December Weather in Xinli China

Daily high temperatures decrease by 7°F, from 31°F to 24°F, rarely falling below 14°F or exceeding 41°F.

Daily low temperatures decrease by 8°F, from 12°F to 3°F, rarely falling below -6°F or exceeding 20°F.

For reference, on July 16, the hottest day of the year, temperatures in Xinli typically range from 62°F to 86°F, while on January 12, the coldest day of the year, they range from 2°F to 23°F.

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.

Aberdeen, United States (6,313 miles away) is the far-away foreign place with temperatures most similar to Xinli (view comparison).

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The month of December in Xinli experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 24% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 23% on December 7.

The clearest day of the month is December 7, with clear, mostly clear, or partly cloudy conditions 77% of the time.

For reference, on April 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 41%, while on December 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.

Over the course of December in Xinli, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 21 minutes of daylight and the longest day is December 1, with 9 hours, 33 minutes of daylight.

The earliest sunrise of the month in Xinli is 7:47 AM on December 1 and the latest sunrise is 19 minutes later at 8:06 AM on December 31.

The earliest sunset is 5:20 PM on December 8 and the latest sunset is 10 minutes later at 5:30 PM on December 31.

Daylight saving time is not observed in Xinli during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:16 AM and sets 15 hours, 0 minutes later, at 8:16 PM, while on December 21, the shortest day of the year, it rises at 8:02 AM and sets 9 hours, 21 minutes later, at 5:23 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for December 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

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 Xinli is essentially constant during December, remaining around 0% throughout.

For reference, on August 2, 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.

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 Xinli is essentially constant during December, remaining within 0.3 miles per hour of 9.9 miles per hour throughout.

For reference, on April 29, the windiest day of the year, the daily average wind speed is 12.5 miles per hour, while on September 4, the calmest day of the year, the daily average wind speed is 8.9 miles per hour.

The hourly average wind direction in Xinli throughout December is predominantly from the west, with a peak proportion of 60% on December 17.

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 Xinli typically lasts for 5.0 months (154 days), from around May 2 to around October 3, rarely starting before April 17 or after May 19, and rarely ending before September 18 or after October 19.

The month of December in Xinli is reliably fully outside of 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 Xinli are essentially constant during December, remaining around 2,763°F throughout.

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 Xinli is essentially constant during December, remaining within 0.1 kWh of 2.6 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 2.5 kWh on December 20.

For the purposes of this report, the geographical coordinates of Xinli are 39.844 deg latitude, 108.735 deg longitude, and 4,469 ft elevation.

The topography within 2 miles of Xinli contains only modest variations in elevation, with a maximum elevation change of 253 feet and an average elevation above sea level of 4,518 feet. Within 10 miles contains only modest variations in elevation (892 feet). Within 50 miles contains very significant variations in elevation (2,014 feet).

The area within 2 miles of Xinli is covered by grassland (58%) and artificial surfaces (19%), within 10 miles by grassland (66%) and bare soil (15%), and within 50 miles by grassland (66%) and bare soil (14%).