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Climate and Average Weather Year Round in Wucheng China

In Wucheng, the summers are long, warm, and partly cloudy and the winters are freezing, snowy, and mostly clear. Over the course of the year, the temperature typically varies from 0°F to 80°F and is rarely below -8°F or above 87°F.

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

Climate in Wucheng

freezingcoldcoolwarmcoolcoldfreezingJanFebMarAprMayJunJulAugSepOctNovDecNowNow77%77%57%57%clearovercastprecipitation: 3.5 inprecipitation: 3.5 in0.0 in0.0 inmuggy: 10%muggy: 10%0%0%drydrytourism score: 6.5tourism score: 6.50.00.0
Wucheng weather by month. Click on each chart for more information.

The warm season lasts for 4.0 months, from May 15 to September 14, with an average daily high temperature above 69°F. The hottest month of the year in Wucheng is July, with an average high of 80°F and low of 58°F.

The cold season lasts for 3.1 months, from November 21 to February 25, with an average daily high temperature below 34°F. The coldest month of the year in Wucheng is January, with an average low of 1°F and high of 24°F.

Average High and Low Temperature in Wucheng

Average High and Low Temperature in WuchengwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec-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 1323°FJan 1323°FJul 1280°FJul 1280°F0°F0°F58°F58°FMay 1569°FMay 1569°FSep 1469°FSep 1469°FNov 2134°FNov 2134°FFeb 2534°FFeb 2534°F43°F43°F45°F45°F15°F15°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 24°F31°F43°F57°F69°F77°F80°F76°F68°F55°F38°F26°F
Temp. 10°F19°F31°F44°F56°F65°F69°F65°F56°F43°F27°F14°F
Low 1°F9°F22°F32°F43°F53°F58°F55°F45°F32°F18°F5°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 Wucheng

Average Hourly Temperature in WuchengJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowfrigidfrigidfrigidfrigidfreezingfreezingcoldcoldcoolcomfortablewarmvery coldvery 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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

New Town, North Dakota, United States (5,985 miles away) and Aitkin, Minnesota, United States (6,243 miles) are the far-away foreign places with temperatures most similar to Wucheng (view comparison).

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In Wucheng, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year in Wucheng begins around September 16 and lasts for 5.0 months, ending around February 15.

The clearest month of the year in Wucheng is December, during which on average the sky is clear, mostly clear, or partly cloudy 76% of the time.

The cloudier part of the year begins around February 15 and lasts for 7.0 months, ending around September 16.

The cloudiest month of the year in Wucheng is June, during which on average the sky is overcast or mostly cloudy 42% of the time.

Cloud Cover Categories in Wucheng

Cloud Cover Categories in WuchengclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 177%Dec 177%Jun 1757%Jun 1757%Sep 1667%Sep 1667%Feb 1567%Feb 1567%NowNowclearmostly clearovercastpartly cloudymostly 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 26%33%38%39%41%42%39%36%33%29%25%24%
Clearer 74%67%62%61%59%58%61%64%67%71%75%76%

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

The wetter season lasts 3.7 months, from June 1 to September 21, with a greater than 20% chance of a given day being a wet day. The month with the most wet days in Wucheng is July, with an average of 11.4 days with at least 0.04 inches of precipitation.

The drier season lasts 8.3 months, from September 21 to June 1. The month with the fewest wet days in Wucheng is January, with an average of 0.3 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 Wucheng changes throughout the year.

Rain alone is the most common for 7.8 months, from March 14 to November 6. The month with the most days of rain alone in Wucheng is July, with an average of 11.4 days.

Snow alone is the most common for 3.8 months, from November 18 to March 14. The month with the most days of snow alone in Wucheng is March, with an average of 0.5 days.

Mixed snow and rain is the most common for 1.7 weeks, from November 6 to November 18. The month with the most days of mixed snow and rain in Wucheng is March, with an average of 0.5 days.

