Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The beginning of December subtly marks a decrease in the average high-temperature, transitioning from an icy 1.3°C (34.3°F) in November to a freezing cold -2.9°C (26.8°F). Tervo records a slight downturn in temperature to an average of -6.2°C (20.8°F) during December nights.Humidity
The average relative humidity in December is 93%.Rainfall
In December, the rain falls for 4.6 days. Throughout December, 30mm (1.18") of precipitation is accumulated. In Tervo, Finland, during the entire year, the rain falls for 83.1 days and collects up to 298mm (11.73") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Tervo, in December, snow falls for 16.8 days, with typically accumulated 168mm (6.61") of snow. Throughout the year, in Tervo, there are 89.6 snowfall days, and 819mm (32.24") of snow is accumulated.Daylight
With an average of 5h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 09:17 and sunset at 14:46. On the last day of December, sunrise is at 09:47 and sunset at 14:44 EET.
Sunshine
December has the least sunshine of the year, with an average of 0.9h of sunshine.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 low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Tervo have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Tervo, Finland
- Average high temperature in December: -2.9°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in December: -6.2°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-9.9°C).
Average pressure in December
Tervo, Finland
- Average pressure in December: 1007.2mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1007.2mbar).
Average wind speed in December
Tervo, Finland
- Average wind speed in December: 13.9km/h
The windiest month (with the highest average wind speed) is December (13.9km/h).
The calmest month (with the lowest average wind speed) is July (10.3km/h).
Average humidity in December
Tervo, Finland
- Average humidity in December: 93%
The months with the highest relative humidity are January and February (95%).
The months with the lowest relative humidity are May and June (68%).
Average rainfall in December
Tervo, Finland
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is July (39mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Tervo, Finland
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Tervo, Finland
- Average snowfall in December: 168mm
The month with the highest snowfall is January (198mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Tervo, Finland
- Average snowfall days in December: 16.8 days
The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Tervo, Finland
- Average daylight in December: 5h and 0min
The month with the longest days is June (Average daylight: 20h and 6min).
The month with the shortest days is December (Average daylight: 5h and 0min).
- Average sunshine in December: 0h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average sunshine days in December
Tervo, Finland
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is October (22.4 days).
The month with the least sunshine days is January (9.3 days).
Average UV index in December
Tervo, Finland
- 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, November and December (UV index 1).
Average cloud cover in December
Tervo, Finland
- Average cloud cover in December: 79
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 44).
Average visibility in December
Tervo, Finland
- Average visibility in December: 7km
The month with the highest visibility is June (10km).
The month with the lowest visibility is January (5km).
