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Climate and Average Weather Year Round in McGill Nevada, United States

In McGill, the summers are warm, dry, and mostly clear and the winters are freezing, snowy, and partly cloudy. Over the course of the year, the temperature typically varies from 14°F to 87°F and is rarely below -3°F or above 93°F.

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

Climate in McGill

very coldcoldcoolwarmhotwarmcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow83%83%50%50%clearovercastprecipitation: 1.0 inprecipitation: 1.0 in0.4 in0.4 inmuggy: 0%muggy: 0%drydrytourism score: 6.2tourism score: 6.20.00.0
McGill weather by month. Click on each chart for more information.

The hot season lasts for 3.1 months, from June 9 to September 12, with an average daily high temperature above 77°F. The hottest month of the year in McGill is July, with an average high of 86°F and low of 51°F.

The cold season lasts for 3.5 months, from November 18 to March 4, with an average daily high temperature below 48°F. The coldest month of the year in McGill is January, with an average low of 15°F and high of 39°F.

Average High and Low Temperature in McGill

Average High and Low Temperature in McGillhotcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec-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°FDec 3038°FDec 3038°FJul 2087°FJul 2087°F14°F14°F52°F52°FJun 977°FJun 977°FSep 1277°FSep 1277°FMar 448°FMar 448°F42°F42°F43°F43°F22°F22°F24°F24°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 39°F43°F51°F59°F68°F79°F86°F84°F75°F63°F49°F39°F
Temp. 25°F29°F37°F43°F52°F62°F70°F68°F58°F46°F34°F25°F
Low 15°F19°F26°F30°F37°F44°F51°F50°F41°F31°F23°F15°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 McGill

Average Hourly Temperature in McGillJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowfreezingfreezingfreezingfreezingvery coldvery coldcoldcoolcoolcomfortablewarm
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.

Hacıbektaş, Turkey (6,694 miles away) and Fareydūnshahr, Iran (7,354 miles) are the far-away foreign places with temperatures most similar to McGill (view comparison).

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In McGill, 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 McGill begins around May 31 and lasts for 4.8 months, ending around October 26.

The clearest month of the year in McGill is August, during which on average the sky is clear, mostly clear, or partly cloudy 82% of the time.

The cloudier part of the year begins around October 26 and lasts for 7.2 months, ending around May 31.

The cloudiest month of the year in McGill is February, during which on average the sky is overcast or mostly cloudy 49% of the time.

Cloud Cover Categories in McGill

Cloud Cover Categories in McGillclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Sep 783%Sep 783%Feb 2950%Feb 2950%May 3166%May 3166%Oct 2667%Oct 2667%NowNowclearmostly clearpartly 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 46%49%47%43%38%24%19%18%19%29%41%44%
Clearer 54%51%53%57%62%76%81%82%81%71%59%56%

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

The wetter season lasts 11 months, from July 18 to June 8, with a greater than 11% chance of a given day being a wet day. The month with the most wet days in McGill is April, with an average of 4.7 days with at least 0.04 inches of precipitation.

The drier season lasts 1.3 months, from June 8 to July 18. The month with the fewest wet days in McGill is June, with an average of 2.7 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 McGill changes throughout the year.

Rain alone is the most common for 9.5 months, from February 16 to March 24 and from March 29 to December 7. The month with the most days of rain alone in McGill is May, with an average of 4.3 days.

Mixed snow and rain is the most common for 2.0 months, from February 5 to February 16, from March 24 to March 29, and from December 7 to January 21. The month with the most days of mixed snow and rain in McGill is March, with an average of 1.8 days.

Snow alone is the most common for 2.1 weeks, from January 21 to February 5. The month with the most days of snow alone in McGill is February, with an average of 1.2 days.

Daily Chance of Precipitation in McGill

Daily Chance of Precipitation in McGillrainrainJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%May 217%May 217%Jun 286%Jun 286%Jan 2110%Jan 2110%Mar 2415%Mar 2415%Dec 79%Dec 79%NowNowrainsnow
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 0.9d1.4d2.0d2.9d4.3d2.7d3.0d3.7d3.3d3.0d1.7d1.0d
Mixed 1.3d1.4d1.8d1.5d0.4d0.0d0.0d0.0d0.1d0.6d0.9d1.2d
Snow 1.2d1.2d0.7d0.4d0.0d0.0d0.0d0.0d0.0d0.2d0.4d0.9d
Any 3.4d4.0d4.5d4.7d4.8d2.7d3.0d3.7d3.4d3.7d3.0d3.1d

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. McGill experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.6 months, from March 20 to November 8, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in McGill is May, with an average rainfall of 0.9 inches.

The rainless period of the year lasts for 4.4 months, from November 8 to March 20. The month with the least rain in McGill is January, with an average rainfall of 0.3 inches.

Average Monthly Rainfall in McGill

Average Monthly Rainfall in McGillrainJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inMay 160.9 inMay 160.9 inJan 190.3 inJan 190.3 inSep 260.8 inSep 260.8 inJul 30.4 inJul 30.4 inMar 200.5 inMar 200.5 inNov 80.5 inNov 80.5 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″0.4″0.5″0.7″0.9″0.5″0.4″0.6″0.7″0.7″0.4″0.3″

Snowfall

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

The snowy period of the year lasts for 6.2 months, from October 27 to May 1, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in McGill is February, with an average snowfall of 3.2 inches.

