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
A subtle change in temperatures is noted as November gives way to December, with average highs reducing from a wintry 2.5°C (36.5°F) to a subzero cold -1.5°C (29.3°F). Nighttime readings during December register a minimal drop from daytime highs, averaging at -5°C (23°F).Humidity
In December, the average relative humidity in Jamijarvi is 93%.Rainfall
In Jamijarvi, in December, during 8 rainfall days, 47mm (1.85") of precipitation is typically accumulated. Throughout the year, there are 144.9 rainfall days, and 493mm (19.41") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 20.3 days and typically aggregates up to 234mm (9.21") of snow.Daylight
December has the shortest days of the year, with an average of 5h and 24min of daylight.On the first day of December in Jamijarvi, sunrise is at 09:21 and sunset at 15:15. On the last day of the month, sunrise is at 09:50 and sunset at 15:14 EET.
Sunshine
The months with the least sunshine in Jamijarvi are January and December, with an average of 1.8h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a daily UV index of 1 turns into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Jamijarvi?
What is the average humidity in December in Jamijarvi?
How much does it rain in Jamijarvi in December?
What is the snowiest month in Jamijarvi?
How many days does it snow in December in Jamijarvi?
What is the month with the shortest days in Jamijarvi?
What is the average length of the day in December in Jamijarvi?
When is the sunrise / sunset in December in Jamijarvi?
What are the months with the least sunshine in Jamijarvi?
How long on average sun shines in December in Jamijarvi?
What is the month with the lowest UV index in Jamijarvi?
What is the UV index reading in December in Jamijarvi?
Average temperature in December
Jamijarvi, Finland
- Average high temperature in December: -1.5°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-4.3°C).
- Average low temperature in December: -5°C
The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in December
Jamijarvi, Finland
- Average pressure in December: 1006.8mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1006.8mbar).
Average wind speed in December
Jamijarvi, Finland
- Average wind speed in December: 13.1km/h
The windiest month (with the highest average wind speed) is December (13.1km/h).
The calmest months (with the lowest average wind speed) are July and August (10.6km/h).
Average humidity in December
Jamijarvi, Finland
- 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 May (67%).
Average rainfall in December
Jamijarvi, Finland
- Average rainfall in December: 47mm
The wettest month (with the highest rainfall) is July (54mm).
The driest months (with the least rainfall) are April and September (34mm).
Average rainfall days in December
Jamijarvi, Finland
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in December
Jamijarvi, Finland
- Average snowfall in December: 234mm
The month with the highest snowfall is December (234mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Jamijarvi, Finland
- Average snowfall days in December: 20.3 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jamijarvi, Finland
- Average daylight in December: 5h and 2min
The month with the longest days is June (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 5h and 24min).
- Average sunshine in December: 1h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 1h and 48min).
Average sunshine days in December
Jamijarvi, Finland
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is May (14.4 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in December
Jamijarvi, Finland
- 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
Jamijarvi, Finland
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are June and July (Cloud cover 44).
Average visibility in December
Jamijarvi, Finland
- 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).
