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Climate and Average Weather Year Round in Ulan China

In Ulan, the summers are long, warm, and partly cloudy and the winters are freezing, dry, and mostly clear. Over the course of the year, the temperature typically varies from 2°F to 81°F and is rarely below -6°F or above 89°F.

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

Climate in Ulan

freezingcoldcoolwarmcoolcoldfreezingJanFebMarAprMayJunJulAugSepOctNovDecNowNow76%76%58%58%clearovercastprecipitation: 2.0 inprecipitation: 2.0 in0.0 in0.0 inmuggy: 10%muggy: 10%0%0%drydrytourism score: 7.4tourism score: 7.40.00.0
Ulan weather by month. Click on each chart for more information.

The warm season lasts for 4.0 months, from May 12 to September 11, with an average daily high temperature above 70°F. The hottest month of the year in Ulan is July, with an average high of 81°F and low of 62°F.

The cold season lasts for 3.0 months, from November 22 to February 21, with an average daily high temperature below 35°F. The coldest month of the year in Ulan is January, with an average low of 3°F and high of 24°F.

Average High and Low Temperature in Ulan

Average High and Low Temperature in UlanwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec-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 1781°FJul 1781°F2°F2°F63°F63°FMay 1270°FMay 1270°FSep 1170°FSep 1170°FNov 2235°FNov 2235°FFeb 2135°FFeb 2135°F47°F47°F50°F50°F17°F17°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°F32°F45°F60°F70°F78°F81°F77°F68°F56°F39°F26°F
Temp. 13°F22°F34°F48°F59°F68°F72°F68°F58°F45°F30°F17°F
Low 3°F11°F24°F37°F49°F58°F62°F59°F48°F34°F20°F8°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 Ulan

Average Hourly Temperature in UlanJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowfrigidfrigidfrigidfreezingfreezingcoldcoldcoolcomfortablewarmcomfortablevery coldvery coldfrigid
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.

Benson, Minnesota, United States (6,431 miles away) is the far-away foreign place with temperatures most similar to Ulan (view comparison).

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In Ulan, 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 Ulan begins around August 11 and lasts for 5.9 months, ending around February 8.

The clearest month of the year in Ulan is November, during which on average the sky is clear, mostly clear, or partly cloudy 75% of the time.

The cloudier part of the year begins around February 8 and lasts for 6.1 months, ending around August 11.

The cloudiest month of the year in Ulan is May, during which on average the sky is overcast or mostly cloudy 41% of the time.

Cloud Cover Categories in Ulan

Cloud Cover Categories in UlanclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Nov 3076%Nov 3076%Apr 3058%Apr 3058%Aug 1167%Aug 1167%Feb 867%Feb 867%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 28%35%40%41%41%40%35%33%31%29%25%25%
Clearer 72%65%60%59%59%60%65%67%69%71%75%75%

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

The wetter season lasts 3.2 months, from June 11 to September 19, with a greater than 11% chance of a given day being a wet day. The month with the most wet days in Ulan is August, with an average of 6.7 days with at least 0.04 inches of precipitation.

The drier season lasts 8.8 months, from September 19 to June 11. The month with the fewest wet days in Ulan is January, with an average of 0.1 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 Ulan is August, with an average of 6.7 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 23% on August 11.

Daily Chance of Precipitation in Ulan

Daily Chance of Precipitation in UlanwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Aug 1123%Aug 1123%Jan 140%Jan 140%Mar 52%Mar 52%Nov 182%Nov 182%Jun 1111%Jun 1111%Sep 1911%Sep 1911%NowNowrain
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 0.0d0.0d0.5d1.3d2.7d4.0d5.9d6.7d3.9d1.7d0.3d0.0d
Mixed 0.0d0.1d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.1d0.0d
Snow 0.1d0.2d0.1d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.2d0.2d
Any 0.1d0.3d0.9d1.4d2.7d4.0d5.9d6.7d3.9d1.8d0.6d0.2d

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. Ulan experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 5.3 months, from April 30 to October 6, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Ulan is August, with an average rainfall of 1.9 inches.

The rainless period of the year lasts for 6.8 months, from October 6 to April 30. The month with the least rain in Ulan is December, with an average rainfall of 0.0 inches.

Average Monthly Rainfall in Ulan

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″0.1″0.3″0.7″1.0″1.7″1.9″1.0″0.4″0.1″0.0″

The length of the day in Ulan varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 25 minutes of daylight; the longest day is June 21, with 14 hours, 55 minutes of daylight.

Hours of Daylight and Twilight in Ulan

Hours of Daylight and Twilight in UlanJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2014 hr, 55 minJun 2114 hr, 55 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 25 minDec 219 hr, 25 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 9.8h10.7h12.0h13.2h14.3h14.9h14.6h13.6h12.4h11.2h10.0h9.5h

The earliest sunrise is at 5:21 AM on June 13, and the latest sunrise is 2 hours, 46 minutes later at 8:07 AM on January 6. The earliest sunset is at 5:25 PM on December 7, and the latest sunset is 2 hours, 53 minutes later at 8:18 PM on June 27.

