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

In Nevada, the summers are hot, muggy, and wet; the winters are very cold, snowy, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 27°F to 90°F and is rarely below 10°F or above 98°F.

Based on the tourism score, the best time of year to visit Nevada for warm-weather activities is from mid May to late September.

Climate in Nevada

coldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow72%72%49%49%clearovercastprecipitation: 5.2 inprecipitation: 5.2 in1.3 in1.3 inmuggy: 81%muggy: 81%0%0%drydrytourism score: 6.3tourism score: 6.30.40.4
Nevada weather by month. Click on each chart for more information.

The hot season lasts for 3.5 months, from June 1 to September 15, with an average daily high temperature above 81°F. The hottest month of the year in Nevada is July, with an average high of 90°F and low of 71°F.

The cold season lasts for 3.0 months, from November 26 to February 25, with an average daily high temperature below 53°F. The coldest month of the year in Nevada is January, with an average low of 27°F and high of 44°F.

Average High and Low Temperature in Nevada

Average High and Low Temperature in NevadahotcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2244°FJan 2244°FJul 2390°FJul 2390°F27°F27°F71°F71°FJun 181°FJun 181°FSep 1581°FSep 1581°FNov 2653°FNov 2653°FFeb 2553°FFeb 2553°F63°F63°F61°F61°F36°F36°F33°F33°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 44°F50°F60°F69°F77°F85°F90°F88°F81°F70°F58°F46°F
Temp. 34°F38°F48°F58°F67°F75°F80°F78°F70°F59°F47°F37°F
Low 27°F31°F40°F49°F58°F67°F71°F69°F61°F50°F40°F30°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 Nevada

Average Hourly Temperature in NevadaJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowfreezingvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotfreezing
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.

Karaj, Iran (6,892 miles away); Xi’an, China (7,244 miles); and Daegu, South Korea (6,658 miles) are the far-away foreign places with temperatures most similar to Nevada (view comparison).

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In Nevada, 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 Nevada begins around June 9 and lasts for 4.7 months, ending around October 31.

The clearest month of the year in Nevada is August, during which on average the sky is clear, mostly clear, or partly cloudy 71% of the time.

The cloudier part of the year begins around October 31 and lasts for 7.3 months, ending around June 9.

The cloudiest month of the year in Nevada is February, during which on average the sky is overcast or mostly cloudy 50% of the time.

Cloud Cover Categories in Nevada

Cloud Cover Categories in NevadaclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 2672%Aug 2672%Feb 1149%Feb 1149%Jun 960%Jun 960%Oct 3161%Oct 3161%NowNowclearmostly clearpartly cloudyovercastmostly cloudy
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 48%50%48%42%44%37%30%29%30%35%43%48%
Clearer 52%50%52%58%56%63%70%71%70%65%57%52%

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

The wetter season lasts 5.5 months, from March 29 to September 14, with a greater than 29% chance of a given day being a wet day. The month with the most wet days in Nevada is May, with an average of 13.2 days with at least 0.04 inches of precipitation.

The drier season lasts 6.5 months, from September 14 to March 29. The month with the fewest wet days in Nevada is January, with an average of 4.2 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. The month with the most days of rain alone in Nevada is May, with an average of 13.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 45% on May 20.

Daily Chance of Precipitation in Nevada

Daily Chance of Precipitation in NevadawetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%May 2045%May 2045%Jan 913%Jan 913%Mar 2929%Mar 2929%Sep 1429%Sep 1429%NowNowrainsnowmixed
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 2.7d3.8d7.4d9.7d13.2d12.7d10.3d9.3d8.7d7.8d5.7d3.6d
Mixed 0.7d0.5d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.7d
Snow 0.9d0.8d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.5d
Any 4.2d5.0d7.8d9.7d13.2d12.7d10.3d9.3d8.7d7.8d6.0d4.9d

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. Nevada experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Nevada. The month with the most rain in Nevada is May, with an average rainfall of 5.2 inches.

The month with the least rain in Nevada is January, with an average rainfall of 1.0 inches.

Average Monthly Rainfall in Nevada

Average Monthly Rainfall in NevadaJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 inMay 185.2 inMay 185.2 inJan 201.0 inJan 201.0 inSep 164.1 inSep 164.1 inAug 13.2 inAug 13.2 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 1.0″1.7″2.8″4.0″5.2″5.0″3.5″3.3″4.1″3.4″2.8″1.8″

Snowfall

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

The snowy period of the year lasts for 3.7 months, from November 21 to March 11, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Nevada is January, with an average snowfall of 2.7 inches.

The snowless period of the year lasts for 8.3 months, from March 11 to November 21. The least snow falls around July 19, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Nevada

Average Monthly Snowfall in NevadasnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 inFeb 12.7 inFeb 12.7 inJul 190.0 inJul 190.0 inNov 211.0 inNov 211.0 inMar 111.0 inMar 111.0 in
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 2.7″2.4″0.7″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.7″2.2″

The length of the day in Nevada varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 33 minutes of daylight; the longest day is June 20, with 14 hours, 47 minutes of daylight.

Hours of Daylight and Twilight in Nevada

Hours of Daylight and Twilight in NevadaJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 1912 hr, 7 minMar 1914 hr, 47 minJun 2014 hr, 47 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 229 hr, 32 minDec 219 hr, 32 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 9.9h10.8h12.0h13.2h14.2h14.7h14.5h13.6h12.4h11.2h10.1h9.6h

The earliest sunrise is at 5:54 AM on June 13, and the latest sunrise is 1 hour, 50 minutes later at 7:44 AM on November 2. The earliest sunset is at 4:58 PM on December 5, and the latest sunset is 3 hours, 46 minutes later at 8:43 PM on June 28.

