Winter Weather in Cheren China

Daily high temperatures are around 39°F, rarely falling below 29°F or exceeding 48°F. The lowest daily average high temperature is 36°F on January 7.

Daily low temperatures are around 12°F, rarely falling below 3°F or exceeding 22°F. The lowest daily average low temperature is 9°F on January 19.

For reference, on June 24, the hottest day of the year, temperatures in Cheren typically range from 43°F to 69°F, while on January 17, the coldest day of the year, they range from 9°F to 36°F.

The figure below shows you a compact characterization of the hourly average winter temperatures. 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.

Angel Fire, United States (7,833 miles away) is the far-away foreign place with temperatures most similar to Cheren (view comparison).

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The winter in Cheren experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 12% to 23%.

The clearest day of the winter is December 1, with clear, mostly clear, or partly cloudy conditions 88% of the time.

For reference, on August 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 77%, while on November 4, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.

Over the course of the winter in Cheren, the length of the day is rapidly increasing. From the start to the end of the season, the length of the day increases by 1 hour, 6 minutes, implying an average daily increase of 45 seconds, and weekly increase of 5 minutes, 14 seconds.

The shortest day of the winter is December 21, with 10 hours, 18 minutes of daylight and the longest day is February 28, with 11 hours, 33 minutes of daylight.

The latest sunrise of the winter in Cheren is 6:55 AM on January 10 and the earliest sunrise is 28 minutes earlier at 6:27 AM on February 28.

The earliest sunset is 5:03 PM on December 1 and the latest sunset is 57 minutes later at 6:00 PM on February 28.

Daylight saving time is not observed in Cheren during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:03 AM and sets 13 hours, 59 minutes later, at 7:02 PM, while on December 21, the shortest day of the year, it rises at 6:50 AM and sets 10 hours, 18 minutes later, at 5:08 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 the winter of 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 Cheren is essentially constant during the winter, remaining around 0% throughout.

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 Cheren is rapidly increasing during the winter, increasing from 8.2 miles per hour to 11.4 miles per hour over the course of the season.

For reference, on February 27, the windiest day of the year, the daily average wind speed is 11.4 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 5.7 miles per hour.

The highest daily average wind speed during the winter is 11.4 miles per hour on February 28.

The hourly average wind direction in Cheren throughout the winter is predominantly from the west, with a peak proportion of 73% on February 25.

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 Cheren typically lasts for 4.1 months (126 days), from around May 24 to around September 28, rarely starting before May 7 or after June 12, and rarely ending before September 12 or after October 13.

The winter in Cheren 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 Cheren are rapidly decreasing during the winter, decreasing by 826°F, from 826°F to 0°F, over the course of the season.

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 Cheren is rapidly increasing during the winter, rising by 1.5 kWh, from 4.9 kWh to 6.4 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 4.6 kWh on December 24.

For the purposes of this report, the geographical coordinates of Cheren are 28.862 deg latitude, 89.697 deg longitude, and 13,478 ft elevation.

The topography within 2 miles of Cheren contains large variations in elevation, with a maximum elevation change of 2,169 feet and an average elevation above sea level of 13,715 feet. Within 10 miles contains large variations in elevation (5,374 feet). Within 50 miles also contains extreme variations in elevation (11,591 feet).

The area within 2 miles of Cheren is covered by grassland (93%), within 10 miles by grassland (94%), and within 50 miles by grassland (91%).