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
Jalasjärvi observes a small decrease in the average high-temperature with the arrival of December, falling from November's icy 2°C (35.6°F) to a subzero cold -2°C (28.4°F). Jalasjärvi notes a consistent average low-temperature of -5.2°C (22.6°F) during December nights.Humidity
In December, the average relative humidity is 92%.Rainfall
In Jalasjärvi, during December, the rain falls for 6.7 days and regularly aggregates up to 31mm (1.22") of precipitation. In Jalasjärvi, during the entire year, the rain falls for 135.2 days and collects up to 441mm (17.36") of precipitation.Snowfall
January through May, October through December are months with snowfall in Jalasjärvi. December is the month with the most snowfall. Snow falls for 16.2 days and accumulates 144mm (5.67") of snow.Daylight
With an average of 5h and 12min of daylight, December has the shortest days of the year in Jalasjärvi.On the first day of the month, sunrise is at 09:28 and sunset at 15:08. On the last day of December, sunrise is at 09:57 and sunset at 15:06 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 minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Jalasjärvi?
What is the average humidity in December in Jalasjärvi?
How many days does it rain in December in Jalasjärvi?
What is the snowiest month in Jalasjärvi?
How much does it snow in Jalasjärvi in December?
What is the month with the shortest days in Jalasjärvi?
What is the average length of the day in December in Jalasjärvi?
What time are sunrise and sunset in December in Jalasjärvi?
What is the month with the least sunshine in Jalasjärvi?
How many hours of sunshine does Jalasjärvi have in December?
When is the lowest UV index in Jalasjärvi?
What is the UV index reading in December in Jalasjärvi?
Average temperature in December
Jalasjärvi, Finland
- Average high temperature in December: -2°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (-4.5°C).
- Average low temperature in December: -5.2°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).
Average pressure in December
Jalasjärvi, Finland
- Average pressure in December: 1006mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1006mbar).
Average wind speed in December
Jalasjärvi, Finland
- Average wind speed in December: 12.1km/h
The windiest month (with the highest average wind speed) is December (12.1km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).
Average humidity in December
Jalasjärvi, Finland
- Average humidity in December: 92%
The months with the highest relative humidity are January and February (94%).
The months with the lowest relative humidity are May and June (67%).
Average rainfall in December
Jalasjärvi, Finland
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is August (62mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in December
Jalasjärvi, Finland
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Jalasjärvi, Finland
- Average snowfall in December: 144mm
The month with the highest snowfall is December (144mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Jalasjärvi, Finland
- Average snowfall days in December: 16.2 days
The month with the highest number of snowfall days is December (16.2 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jalasjärvi, Finland
- Average daylight in December: 5h and 1min
The month with the longest days is June (Average daylight: 19h and 48min).
The month with the shortest days is December (Average daylight: 5h and 12min).
- Average sunshine in December: 0h and 5min
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 54min).
Average sunshine days in December
Jalasjärvi, Finland
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is February (15 days).
The month with the least sunshine days is November (10.5 days).
Average UV index in December
Jalasjärvi, 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
Jalasjärvi, Finland
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is June (Cloud cover 43).
Average visibility in December
Jalasjärvi, Finland
- Average visibility in December: 7km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January, February and March (6km).
