December Weather in Layka China

Daily high temperatures decrease by 8°F, from 42°F to 34°F, rarely falling below 24°F or exceeding 51°F.

Daily low temperatures decrease by 8°F, from 27°F to 19°F, rarely falling below 13°F or exceeding 33°F.

For reference, on July 23, the hottest day of the year, temperatures in Layka typically range from 70°F to 88°F, while on January 11, the coldest day of the year, they range from 18°F to 33°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.

Weston, United States (7,149 miles away) is the far-away foreign place with temperatures most similar to Layka (view comparison).

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The month of December in Layka experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 38% to 48%.

The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 62% of the time.

For reference, on March 23, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 60%, while on August 9, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 88%.

Over the course of December in Layka, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 37 minutes of daylight and the longest day is December 1, with 9 hours, 48 minutes of daylight.

The earliest sunrise of the month in Layka is 9:35 AM on December 1 and the latest sunrise is 18 minutes later at 9:54 AM on December 31.

The earliest sunset is 7:23 PM on December 5 and the latest sunset is 10 minutes later at 7:34 PM on December 31.

Daylight saving time is not observed in Layka during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 7:21 AM and sets 14 hours, 43 minutes later, at 10:04 PM, while on December 21, the shortest day of the year, it rises at 9:50 AM and sets 9 hours, 37 minutes later, at 7:27 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 Layka is essentially constant during December, remaining around 0% throughout.

For reference, on July 19, the muggiest day of the year, there are muggy conditions 0% 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 Layka is essentially constant during December, remaining within 0.1 miles per hour of 5.3 miles per hour throughout.

For reference, on May 20, the windiest day of the year, the daily average wind speed is 8.4 miles per hour, while on December 23, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.

The lowest daily average wind speed during December is 5.2 miles per hour on December 23.

The hourly average wind direction in Layka throughout December is predominantly from the east, with a peak proportion of 50% on December 28.

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 Layka typically lasts for 8.3 months (254 days), from around March 5 to around November 13, rarely starting before February 14 or after March 23, and rarely ending before October 27 or after November 29.

The month of December in Layka is very likely fully outside of the growing season, with the chance that a given day is in the growing season gradually decreasing from 8% to 0% over the course of the month.

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 Layka are essentially constant during December, remaining around 4,334°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 Layka is essentially constant during December, remaining within 0.1 kWh of 2.9 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 2.8 kWh on December 22.

For the purposes of this report, the geographical coordinates of Layka are 37.077 deg latitude, 79.732 deg longitude, and 4,662 ft elevation.

The topography within 2 miles of Layka contains only modest variations in elevation, with a maximum elevation change of 171 feet and an average elevation above sea level of 4,657 feet. Within 10 miles contains only modest variations in elevation (1,867 feet). Within 50 miles contains very significant variations in elevation (13,760 feet).

The area within 2 miles of Layka is covered by cropland (66%) and artificial surfaces (19%), within 10 miles by bare soil (42%) and cropland (37%), and within 50 miles by grassland (41%) and bare soil (40%).