Average Weather in December in Chicheng China
Daily high temperatures decrease by 7°F, from 32°F to 25°F, rarely falling below 14°F or exceeding 42°F.
Daily low temperatures decrease by 7°F, from 15°F to 8°F, rarely falling below -0°F or exceeding 23°F.
For reference, on July 27, the hottest day of the year, temperatures in Chicheng typically range from 63°F to 79°F, while on January 15, the coldest day of the year, they range from 7°F to 24°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
The month of December in Chicheng experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 23% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 23% on December 28.
The clearest day of the month is December 28, with clear, mostly clear, or partly cloudy conditions 77% of the time.
For reference, on June 17, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on December 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.
Cloud Cover Categories in December
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Chicheng, the chance of a wet day over the course of December is essentially constant, remaining around 1% throughout.
For reference, the year's highest daily chance of a wet day is 36% on July 27, and its lowest chance is 0% on December 13.
Probability of Precipitation in December
Over the course of December in Chicheng, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 14 minutes of daylight and the longest day is December 1, with 9 hours, 28 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Chicheng is 7:21 AM on December 1 and the latest sunrise is 19 minutes later at 7:41 AM on December 31.
The earliest sunset is 4:48 PM on December 7 and the latest sunset is 10 minutes later at 4:58 PM on December 31.
Daylight saving time is not observed in Chicheng during 2020.
For reference, on June 20, the longest day of the year, the Sun rises at 4:44 AM and sets 15 hours, 7 minutes later, at 7:51 PM, while on December 21, the shortest day of the year, it rises at 7:37 AM and sets 9 hours, 14 minutes later, at 4:51 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 Chicheng is essentially constant during December, remaining around 0% throughout.
For reference, on July 30, the muggiest day of the year, there are muggy conditions 31% 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 Chicheng is essentially constant during December, remaining within 0.3 miles per hour of 10.0 miles per hour throughout.
For reference, on December 24, the windiest day of the year, the daily average wind speed is 10.4 miles per hour, while on August 14, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.
The highest daily average wind speed during December is 10.4 miles per hour on December 24.
Average Wind Speed in December
The hourly average wind direction in Chicheng throughout December is predominantly from the north, with a peak proportion of 55% on December 28.
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 Chicheng typically lasts for 5.8 months (175 days), from around April 18 to around October 11, rarely starting before March 31 or after May 8, and rarely ending before September 24 or after October 27.
The month of December in Chicheng 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 Chicheng are essentially constant during December, remaining around 2,443°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 Chicheng is essentially constant during December, remaining within 0.1 kWh of 2.5 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 2.4 kWh on December 21.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Chicheng are 40.867 deg latitude, 115.833 deg longitude, and 3,117 ft elevation.
The topography within 2 miles of Chicheng contains very significant variations in elevation, with a maximum elevation change of 1,355 feet and an average elevation above sea level of 3,054 feet. Within 10 miles contains very significant variations in elevation (3,248 feet). Within 50 miles contains large variations in elevation (7,313 feet).
The area within 2 miles of Chicheng is covered by cropland (66%), trees (20%), and grassland (13%), within 10 miles by cropland (36%) and trees (32%), and within 50 miles by trees (50%) and cropland (28%).
This report illustrates the typical weather in Chicheng 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, Beijing Capital International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Chicheng.
At a distance of 108 kilometers from Chicheng, 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 Chicheng 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.
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 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.