December Weather in Dzöölön Mongolia

Daily high temperatures decrease by 7°F, from 11°F to 4°F, rarely falling below -7°F or exceeding 20°F.

Daily low temperatures decrease by 7°F, from -7°F to -14°F, rarely falling below -26°F or exceeding 3°F.

For reference, on July 13, the hottest day of the year, temperatures in Dzöölön typically range from 50°F to 69°F, while on January 19, the coldest day of the year, they range from -17°F to 4°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.

Watson Lake, Canada (4,302 miles away) is the far-away foreign place with temperatures most similar to Dzöölön (view comparison).

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The month of December in Dzöölön experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 44% to 40%.

The clearest day of the month is December 29, with clear, mostly clear, or partly cloudy conditions 61% of the time.

For reference, on June 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 51%, while on January 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 65%.

Over the course of December in Dzöölön, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 16 minutes, implying an average daily decrease of 31 seconds, and weekly decrease of 3 minutes, 39 seconds.

The shortest day of the month is December 21, with 7 hours, 54 minutes of daylight and the longest day is December 1, with 8 hours, 14 minutes of daylight.

The earliest sunrise of the month in Dzöölön is 9:03 AM on December 1 and the latest sunrise is 22 minutes later at 9:25 AM on December 30.

The earliest sunset is 5:14 PM on December 12 and the latest sunset is 10 minutes later at 5:23 PM on December 31.

Daylight saving time is not observed in Dzöölön during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:05 AM and sets 16 hours, 34 minutes later, at 9:40 PM, while on December 21, the shortest day of the year, it rises at 9:22 AM and sets 7 hours, 54 minutes later, at 5:16 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 Dzöölön is essentially constant during December, 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 Dzöölön is gradually decreasing during December, decreasing from 8.2 miles per hour to 7.6 miles per hour over the course of the month.

For reference, on April 18, the windiest day of the year, the daily average wind speed is 10.2 miles per hour, while on August 4, the calmest day of the year, the daily average wind speed is 6.3 miles per hour.

The hourly average wind direction in Dzöölön throughout December is predominantly from the west, with a peak proportion of 89% on December 8.

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 Dzöölön typically lasts for 3.1 months (95 days), from around May 31 to around September 4, rarely starting before May 15 or after June 19, and rarely ending before August 18 or after September 20.

The month of December in Dzöölön 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 Dzöölön are essentially constant during December, remaining around 885°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 Dzöölön is essentially constant during December, remaining within 0.1 kWh of 1.2 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 1.1 kWh on December 20.

For the purposes of this report, the geographical coordinates of Dzöölön are 51.107 deg latitude, 99.672 deg longitude, and 5,187 ft elevation.

The topography within 2 miles of Dzöölön contains only modest variations in elevation, with a maximum elevation change of 354 feet and an average elevation above sea level of 5,193 feet. Within 10 miles contains only modest variations in elevation (2,470 feet). Within 50 miles contains large variations in elevation (6,158 feet).

The area within 2 miles of Dzöölön is covered by grassland (68%), trees (15%), and shrubs (11%), within 10 miles by grassland (47%) and sparse vegetation (19%), and within 50 miles by grassland (37%) and water (19%).