F. The month of the year in Shelburne with the coolest water is March, with an average temperature of 35°F.

Average Water Temperature in Shelburne

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 38°F35°F35°F37°F42°F52°F64°F67°F64°F55°F47°F42°F

To characterize how pleasant the weather is in Shelburne 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 Shelburne 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 Shelburne

Tourism Score in Shelburnebest 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 Shelburne for hot-weather activities is from early July to early August, with a peak score in the third week of July.

Beach/Pool Score in Shelburne

Beach/Pool Score in ShelburneJanFebMarAprMayJunJulAugSepOctNovDec002244668810103.93.90.00.0NowNowtemperaturetemperature 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 Shelburne typically lasts for 4.7 months (143 days), from around May 13 to around October 3, rarely starting before April 25 or after May 31, and rarely ending before September 16 or after October 21.

Time Spent in Various Temperature Bands and the Growing Season in Shelburne

Time Spent in Various Temperature Bands and the Growing Season in Shelburnegrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%May 1350%May 1350%Oct 350%Oct 350%May 3190%May 3190%Sep 1690%Sep 1690%Apr 2510%Apr 2510%Oct 2110%Oct 2110%0%Dec 70%Dec 7Jul 23100%Jul 23100%NowNowfrigidfreezingcoolcomfortablecoldwarmvery 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 Shelburne should appear around May 9, only rarely appearing before April 27 or after May 22.

Growing Degree Days in Shelburne

Growing Degree Days in ShelburneJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°FMay 990°FMay 990°FJul 19900°FJul 19900°FSep 301,800°FSep 301,800°FDec 311,885°FDec 311,885°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 3 to August 20, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest month of the year in Shelburne is June, with an average of 6.8 kWh.

The darker period of the year lasts for 3.5 months, from October 29 to February 14, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest month of the year in Shelburne is December, with an average of 1.2 kWh.

Average Daily Incident Shortwave Solar Energy in Shelburne

Average Daily Incident Shortwave Solar Energy in ShelburnebrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 297.0 kWhJun 297.0 kWhDec 231.2 kWhDec 231.2 kWhMay 35.8 kWhMay 35.8 kWhAug 205.8 kWhAug 205.8 kWhOct 292.3 kWhOct 292.3 kWhFeb 142.3 kWhFeb 142.3 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) 1.52.43.85.16.26.86.75.94.63.01.71.2

For the purposes of this report, the geographical coordinates of Shelburne are 44.079 deg latitude, -80.204 deg longitude, and 1,608 ft elevation.

The topography within 2 miles of Shelburne contains only modest variations in elevation, with a maximum elevation change of 154 feet and an average elevation above sea level of 1,602 feet. Within 10 miles contains only modest variations in elevation (817 feet). Within 50 miles contains significant variations in elevation (1,542 feet).

The area within 2 miles of Shelburne is covered by cropland (63%), trees (20%), and grassland (13%), within 10 miles by cropland (50%) and trees (37%), and within 50 miles by cropland (39%) and trees (32%).

This report illustrates the typical weather in Shelburne, 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Shelburne.

For each station, the records are corrected for the elevation difference between that station and Shelburne 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 Shelburne is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Shelburne 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 Shelburne 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.