Daily Chance of Precipitation in Wucheng

Daily Chance of Precipitation in WuchengsnowrainsnowJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 2439%Jul 2439%Jan 211%Jan 211%Mar 145%Mar 145%Nov 65%Nov 65%Jun 120%Jun 120%Sep 2120%Sep 2120%rain
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 0.0d0.1d0.7d2.3d4.7d8.2d11.4d9.6d6.3d2.9d0.3d0.0d
Mixed 0.0d0.1d0.5d0.4d0.0d0.0d0.0d0.0d0.0d0.2d0.5d0.0d
Snow 0.3d0.4d0.5d0.2d0.0d0.0d0.0d0.0d0.0d0.1d0.4d0.3d
Any 0.3d0.5d1.7d3.0d4.7d8.2d11.4d9.6d6.3d3.3d1.2d0.4d

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. Wucheng experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.3 months, from April 12 to October 22, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Wucheng is July, with an average rainfall of 3.4 inches.

The rainless period of the year lasts for 5.7 months, from October 22 to April 12. The month with the least rain in Wucheng is January, with an average rainfall of 0.0 inches.

Average Monthly Rainfall in Wucheng

Average Monthly Rainfall in WuchengrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 inJul 263.5 inJul 263.5 inJan 80.0 inJan 80.0 inApr 120.5 inApr 120.5 inOct 220.5 inOct 220.5 in
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 0.0″0.0″0.2″0.6″1.1″2.1″3.4″2.8″1.8″0.7″0.1″0.0″

Snowfall

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

The snowy period of the year lasts for 5.0 months, from November 3 to April 2, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Wucheng is March, with an average snowfall of 1.2 inches.

The snowless period of the year lasts for 7.0 months, from April 2 to November 3. The least snow falls around July 19, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Wucheng

Average Monthly Snowfall in WuchengsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 inMar 191.2 inMar 191.2 inJul 190.0 inJul 190.0 inNov 51.0 inNov 51.0 inJan 120.3 inJan 120.3 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 0.3″0.7″1.2″0.6″0.0″0.0″0.0″0.0″0.0″0.4″0.9″0.3″

The length of the day in Wucheng varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 21 minutes of daylight; the longest day is June 21, with 15 hours, 0 minutes of daylight.

Hours of Daylight and Twilight in Wucheng

Hours of Daylight and Twilight in WuchengJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2015 hr, 0 minJun 2115 hr, 0 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 21 minDec 219 hr, 21 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 9.7h10.7h12.0h13.3h14.4h14.9h14.7h13.7h12.4h11.1h10.0h9.4h

The earliest sunrise is at 4:56 AM on June 13, and the latest sunrise is 2 hours, 51 minutes later at 7:47 AM on January 5. The earliest sunset is at 5:00 PM on December 7, and the latest sunset is 2 hours, 57 minutes later at 7:57 PM on June 27.

Daylight saving time (DST) is not observed in Wucheng during 2024.

Sunrise & Sunset with Twilight in Wucheng

Sunrise & Sunset with Twilight in WuchengJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 134:56 AMJun 134:56 AM7:57 PMJun 277:57 PMJun 27Dec 75:00 PMDec 75:00 PM7:47 AMJan 57:47 AMJan 5daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 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 Wucheng

Solar Elevation and Azimuth in WuchengJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000010101010202020203030303040404050506060700000101010102020202030303040405050602774NowNow
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 Wucheng

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.

Wucheng experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 1.5 months, from July 7 to August 24, during which time the comfort level is muggy, oppressive, or miserable at least 3% of the time. The month with the most muggy days in Wucheng is July, with 1.8 days that are muggy or worse.

The least muggy day of the year is March 21, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Wucheng

Humidity Comfort Levels in WuchengmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 210%Mar 210%Jul 3010%Jul 3010%drydrymuggymuggycomfortablecomfortable
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 0.0d0.0d0.0d0.0d0.0d0.1d1.8d1.6d0.0d0.0d0.0d0.0d

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

The windier part of the year lasts for 4.2 months, from January 29 to June 3, with average wind speeds of more than 8.5 miles per hour. The windiest month of the year in Wucheng is April, with an average hourly wind speed of 10.5 miles per hour.