The snowless period of the year lasts for 5.8 months, from May 1 to October 27. The least snow falls around July 26, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in McGill

Average Monthly Snowfall in McGillsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 inJan 53.3 inJan 53.3 inJul 260.0 inJul 260.0 inOct 271.0 inOct 271.0 inMay 11.0 inMay 11.0 inNowNow
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 3.0″3.2″2.5″2.0″0.4″0.0″0.0″0.0″0.1″0.6″1.7″3.0″

The length of the day in McGill varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 23 minutes of daylight; the longest day is June 20, with 14 hours, 57 minutes of daylight.

Hours of Daylight and Twilight in McGill

Hours of Daylight and Twilight in McGillJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 1912 hr, 8 minMar 1914 hr, 57 minJun 2014 hr, 57 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 229 hr, 23 minDec 219 hr, 23 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 9.8h10.7h12.0h13.3h14.4h14.9h14.6h13.6h12.4h11.1h10.0h9.4h

The earliest sunrise is at 5:11 AM on June 13, and the latest sunrise is 1 hour, 57 minutes later at 7:09 AM on November 2. The earliest sunset is at 4:15 PM on December 7, and the latest sunset is 3 hours, 55 minutes later at 8:10 PM on June 27.

Daylight saving time (DST) is observed in McGill 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 McGill

Sunrise & Sunset with Twilight and Daylight Saving Time in McGillJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:11 AMJun 135:11 AM8:10 PMJun 278:10 PMJun 27Dec 74:15 PMDec 74:15 PM7:09 AMNov 27:09 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 McGill

Solar Elevation and Azimuth in McGillJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM00010101010202020303030404040505060607000010101020202020303040405050602774NowNow
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 McGill

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 McGill, 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, remaining a virtually constant 0% throughout.

Humidity Comfort Levels in McGill

Humidity Comfort Levels in McGillJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 20%Jul 20%NowNowdrydrycomfortablecomfortable
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 0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d

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 McGill experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.1 months, from February 17 to June 22, with average wind speeds of more than 7.9 miles per hour. The windiest month of the year in McGill is April, with an average hourly wind speed of 8.9 miles per hour.

The calmer time of year lasts for 7.9 months, from June 22 to February 17. The calmest month of the year in McGill is October, with an average hourly wind speed of 6.9 miles per hour.

Average Wind Speed in McGill

Average Wind Speed in McGillwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphApr 69.0 mphApr 69.0 mphOct 76.8 mphOct 76.8 mphFeb 177.9 mphFeb 177.9 mphJun 227.9 mphJun 227.9 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) 7.27.98.68.98.28.07.37.27.16.97.37.4

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

The wind is most often from the west for 2.6 months, from March 20 to June 7, with a peak percentage of 34% on May 2. The wind is most often from the south for 9.4 months, from June 7 to March 20, with a peak percentage of 34% on January 1.

Wind Direction in McGill

Wind Direction in McGillSWSJanFebMarAprMayJunJulAugSepOctNovDec0%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).

To characterize how pleasant the weather is in McGill 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 McGill for general outdoor tourist activities is from late June to late August, with a peak score in the third week of July.

Tourism Score in McGill

Tourism Score in McGillbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.26.20.00.0NowNowtemperaturetemperature 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 McGill for hot-weather activities is from late June to mid August, with a peak score in the third week of July.

Beach/Pool Score in McGill

Beach/Pool Score in McGillbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810103.93.90.00.0NowNowtemperaturetemperature 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 McGill typically lasts for 3.3 months (101 days), from around June 8 to around September 17, rarely starting before May 17 or after June 27, and rarely ending before August 31 or after October 5.

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

Time Spent in Various Temperature Bands and the Growing Season in McGillJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jun 850%Jun 850%Sep 1750%Sep 1750%Jun 2790%Jun 2790%Aug 3190%Aug 3190%May 1710%May 1710%Oct 510%Oct 510%0%Feb 290%Feb 29Jul 29100%Jul 29100%NowNowfrigidfreezingvery coldcoldcoolcomfortablewarmhot
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 McGill should appear around April 21, only rarely appearing before April 5 or after May 8.

Growing Degree Days in McGill

Growing Degree Days in McGillJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°FApr 2190°FApr 2190°FJul 8900°FJul 8900°FAug 251,800°FAug 251,800°FDec 312,374°FDec 312,374°F
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 3.1 months, from May 11 to August 15, with an average daily incident shortwave energy per square meter above 7.3 kWh. The brightest month of the year in McGill is June, with an average of 8.4 kWh.

The darker period of the year lasts for 3.5 months, from October 31 to February 13, with an average daily incident shortwave energy per square meter below 3.7 kWh. The darkest month of the year in McGill is December, with an average of 2.5 kWh.

Average Daily Incident Shortwave Solar Energy in McGill

Average Daily Incident Shortwave Solar Energy in McGillbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhJun 278.6 kWhJun 278.6 kWhDec 212.5 kWhDec 212.5 kWhMay 117.3 kWhMay 117.3 kWhAug 157.3 kWhAug 157.3 kWhOct 313.7 kWhOct 313.7 kWhFeb 133.7 kWhFeb 133.7 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) 2.83.85.16.57.58.48.17.26.04.53.12.5

For the purposes of this report, the geographical coordinates of McGill are 39.405 deg latitude, -114.779 deg longitude, and 6,207 ft elevation.

The topography within 2 miles of McGill contains large variations in elevation, with a maximum elevation change of 2,385 feet and an average elevation above sea level of 6,516 feet. Within 10 miles contains large variations in elevation (5,833 feet). Within 50 miles also contains extreme variations in elevation (8,238 feet).

The area within 2 miles of McGill is covered by shrubs (92%), within 10 miles by shrubs (80%) and trees (17%), and within 50 miles by shrubs (79%) and trees (18%).

This report illustrates the typical weather in McGill, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in McGill.

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