December weather forecastSylva, Russia
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Sylva, Russia, with an average temperature varying between -14.2°C (6.4°F) and -9.1°C (15.6°F).Temperature
Sylva's progression into December includes a drop in the average high-temperature, from -3°C (26.6°F) in November to a still subzero cold -9.1°C (15.6°F). December sees the temperature falling to a mean low of -14.2°C (6.4°F).Humidity
The average relative humidity in December is 95%.Rainfall
In Sylva, in December, during 1.5 rainfall days, 25mm (0.98") of precipitation is typically accumulated. Throughout the year, there are 113.1 rainfall days, and 443mm (17.44") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Sylva, Russia, during December, snow falls for 21.4 days and regularly aggregates up to 204mm (8.03") of snow. Throughout the year, there are 126.4 snowfall days, and 1115mm (43.9") of snow is accumulated.Daylight
December has the shortest days of the year in Sylva, with an average of 6h and 36min of daylight.On the first day of December, sunrise is at 09:33 and sunset at 16:30. On the last day of the month, sunrise is at 09:58 and sunset at 16:33 +05.
Sunshine
The average sunshine in December is 1.3h.UV index
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Sylva. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the UV index of 1 transforms into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sylva, Russia
- Average high temperature in December: -9.1°C
The warmest month (with the highest average high temperature) is July (24.1°C).
The month with the lowest average high temperature is January (-11.3°C).
- Average low temperature in December: -14.2°C
The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is January (-17.5°C).
Average pressure in December
Sylva, Russia
- Average pressure in December: 1020.1mbar
The month with the highest atmospheric pressure is February (1022.8mbar).
The month with the lowest atmospheric pressure is July (1010.7mbar).
Average wind speed in December
Sylva, Russia
- Average wind speed in December: 10.2km/h
The windiest month (with the highest average wind speed) is October (11.1km/h).
The calmest month (with the lowest average wind speed) is July (9.1km/h).
Average humidity in December
Sylva, Russia
- Average humidity in December: 95%
The months with the highest relative humidity are January and February (96%).
The month with the lowest relative humidity is May (62%).
Average rainfall in December
Sylva, Russia
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is August (61mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in December
Sylva, Russia
- Average rainfall days in December: 1.5 days
The month with the highest number of rainy days is September (16.2 days).
The months with the least rainy days are January and February (0.7 days).
Average snowfall in December
Sylva, Russia
- Average snowfall in December: 204mm
The month with the highest snowfall is March (213mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Sylva, Russia
- Average snowfall days in December: 21.4 days
The month with the highest number of snowfall days is March (23.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Sylva, Russia
- Average daylight in December: 6h and 36min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in December: 1h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 1h and 0min).
Average sunshine days in December
Sylva, Russia
- Average sunshine days in December: 10.3 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is April (6.8 days).
Average UV index in December
Sylva, Russia
- Average UV index in December: 1
The month with the highest UV index is 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
Sylva, Russia
- Average cloud cover in December: 84
The month with the most cloud cover is March (Cloud cover 86).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Sylva, Russia
- Average visibility in December: 5km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (4km).
