Average Weather in December in Ke’erlun China
Daily high temperatures decrease by 9°F, from 16°F to 7°F, rarely falling below -3°F or exceeding 26°F.
Daily low temperatures decrease by 9°F, from 0°F to -9°F, rarely falling below -20°F or exceeding 10°F.
For reference, on July 20, the hottest day of the year, temperatures in Ke’erlun typically range from 61°F to 84°F, while on January 18, the coldest day of the year, they range from -11°F to 6°F.
Average High and Low Temperature in December
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
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
Fort McMurray, Canada (4,704 miles away); Nipawin, Canada (5,049 miles); and Red Lake, Canada (5,368 miles) are the far-away foreign places with temperatures most similar to Ke’erlun (view comparison).
The month of December in Ke’erlun experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 45% throughout the month. The highest chance of overcast or mostly cloudy conditions is 47% on December 21.
The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 57% of the time.
For reference, on December 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 47%, while on September 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 65%.
Cloud Cover Categories in December
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
Over the course of December in Ke’erlun, the length of the day is essentially constant. The shortest day of the month is December 21, with 8 hours, 21 minutes of daylight and the longest day is December 1, with 8 hours, 39 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Ke’erlun is 7:45 AM on December 1 and the latest sunrise is 21 minutes later at 8:07 AM on December 31.
The earliest sunset is 4:22 PM on December 10 and the latest sunset is 10 minutes later at 4:32 PM on December 31.
Daylight saving time is not observed in Ke’erlun during 2020.
For reference, on June 20, the longest day of the year, the Sun rises at 4:16 AM and sets 16 hours, 4 minutes later, at 8:20 PM, while on December 21, the shortest day of the year, it rises at 8:04 AM and sets 8 hours, 21 minutes later, at 4:25 PM.
Sunrise & Sunset with Twilight in December
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 Ke’erlun is essentially constant during December, remaining around 0% throughout.
For reference, on July 27, the muggiest day of the year, there are muggy conditions 1% of the time, while on January 1, 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
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 Ke’erlun is essentially constant during December, remaining within 0.3 miles per hour of 10.3 miles per hour throughout.
For reference, on April 19, the windiest day of the year, the daily average wind speed is 12.8 miles per hour, while on July 22, the calmest day of the year, the daily average wind speed is 8.1 miles per hour.
The highest daily average wind speed during December is 10.5 miles per hour on December 10.
Average Wind Speed in December
The hourly average wind direction in Ke’erlun throughout December is predominantly from the west, with a peak proportion of 57% on December 3.
Wind Direction in December
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 Ke’erlun typically lasts for 4.4 months (135 days), from around May 9 to around September 21, rarely starting before April 25 or after May 23, and rarely ending before September 6 or after October 6.
The month of December in Ke’erlun is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in December
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 Ke’erlun are essentially constant during December, remaining around 2,225°F throughout.
Growing Degree Days in December
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 Ke’erlun is essentially constant during December, remaining within 0.1 kWh of 1.4 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 1.3 kWh on December 21.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Ke’erlun are 48.164 deg latitude, 115.857 deg longitude, and 2,054 ft elevation.
The topography within 2 miles of Ke’erlun contains only modest variations in elevation, with a maximum elevation change of 387 feet and an average elevation above sea level of 2,062 feet. Within 10 miles contains only modest variations in elevation (951 feet). Within 50 miles also contains very significant variations in elevation (1,690 feet).
The area within 2 miles of Ke’erlun is covered by grassland (89%), within 10 miles by grassland (90%), and within 50 miles by grassland (42%) and sparse vegetation (24%).
This report illustrates the typical weather in Ke’erlun year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Ke’erlun is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.
The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Ke’erlun, according to the International Standard Atmosphere .
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.
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.
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.