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  5. December

Average Weather in December in Yinchuan China

Daily high temperatures decrease by 7°F, from 37°F to 30°F, rarely falling below 20°F or exceeding 45°F.

Daily low temperatures decrease by 10°F, from 20°F to 11°F, rarely falling below 3°F or exceeding 26°F.

For reference, on July 20, the hottest day of the year, temperatures in Yinchuan typically range from 67°F to 85°F, while on January 12, the coldest day of the year, they range from 9°F to 29°F.

Average High and Low Temperature in December

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.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. The horizontal axis is the day, 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 December

Average Hourly Temperature in December in Yinchuan18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM4 AM8 AM12 PM4 PM8 PM12 AMNovJanfrigidfreezingvery coldcold
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.

Sergeant Bluff, Iowa, United States (6,678 miles away) is the far-away foreign place with temperatures most similar to Yinchuan (view comparison).

Clouds

The month of December in Yinchuan experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 26% throughout the month.

The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 75% of the time.

For reference, on May 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 44%, while on November 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 76%.

Cloud Cover Categories in December

Cloud Cover Categories in December in Yinchuan1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanDec 175%Dec 175%Dec 3173%Dec 3173%Dec 1174%Dec 1174%Dec 2174%Dec 2174%clearmostly 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.

Precipitation

Sun

Over the course of December in Yinchuan, the length of the day is essentially constant. The shortest day of the month is December 22, with 9 hours, 29 minutes of daylight and the longest day is December 1, with 9 hours, 42 minutes of daylight.

Hours of Daylight and Twilight in December

Hours of Daylight and Twilight in December in Yinchuan1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 229 hr, 29 minDec 229 hr, 29 minnightnightdaydayDec 19 hr, 42 minDec 19 hr, 42 min
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.

The earliest sunrise of the month in Yinchuan is 7:52 AM on December 1 and the latest sunrise is 19 minutes later at 8:12 AM on December 31.

The earliest sunset is 5:33 PM on December 7 and the latest sunset is 10 minutes later at 5:43 PM on December 31.

Daylight saving time is not observed in Yinchuan during 2018.

For reference, on June 21, the longest day of the year, the Sun rises at 5:31 AM and sets 14 hours, 51 minutes later, at 8:22 PM, while on December 21, the shortest day of the year, it rises at 8:08 AM and sets 9 hours, 29 minutes later, at 5:37 PM.

Sunrise & Sunset with Twilight in December

The solar day over the course of December. 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.

Humidity

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 chance that a given day will be muggy in Yinchuan is essentially constant during December, remaining around 0% throughout.

For reference, on July 29, the muggiest day of the year, there are muggy conditions 15% of the time, while on October 6, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in December

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.

Wind

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 Yinchuan is essentially constant during December, remaining within 0.2 miles per hour of 7.5 miles per hour throughout.

For reference, on April 26, the windiest day of the year, the daily average wind speed is 9.9 miles per hour, while on January 23, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.

Average Wind Speed in December

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The hourly average wind direction in Yinchuan throughout December is predominantly from the west, with a peak proportion of 54% on December 27.

Wind Direction in December

Wind Direction in December in Yinchuan1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJanwesteastnorthsouth
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).

Growing Season

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 Yinchuan typically lasts for 6.5 months (198 days), from around April 8 to around October 23, rarely starting before March 20 or after April 26, and rarely ending before October 8 or after November 6.

The month of December in Yinchuan is reliably fully outside of the growing season.

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

Time Spent in Various Temperature Bands and the Growing Season in December in Yinchuan1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJan-0%Dec 16-0%Dec 16Nov 610%Nov 610%frigidfreezingvery coldcoldcool
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.

The average accumulated growing degree days in Yinchuan are essentially constant during December, remaining around 3,339°F throughout.

Growing Degree Days in December

The average growing degree days accumulated over the course of December, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 in Yinchuan is essentially constant during December, remaining within 0.1 kWh of 2.8 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 2.7 kWh on December 24.

Average Daily Incident Shortwave Solar Energy in December

Average Daily Incident Shortwave Solar Energy in December in Yinchuan1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 kWh0.5 kWh1.0 kWh1.5 kWh2.0 kWh2.5 kWh3.0 kWh3.5 kWh4.0 kWh4.5 kWhNovJanDec 242.7 kWhDec 242.7 kWhDec 12.9 kWhDec 12.9 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Yinchuan are 38.468 deg latitude, 106.273 deg longitude, and 3,645 ft elevation.

The topography within 2 miles of Yinchuan is essentially flat, with a maximum elevation change of 79 feet and an average elevation above sea level of 3,649 feet. Within 10 miles is essentially flat (177 feet). Within 50 miles contains only modest variations in elevation (8,110 feet).

The area within 2 miles of Yinchuan is covered by artificial surfaces (83%), within 10 miles by cropland (45%) and artificial surfaces (14%), and within 50 miles by grassland (52%) and cropland (15%).

Data Sources

This report illustrates the typical weather in Yinchuan year round, 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 Yinchuan.

At a distance of 5 kilometers from Yinchuan, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Yinchuan according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.