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
The start of December comes with a small reduction in the average high-temperature, subtly receding from a wintry 1.8°C (35.2°F) in November to a freezing cold -2.1°C (28.2°F). Joroinen records a slight downturn in temperature to an average of -5.1°C (22.8°F) during December nights.Humidity
The average relative humidity in December is 93%.Rainfall
In Joroinen, in December, it is raining for 6.6 days, with typically 42mm (1.65") of accumulated precipitation. In Joroinen, during the entire year, the rain falls for 125.3 days and collects up to 411mm (16.18") of precipitation.Snowfall
Months with snowfall in Joroinen are January through June, September through December. The month with the most snowfall is December, when snow falls for 22.1 days and typically aggregates up to 236mm (9.29") of snow.Daylight
December has the shortest days of the year, with an average of 5h and 18min of daylight.On the first day of December in Joroinen, sunrise is at 09:04 and sunset at 14:51. On the last day of the month, sunrise is at 09:33 and sunset at 14:49 EET.
Sunshine
The month with the least sunshine is December, with an average of 0.7h 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 in Joroinen. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
How cold is December in Joroinen?
What is the average humidity in December in Joroinen?
How much does it rain in Joroinen in December?
What is the snowiest month in Joroinen?
How many days does it snow in December in Joroinen?
What is the month with the shortest days in Joroinen?
How many hours of daylight does Joroinen have in December?
When are sunrise and sunset in December in Joroinen?
What is the month with the least sunshine in Joroinen?
How many hours of sunshine does Joroinen have in December?
What are the months with the lowest UV index in Joroinen?
What is the UV index reading in December in Joroinen?
Average temperature in December
Joroinen, Finland
- Average high temperature in December: -2.1°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (-5.3°C).
- Average low temperature in December: -5.1°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-9.2°C).
Average pressure in December
Joroinen, Finland
- Average pressure in December: 1008.5mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in December
Joroinen, Finland
- Average wind speed in December: 12.9km/h
The windiest month (with the highest average wind speed) is December (12.9km/h).
The calmest months (with the lowest average wind speed) are July and August (10.1km/h).
Average humidity in December
Joroinen, Finland
- Average humidity in December: 93%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (66%).
Average rainfall in December
Joroinen, Finland
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is July (44mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Joroinen, Finland
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Joroinen, Finland
- Average snowfall in December: 236mm
The month with the highest snowfall is December (236mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Joroinen, Finland
- Average snowfall days in December: 22.1 days
The month with the highest number of snowfall days is January (24.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Joroinen, Finland
- Average daylight in December: 5h and 2min
The month with the longest days is June (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 5h and 18min).
- Average sunshine in December: 0h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).
Average sunshine days in December
Joroinen, Finland
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is May (16 days).
The month with the least sunshine days is December (6.5 days).
Average UV index in December
Joroinen, 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
Joroinen, Finland
- Average cloud cover in December: 81
The months with the most cloud cover are January and February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in December
Joroinen, 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 (5km).
Joroinen, Finland
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