December weather forecastKatyn', Russia
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Katyn', Russia, with temperature in the range of an average low of -5.6°C (21.9°F) and an average high of -2°C (28.4°F).Temperature
December signifies a gentle decline in Katyn''s average high-temperature, easing from a cold 2.6°C (36.7°F) in November to a subzero cold -2°C (28.4°F). Katyn' records a negligible downturn from daytime temperatures, averaging a low of -5.6°C (21.9°F) in the month of December.Humidity
The average relative humidity in December is 93%.Rainfall
In December, the rain falls for 8.9 days. Throughout December, 45mm (1.77") of precipitation is accumulated. In Katyn', during the entire year, the rain falls for 149.1 days and collects up to 522mm (20.55") of precipitation.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 21.9 days and accumulates 215mm (8.46") of snow.Daylight
With an average of 7h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:53 and sunset at 16:31. On the last day of December, sunrise is at 09:16 and sunset at 16:36 MSK.
Sunshine
December has the least sunshine of the year, with an average of 1.3h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Katyn'. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 1 in December translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Katyn', Russia
- Average high temperature in December: -2°C
The warmest month (with the highest average high temperature) is July (22.8°C).
The month with the lowest average high temperature is January (-5.2°C).
- Average low temperature in December: -5.6°C
The month with the highest average low temperature is July (13.2°C).
The coldest month (with the lowest average low temperature) is January (-9.7°C).
Average pressure in December
Katyn', Russia
- Average pressure in December: 1015.8mbar
The month with the highest atmospheric pressure is October (1018.7mbar).
The month with the lowest atmospheric pressure is July (1012.4mbar).
Average wind speed in December
Katyn', Russia
- Average wind speed in December: 16.8km/h
The windiest month (with the highest average wind speed) is December (16.8km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in December
Katyn', Russia
- Average humidity in December: 93%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Katyn', Russia
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is May (68mm).
The driest month (with the least rainfall) is September (30mm).
Average rainfall days in December
Katyn', Russia
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in December
Katyn', Russia
- Average snowfall in December: 215mm
The month with the highest snowfall is December (215mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Katyn', Russia
- Average snowfall days in December: 21.9 days
The month with the highest number of snowfall days is January (23.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Katyn', Russia
- Average daylight in December: 7h and 18min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in December: 1h and 18min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in December
Katyn', Russia
- Average sunshine days in December: 5.7 days
The month with the most sunshine days is August (15.1 days).
The month with the least sunshine days is December (5.7 days).
Average UV index in December
Katyn', Russia
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in December
Katyn', Russia
- Average cloud cover in December: 83
The months with the most cloud cover are January, February and December (Cloud cover 83).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Katyn', Russia
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March and December (7km).