Daylight saving time (DST) is observed in Nevada 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 Nevada

Sunrise & Sunset with Twilight and Daylight Saving Time in NevadaJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:54 AMJun 135:54 AM8:43 PMJun 288:43 PMJun 28Dec 54:58 PMDec 54:58 PM7:44 AMNov 27:44 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 Nevada

Solar Elevation and Azimuth in NevadaJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM0001010101020202030303040404050506060700001010102020202030304040505060702976NowNow
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 Nevada

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.

Nevada experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.3 months, from May 15 to September 24, during which time the comfort level is muggy, oppressive, or miserable at least 20% of the time. The month with the most muggy days in Nevada is July, with 24.9 days that are muggy or worse.

The month with the fewest muggy days in Nevada is January, with 0.0 days that are muggy or worse.

Humidity Comfort Levels in Nevada

Humidity Comfort Levels in NevadamuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 300%Jan 300%81%Jul 2181%Jul 21May 1520%May 1520%Sep 2420%Sep 2420%NowNowoppressiveoppressivemuggymuggyhumidhumiddrydrycomfortablecomfortable
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 0.0d0.0d0.1d0.7d7.0d19.0d24.9d21.7d10.0d1.7d0.1d0.0d

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

The windier part of the year lasts for 7.2 months, from October 13 to May 19, with average wind speeds of more than 9.7 miles per hour. The windiest month of the year in Nevada is March, with an average hourly wind speed of 11.7 miles per hour.

The calmer time of year lasts for 4.8 months, from May 19 to October 13. The calmest month of the year in Nevada is August, with an average hourly wind speed of 7.7 miles per hour.

Average Wind Speed in Nevada

Average Wind Speed in NevadawindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphMar 3112.0 mphMar 3112.0 mphAug 27.4 mphAug 27.4 mphOct 139.7 mphOct 139.7 mphMay 199.7 mphMay 199.7 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) 10.711.111.711.59.98.87.97.78.89.810.510.3

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

The wind is most often from the north for 1.5 months, from January 9 to February 24, with a peak percentage of 35% on February 18. The wind is most often from the south for 11 months, from February 24 to January 9, with a peak percentage of 34% on January 1.

Wind Direction in Nevada

Wind Direction in NevadaNSJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsoutheastnorthwest
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 Nevada 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 Nevada for general outdoor tourist activities is from mid May to late September, with a peak score in the second week of September.

Tourism Score in Nevada

Tourism Score in Nevadabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.36.30.40.46.06.05.75.7NowNowtemperaturetemperature 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 Nevada for hot-weather activities is from mid June to early September, with a peak score in the second week of July.

Beach/Pool Score in Nevada

Beach/Pool Score in Nevadabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.26.20.00.0NowNowtemperaturetemperature 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 Nevada typically lasts for 6.9 months (211 days), from around April 2 to around October 30, rarely starting before March 16 or after April 19, and rarely ending before October 13 or after November 19.

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

Time Spent in Various Temperature Bands and the Growing Season in Nevadagrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Apr 250%Apr 250%Oct 3050%Oct 3090%Apr 1990%Apr 1990%Oct 1390%Oct 1310%Mar 1610%Mar 1610%Nov 1910%Nov 190%Dec 210%Dec 21Jul 15100%Jul 15100%NowNowfreezingvery coldcoldcomfortablewarmhotcoolfrigidsweltering
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 Nevada should appear around March 6, only rarely appearing before February 21 or after March 24.

Growing Degree Days in Nevada

Growing Degree Days in NevadaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°F4,500°F4,500°FMar 687°FMar 687°FMay 25900°FMay 25900°FJul 11,800°FJul 11,800°FDec 314,565°FDec 314,565°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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.9 months, from April 30 to August 27, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest month of the year in Nevada is July, with an average of 6.9 kWh.

The darker period of the year lasts for 3.2 months, from November 4 to February 9, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest month of the year in Nevada is December, with an average of 2.3 kWh.

Average Daily Incident Shortwave Solar Energy in Nevada

Average Daily Incident Shortwave Solar Energy in NevadabrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJul 87.0 kWhJul 87.0 kWhDec 182.2 kWhDec 182.2 kWhApr 306.0 kWhApr 306.0 kWhAug 276.0 kWhAug 276.0 kWhNov 43.2 kWhNov 43.2 kWhFeb 93.2 kWhFeb 93.2 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) 2.63.44.65.76.36.86.96.35.34.02.82.3

For the purposes of this report, the geographical coordinates of Nevada are 37.839 deg latitude, -94.355 deg longitude, and 869 ft elevation.

The topography within 2 miles of Nevada contains only modest variations in elevation, with a maximum elevation change of 131 feet and an average elevation above sea level of 840 feet. Within 10 miles also contains only modest variations in elevation (246 feet). Within 50 miles contains only modest variations in elevation (676 feet).

The area within 2 miles of Nevada is covered by artificial surfaces (47%), cropland (31%), and trees (22%), within 10 miles by cropland (78%) and trees (19%), and within 50 miles by cropland (75%) and trees (19%).

This report illustrates the typical weather in Nevada, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Nevada.

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