Average Weather in January in Xicun China
Daily high temperatures increase by 3°F, from 30°F to 33°F, rarely falling below 19°F or exceeding 43°F. The lowest daily average high temperature is 29°F on January 11.
Daily low temperatures increase by 2°F, from 8°F to 10°F, rarely falling below -2°F or exceeding 19°F. The lowest daily average low temperature is 7°F on January 13.
For reference, on July 11, the hottest day of the year, temperatures in Xicun typically range from 63°F to 83°F, while on January 13, the coldest day of the year, they range from 7°F to 30°F.
Average High and Low Temperature in January
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. 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 January
The month of January in Xicun experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 24% to 29%.
The clearest day of the month is January 1, with clear, mostly clear, or partly cloudy conditions 76% of the time.
For reference, on June 18, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 43%, while on December 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.
Cloud Cover Categories in January
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Xicun, the chance of a wet day over the course of January is essentially constant, remaining around 1% throughout.
For reference, the year's highest daily chance of a wet day is 37% on July 31, and its lowest chance is 1% on January 1.
Probability of Precipitation in January
Over the course of January in Xicun, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 43 minutes, implying an average daily increase of 1 minute, 25 seconds, and weekly increase of 9 minutes, 58 seconds.
The shortest day of the month is January 1, with 9 hours, 28 minutes of daylight and the longest day is January 31, with 10 hours, 11 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Xicun is 7:47 AM on January 5 and the earliest sunrise is 12 minutes earlier at 7:35 AM on January 31.
The earliest sunset is 5:15 PM on January 1 and the latest sunset is 31 minutes later at 5:46 PM on January 31.
Daylight saving time is not observed in Xicun during 2018.
For reference, on June 21, the longest day of the year, the Sun rises at 5:01 AM and sets 14 hours, 56 minutes later, at 7:57 PM, while on December 21, the shortest day of the year, it rises at 7:43 AM and sets 9 hours, 25 minutes later, at 5:07 PM.
Sunrise & Sunset with Twilight in January
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 Xicun is essentially constant during January, remaining around 0% throughout.
For reference, on July 31, the muggiest day of the year, there are muggy conditions 23% of the time, while on October 3, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in January
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 Xicun is essentially constant during January, remaining within 0.1 miles per hour of 7.2 miles per hour throughout.
For reference, on April 20, the windiest day of the year, the daily average wind speed is 9.4 miles per hour, while on August 17, the calmest day of the year, the daily average wind speed is 5.5 miles per hour.
The lowest daily average wind speed during January is 7.1 miles per hour on January 19.
Average Wind Speed in January
Wind Direction in January
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 Xicun typically lasts for 5.6 months (171 days), from around April 23 to around October 12, rarely starting before April 6 or after May 10, and rarely ending before September 24 or after October 29.
The month of January in Xicun is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in January
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 Xicun are essentially constant during January, remaining around 0°F throughout.
Growing Degree Days in January
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 Xicun is gradually increasing during January, rising by 0.7 kWh, from 2.6 kWh to 3.3 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Xicun are 39.151 deg latitude, 113.115 deg longitude, and 2,969 ft elevation.
The topography within 2 miles of Xicun contains only modest variations in elevation, with a maximum elevation change of 302 feet and an average elevation above sea level of 2,956 feet. Within 10 miles contains only modest variations in elevation (5,171 feet). Within 50 miles also contains extreme variations in elevation (8,510 feet).
The area within 2 miles of Xicun is covered by cropland (56%) and trees (27%), within 10 miles by grassland (51%) and cropland (32%), and within 50 miles by grassland (40%) and cropland (31%).
This report illustrates the typical weather in Xicun 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, Shijiazhuang Zhengding International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Xicun.
At a distance of 168 kilometers from Xicun, 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 Xicun to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 27%, making the weight assigned to the weather station 73%.
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.
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.