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

Sunrise & Sunset with Twilight in Ulan

Sunrise & Sunset with Twilight in UlanJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:21 AMJun 135:21 AM8:18 PMJun 278:18 PMJun 27Dec 75:25 PMDec 75:25 PM8:07 AMJan 68:07 AMJan 6daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Ulan

Solar Elevation and Azimuth in UlanJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM00001010101020202020303030304040405050606070000010101010202020203030304040505060702774NowNow
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 Ulan

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 Ulan, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 5% of 5% throughout.

Humidity Comfort Levels in Ulan

Humidity Comfort Levels in UlanJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 100%Mar 100%Jul 2610%Jul 2610%NowNowdrydrycomfortablecomfortablemuggymuggy
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 0.0d0.0d0.0d0.0d0.0d0.2d2.0d1.7d0.2d0.0d0.0d0.0d

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

The windier part of the year lasts for 3.4 months, from February 29 to June 10, with average wind speeds of more than 10.1 miles per hour. The windiest month of the year in Ulan is April, with an average hourly wind speed of 11.5 miles per hour.

The calmer time of year lasts for 8.6 months, from June 10 to February 29. The calmest month of the year in Ulan is January, with an average hourly wind speed of 8.7 miles per hour.

Average Wind Speed in Ulan

Average Wind Speed in UlanwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphApr 2511.8 mphApr 2511.8 mphJan 238.5 mphJan 238.5 mphJun 1010.1 mphJun 1010.1 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) 8.79.410.711.511.29.99.18.98.79.19.39.3

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

The wind is most often from the south for 4.8 months, from May 18 to October 12, with a peak percentage of 45% on July 28. The wind is most often from the west for 7.2 months, from October 12 to May 18, with a peak percentage of 51% on January 1.

Wind Direction in Ulan

Wind Direction in UlanWSWJanFebMarAprMayJunJulAugSepOctNovDec0%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 Ulan 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 Ulan for general outdoor tourist activities is from mid June to late August, with a peak score in the last week of July.

Tourism Score in Ulan

Tourism Score in Ulanbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.47.40.00.0NowNowtemperaturetemperature 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 Ulan for hot-weather activities is from early July to early August, with a peak score in the last week of July.

Beach/Pool Score in Ulan

Beach/Pool Score in UlanJanFebMarAprMayJunJulAugSepOctNovDec002244668810104.44.40.00.0NowNowtemperaturetemperature 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 Ulan typically lasts for 5.5 months (165 days), from around April 24 to around October 6, rarely starting before April 8 or after May 10, and rarely ending before September 19 or after October 23.

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

Time Spent in Various Temperature Bands and the Growing Season in Ulangrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Apr 2450%Apr 2450%Oct 650%Oct 650%May 1090%May 1090%Sep 1990%Sep 1990%Apr 810%Apr 810%Oct 2310%Oct 2310%Jul 15100%Jul 15100%NowNowfrigidfreezingcoolcomfortablewarmcoldvery coldhot
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 Ulan should appear around April 22, only rarely appearing before April 14 or after May 2.

Growing Degree Days in Ulan

Growing Degree Days in UlanJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°FApr 2290°FApr 2290°FJun 25900°FJun 25900°FAug 71,800°FAug 71,800°FDec 312,558°FDec 312,558°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 3.8 months, from April 14 to August 8, with an average daily incident shortwave energy per square meter above 6.4 kWh. The brightest month of the year in Ulan is June, with an average of 7.3 kWh.

The darker period of the year lasts for 3.1 months, from November 3 to February 6, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest month of the year in Ulan is December, with an average of 2.7 kWh.

Average Daily Incident Shortwave Solar Energy in Ulan

Average Daily Incident Shortwave Solar Energy in UlanbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhMay 317.4 kWhMay 317.4 kWhDec 222.6 kWhDec 222.6 kWhApr 146.4 kWhApr 146.4 kWhAug 86.4 kWhAug 86.4 kWhNov 33.6 kWhNov 33.6 kWhFeb 63.6 kWhFeb 63.6 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) 3.03.95.26.47.27.36.96.25.24.23.22.7

For the purposes of this report, the geographical coordinates of Ulan are 39.094 deg latitude, 107.980 deg longitude, and 4,511 ft elevation.

The topography within 2 miles of Ulan contains only modest variations in elevation, with a maximum elevation change of 233 feet and an average elevation above sea level of 4,510 feet. Within 10 miles contains only modest variations in elevation (774 feet). Within 50 miles contains significant variations in elevation (1,617 feet).

The area within 2 miles of Ulan is covered by grassland (42%), bare soil (18%), sparse vegetation (18%), and artificial surfaces (15%), within 10 miles by grassland (72%) and bare soil (12%), and within 50 miles by grassland (74%) and bare soil (12%).

This report illustrates the typical weather in Ulan, 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, Yinchuan Hedong Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Ulan.

At a distance of 167 kilometers from Ulan, 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 Ulan to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 26%, making the weight assigned to the weather station 74%.

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.