Average Weather in December in Yonghe China
Daily high temperatures decrease by 6°F, from 62°F to 56°F, rarely falling below 45°F or exceeding 72°F.
Daily low temperatures decrease by 6°F, from 42°F to 36°F, rarely falling below 26°F or exceeding 52°F.
For reference, on July 22, the hottest day of the year, temperatures in Yonghe typically range from 77°F to 91°F, while on January 12, the coldest day of the year, they range from 35°F to 54°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
The month of December in Yonghe experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 30% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 28% on December 18.
The clearest day of the month is December 18, with clear, mostly clear, or partly cloudy conditions 72% of the time.
For reference, on July 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 77%, while on October 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.
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 Yonghe, the chance of a wet day over the course of December is essentially constant, remaining around 16% throughout.
For reference, the year's highest daily chance of a wet day is 51% on March 29, and its lowest chance is 15% on December 17.
Over the course of December in Yonghe, the chance of a day with only rain remains an essentially constant 15% throughout, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.
Probability of Precipitation in December
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during December in Yonghe is gradually decreasing, starting the month at 1.9 inches, when it rarely exceeds 5.0 inches or falls below 0.2 inches, and ending the month at 1.6 inches, when it rarely exceeds 3.6 inches or falls below 0.2 inches.
The lowest average 31-day accumulation is 1.6 inches on December 23.
Average Monthly Rainfall in December
Over the course of December in Yonghe, the length of the day is essentially constant. The shortest day of the month is December 21, with 10 hours, 26 minutes of daylight and the longest day is December 1, with 10 hours, 34 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Yonghe is 6:51 AM on December 1 and the latest sunrise is 17 minutes later at 7:08 AM on December 31.
The earliest sunset is 5:25 PM on December 1 and the latest sunset is 11 minutes later at 5:37 PM on December 31.
Daylight saving time is not observed in Yonghe during 2020.
For reference, on June 20, the longest day of the year, the Sun rises at 5:26 AM and sets 13 hours, 51 minutes later, at 7:16 PM, while on December 21, the shortest day of the year, it rises at 7:04 AM and sets 10 hours, 26 minutes later, at 5:31 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 Yonghe is essentially constant during December, remaining within 1% of 1% throughout.
The lowest chance of a muggy day during December is 0% on December 30.
For reference, on July 12, the muggiest day of the year, there are muggy conditions 100% of the time, while on December 30, 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 Yonghe is essentially constant during December, remaining within 0.1 miles per hour of 7.0 miles per hour throughout.
For reference, on March 26, the windiest day of the year, the daily average wind speed is 7.9 miles per hour, while on August 13, the calmest day of the year, the daily average wind speed is 6.2 miles per hour.
Average Wind Speed in December
The hourly average wind direction in Yonghe throughout December is predominantly from the north, with a peak proportion of 78% on December 5.
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 Yonghe typically lasts for 9.3 months (283 days), from around February 23 to around December 2, rarely starting before February 2 or after March 15, and rarely ending before November 13 or after December 21.
During December in Yonghe, the chance that a given day is within the growing season is very rapidly decreasing falling from 52% to 2% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season 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
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 Yonghe are gradually increasing during December, increasing by 83°F, from 6,109°F to 6,192°F, over the course of the month.
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 Yonghe is essentially constant during December, remaining within 0.1 kWh of 3.3 kWh throughout.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Yonghe are 27.031 deg latitude, 115.015 deg longitude, and 203 ft elevation.
The topography within 2 miles of Yonghe contains significant variations in elevation, with a maximum elevation change of 817 feet and an average elevation above sea level of 218 feet. Within 10 miles contains significant variations in elevation (1,752 feet). Within 50 miles contains very significant variations in elevation (4,209 feet).
The area within 2 miles of Yonghe is covered by cropland (43%), water (22%), and trees (19%), within 10 miles by cropland (42%) and trees (31%), and within 50 miles by trees (65%) and cropland (19%).
This report illustrates the typical weather in Yonghe year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Yonghe 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 Yonghe, 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.