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
Weather in December
Temperature
Reisjärvi's December weather shows a modest shift in high-temperatures, falling from November's wintry 0.8°C (33.4°F) to a subzero cold -3.2°C (26.2°F). The temperature during December sees a subtle transition from day to night, averaging a low of -6.6°C (20.1°F).Humidity
In Reisjärvi, the average relative humidity in December is 94%.Rainfall
In Reisjärvi, in December, it is raining for 5.7 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 118.8 rainfall days, and 391mm (15.39") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Reisjärvi is December, when snow falls for 21.5 days and typically aggregates up to 200mm (7.87") of snow.Daylight
The month with the shortest days is December, with an average of 4h and 42min of daylight.On the first day of the month, sunrise is at 09:32 and sunset at 14:46. On the last day of December, in Reisjärvi, sunrise is at 10:03 and sunset at 14:42 EET.
Sunshine
The month with the least sunshine is December, 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 average individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
How cold is December in Reisjärvi?
What is the average humidity in December in Reisjärvi?
How much does it rain in Reisjärvi in December?
When does it snow the most in Reisjärvi?
How many days does it snow in December in Reisjärvi?
What is the month with the shortest days in Reisjärvi?
How many hours of daylight does Reisjärvi have in December?
What time are sunrise and sunset in December in Reisjärvi?
What is the month with the least sunshine in Reisjärvi?
How many hours of sunshine does Reisjärvi have in December?
What are the months with the lowest UV index in Reisjärvi?
What is the UV index reading in December in Reisjärvi?
Average temperature in December
Reisjärvi, Finland
- Average high temperature in December: -3.2°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in December: -6.6°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is January (-10°C).
Average pressure in December
Reisjärvi, Finland
- Average pressure in December: 1006mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1006mbar).
Average wind speed in December
Reisjärvi, Finland
- Average wind speed in December: 11.5km/h
The windiest month (with the highest average wind speed) is December (11.5km/h).
The calmest month (with the lowest average wind speed) is July (8.9km/h).
Average humidity in December
Reisjärvi, Finland
- Average humidity in December: 94%
The month with the highest relative humidity is January (96%).
The month with the lowest relative humidity is June (67%).
Average rainfall in December
Reisjärvi, Finland
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Reisjärvi, Finland
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Reisjärvi, Finland
- Average snowfall in December: 200mm
The month with the highest snowfall is December (200mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Reisjärvi, Finland
- Average snowfall days in December: 21.5 days
The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Reisjärvi, Finland
- Average daylight in December: 4h and 4min
The month with the longest days is June (Average daylight: 20h and 30min).
The month with the shortest days is December (Average daylight: 4h and 42min).
- Average sunshine in December: 0h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average sunshine days in December
Reisjärvi, Finland
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in December
Reisjärvi, 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
Reisjärvi, Finland
- Average cloud cover in December: 79
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in December
Reisjärvi, Finland
- Average visibility in December: 6km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (5km).
Reisjärvi, Finland
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