The calmer time of year lasts for 7.8 months, from June 3 to January 29. The calmest month of the year in Wucheng is August, with an average hourly wind speed of 6.2 miles per hour.

Average Wind Speed in Wucheng

Average Wind Speed in WuchengwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mphApr 1910.8 mphApr 1910.8 mphAug 156.2 mphAug 156.2 mphJan 298.5 mphJan 298.5 mphJun 38.5 mphJun 38.5 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) 8.59.09.910.59.77.96.76.26.98.18.99.0

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

The wind is most often from the south for 3.6 months, from May 29 to September 17, with a peak percentage of 51% on July 29. The wind is most often from the west for 8.4 months, from September 17 to May 29, with a peak percentage of 67% on January 1.

Wind Direction in Wucheng

Wind Direction in WuchengWSWJanFebMarAprMayJunJulAugSepOctNovDec0%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 Wucheng 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 Wucheng for general outdoor tourist activities is from late June to mid August, with a peak score in the last week of July.

Tourism Score in Wucheng

Tourism Score in Wuchengbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.56.50.00.0NowNowtemperaturetemperature 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 Wucheng 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 Wucheng

Beach/Pool Score in WuchengJanFebMarAprMayJunJulAugSepOctNovDec002244668810102.32.30.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitation
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 Wucheng typically lasts for 4.7 months (144 days), from around May 6 to around September 27, rarely starting before April 20 or after May 22, and rarely ending before September 11 or after October 13.

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

Time Spent in Various Temperature Bands and the Growing Season in Wuchenggrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%May 650%May 650%Sep 2750%Sep 2750%May 2290%May 2290%Sep 1190%Sep 1190%Apr 2010%Apr 2010%Oct 1310%Oct 1310%0%Nov 290%Nov 29Jul 15100%Jul 15100%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 Wucheng should appear around April 30, only rarely appearing before April 22 or after May 10.

Growing Degree Days in Wucheng

Growing Degree Days in WuchengJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°FApr 3090°FApr 3090°FJul 7900°FJul 7900°FAug 291,800°FAug 291,800°FDec 312,126°FDec 312,126°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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from April 12 to July 28, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest month of the year in Wucheng is May, with an average of 6.9 kWh.

The darker period of the year lasts for 3.1 months, from November 2 to February 5, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year in Wucheng is December, with an average of 2.5 kWh.

Average Daily Incident Shortwave Solar Energy in Wucheng

Average Daily Incident Shortwave Solar Energy in WuchengbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMay 297.1 kWhMay 297.1 kWhDec 182.5 kWhDec 182.5 kWhApr 126.2 kWhApr 126.2 kWhJul 286.2 kWhJul 286.2 kWhNov 23.4 kWhNov 23.4 kWhFeb 53.4 kWhFeb 53.4 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) 2.83.85.06.36.96.96.45.85.04.03.02.5

For the purposes of this report, the geographical coordinates of Wucheng are 39.835 deg latitude, 113.624 deg longitude, and 4,150 ft elevation.

The topography within 2 miles of Wucheng contains very significant variations in elevation, with a maximum elevation change of 928 feet and an average elevation above sea level of 4,268 feet. Within 10 miles contains very significant variations in elevation (3,960 feet). Within 50 miles also contains extreme variations in elevation (6,266 feet).

The area within 2 miles of Wucheng is covered by grassland (44%), cropland (41%), and trees (14%), within 10 miles by cropland (40%) and grassland (35%), and within 50 miles by grassland (41%) and cropland (34%).

This report illustrates the typical weather in Wucheng, 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 is only a single weather station, Shijiazhuang Zhengding International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Wucheng.

At a distance of 196 kilometers from Wucheng, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .

The weight assigned to the MERRA-2 value depends on the distance from Wucheng to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 48%, making the weight assigned to the weather station 52%.

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.