Winter Weather in Mirny Russia

Daily high temperatures increase by 13°F, from -12°F to 1°F, rarely falling below -42°F or exceeding 18°F. The lowest daily average high temperature is -18°F on January 5.

Daily low temperatures increase by 7°F, from -25°F to -18°F, rarely falling below -55°F or exceeding 1°F. The lowest daily average low temperature is -31°F on January 5.

For reference, on July 14, the hottest day of the year, temperatures in Mirny typically range from 54°F to 72°F, while on January 4, the coldest day of the year, they range from -31°F to -18°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.

Yellowknife, Canada (3,447 miles away) is the far-away foreign place with temperatures most similar to Mirny (view comparison).

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The winter in Mirny experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 79% throughout the season. The lowest chance of overcast or mostly cloudy conditions is 76% on January 4.

The clearest day of the winter is January 4, with clear, mostly clear, or partly cloudy conditions 24% of the time.

For reference, on October 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 88%, while on July 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 50%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Mirny, the chance of a wet day over the course of the winter is gradually decreasing, starting the season at 5% and ending it at 3%.

For reference, the year's highest daily chance of a wet day is 32% on June 11, and its lowest chance is 1% on February 10.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during the winter in Mirny is gradually decreasing, starting the season at 1.5 inches, when it rarely exceeds 3.9 inches, and ending the season at 0.8 inches, when it rarely exceeds 2.1 inches or falls below -0.0 inches.

The lowest average 31-day accumulation is 0.4 inches on February 5.

Over the course of the winter in Mirny, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 4 hours, 32 minutes, implying an average daily increase of 3 minutes, 3 seconds, and weekly increase of 21 minutes, 24 seconds.

The shortest day of the winter is December 21, with 4 hours, 55 minutes of daylight and the longest day is February 28, with 10 hours, 11 minutes of daylight.

The latest sunrise of the winter in Mirny is 10:55 AM on December 25 and the earliest sunrise is 2 hours, 24 minutes earlier at 8:31 AM on February 28.

The earliest sunset is 3:48 PM on December 17 and the latest sunset is 2 hours, 54 minutes later at 6:43 PM on February 28.

Daylight saving time is not observed in Mirny during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 3:24 AM and sets 20 hours, 2 minutes later, at 11:26 PM, while on December 21, the shortest day of the year, it rises at 10:54 AM and sets 4 hours, 55 minutes later, at 3:49 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 Mirny is essentially constant during the winter, remaining around 0% throughout.

For reference, on July 15, 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 Mirny is essentially constant during the winter, remaining within 0.2 miles per hour of 7.3 miles per hour throughout.

For reference, on March 22, the windiest day of the year, the daily average wind speed is 7.5 miles per hour, while on July 22, the calmest day of the year, the daily average wind speed is 3.8 miles per hour.

The hourly average wind direction in Mirny throughout the winter is predominantly from the west, with a peak proportion of 66% on January 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 Mirny typically lasts for 3.3 months (103 days), from around May 26 to around September 6, rarely starting before May 10 or after June 12, and rarely ending before August 22 or after September 22.

The winter in Mirny 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 Mirny are very rapidly decreasing during the winter, decreasing by 1,013°F, from 1,013°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 Mirny is increasing during the winter, rising by 1.3 kWh, from 0.2 kWh to 1.4 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 0.1 kWh on December 21.

For the purposes of this report, the geographical coordinates of Mirny are 62.535 deg latitude, 113.961 deg longitude, and 1,053 ft elevation.

The topography within 2 miles of Mirny contains only modest variations in elevation, with a maximum elevation change of 328 feet and an average elevation above sea level of 1,096 feet. Within 10 miles contains only modest variations in elevation (650 feet). Within 50 miles contains significant variations in elevation (1,099 feet).

The area within 2 miles of Mirny is covered by bare soil (37%), grassland (23%), artificial surfaces (22%), and trees (11%), within 10 miles by trees (86%), and within 50 miles by trees (95%).