December weather forecastRoosna, Estonia
December
Weather in December
December, the first month of the winter in Roosna, is also a subzero cold month, with an average temperature fluctuating between -3.7°C (25.3°F) and -0.5°C (31.1°F).Temperature
The transition into December involves a small decrease in the average high-temperature, dipping slightly from a cold 3.2°C (37.8°F) in November to a freezing cold -0.5°C (31.1°F). Roosna notes an average temperature descent to a still subzero cold -3.7°C (25.3°F) in December, a small shift from its daytime peak.Humidity
In Roosna, the average relative humidity in December is 92%.Rainfall
In December, in Roosna, the rain falls for 7.9 days. Throughout December, 36mm (1.42") of precipitation is accumulated. Throughout the year, in Roosna, there are 149.2 rainfall days, and 459mm (18.07") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Roosna, during December, snow falls for 17.4 days and regularly aggregates up to 172mm (6.77") of snow. In Roosna, during the entire year, snow falls for 92.1 days and aggregates up to 819mm (32.24") of snow.Daylight
With an average of 6h and 18min of daylight, December has the shortest days of the year in Roosna.On the first day of the month, sunrise is at 08:45 and sunset at 15:25. On the last day of December, in Roosna, sunrise is at 09:10 and sunset at 15:28 EET.
Sunshine
With an average of 1.5h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 1 during December translates into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Roosna, Estonia
- Average high temperature in December: -0.5°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (-3.3°C).
- Average low temperature in December: -3.7°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).
Average pressure in December
Roosna, Estonia
- Average pressure in December: 1009.8mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.8mbar).
Average wind speed in December
Roosna, Estonia
- Average wind speed in December: 14.1km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is May (10.6km/h).
Average humidity in December
Roosna, Estonia
- Average humidity in December: 92%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Roosna, Estonia
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is July (55mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Roosna, Estonia
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Roosna, Estonia
- Average snowfall in December: 172mm
The month with the highest snowfall is February (179mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Roosna, Estonia
- Average snowfall days in December: 17.4 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Roosna, Estonia
- Average daylight in December: 6h and 18min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 1h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in December
Roosna, Estonia
- Average sunshine days in December: 9 days
The month with the most sunshine days is May (15.4 days).
The month with the least sunshine days is December (9 days).
Average UV index in December
Roosna, Estonia
- 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, November and December (UV index 1).
Average cloud cover in December
Roosna, Estonia
- Average cloud cover in December: 82
The month with the most cloud cover is December (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Roosna, Estonia
- Average visibility in December: 7km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (6km).
