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
December's arrival signals a moderate reduction in the average high-temperature, easing from a cold 1.8°C (35.2°F) in November to a freezing cold -2°C (28.4°F). Rutalahti, during December nights, observes a steady temperature, averaging at -5.2°C (22.6°F).Humidity
The average relative humidity in December is 93%.Rainfall
In Rutalahti, in December, during 7.3 rainfall days, 38mm (1.5") of precipitation is typically accumulated. Throughout the year, there are 125.3 rainfall days, and 390mm (15.35") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. December is the month with the most snowfall. Snow falls for 20 days and accumulates 202mm (7.95") of snow.Daylight
December has the shortest days of the year in Rutalahti, with an average of 5h and 24min of daylight.On the first day of December in Rutalahti, sunrise is at 09:10 and sunset at 15:00. On the last day of the month, sunrise is at 09:39 and sunset at 14:59 EET.
Sunshine
With an average of 0.9h of sunshine, December has the least sunshine of the year in Rutalahti.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Rutalahti. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Rutalahti in December?
What is the average humidity in December in Rutalahti?
How much does it rain in Rutalahti in December?
What is the snowiest month in Rutalahti?
How much does it snow in Rutalahti in December?
What is the month with the shortest days in Rutalahti?
How many hours of daylight does Rutalahti have in December?
When is the sunrise / sunset in December in Rutalahti?
What is the month with the least sunshine in Rutalahti?
How many hours of sunshine does Rutalahti have in December?
When is the lowest UV index in Rutalahti?
What is the UV index reading in December in Rutalahti?
Average temperature in December
Rutalahti, Finland
- Average high temperature in December: -2°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 (-4.9°C).
- Average low temperature in December: -5.2°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 (-9.2°C).
Average pressure in December
Rutalahti, Finland
- Average pressure in December: 1007.8mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in December
Rutalahti, 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 month (with the lowest average wind speed) is July (9.9km/h).
Average humidity in December
Rutalahti, Finland
- Average humidity in December: 93%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall in December
Rutalahti, Finland
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in December
Rutalahti, Finland
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in December
Rutalahti, Finland
- Average snowfall in December: 202mm
The month with the highest snowfall is December (202mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Rutalahti, Finland
- Average snowfall days in December: 20 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Rutalahti, 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 24min).
- Average sunshine in December: 0h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average sunshine days in December
Rutalahti, Finland
- Average sunshine days in December: 8.4 days
The month with the most sunshine days is May (17.5 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in December
Rutalahti, 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
Rutalahti, 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 August (Cloud cover 43).
Average visibility in December
Rutalahti, 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).
