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
As November transitions into December, Alatornio sees a gentle drop in the average high-temperature, transitioning from an icy 0.8°C (33.4°F) to a subzero cold -2.8°C (27°F). Alatornio registers a steady nighttime temperature averaging -6.3°C (20.7°F) throughout December.Humidity
In December, the average relative humidity in Alatornio is 91%.Rainfall
The month with the most rainfall in Alatornio is December, when the rain falls for 6.3 days and typically aggregates up to 42mm (1.65") of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Alatornio, in December, during 16.6 snowfall days, 176mm (6.93") of snow is typically accumulated. In Alatornio, during the entire year, snow falls for 89.7 days and aggregates up to 919mm (36.18") of snow.Daylight
With an average of 3h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 10:08 and sunset at 14:16. On the last day of December, in Alatornio, Finland, sunrise is at 10:47 and sunset at 14:05 EET.
Sunshine
December has the least sunshine of the year, with an average of 1.2h 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 estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
How cold is it in Alatornio in December?
What is the average humidity in December in Alatornio?
What is the wettest month in Alatornio?
How much does it rain in Alatornio in December?
How many days does it snow in December in Alatornio?
What is the month with the shortest days in Alatornio?
What is the average length of the day in December in Alatornio?
What time are sunrise and sunset in December in Alatornio?
What is the month with the least sunshine in Alatornio?
How many hours of sunshine does Alatornio have in December?
What are the months with the lowest UV index in Alatornio?
How high is the UV index in December in Alatornio?
Average temperature in December
Alatornio, Finland
- Average high temperature in December: -2.8°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in December: -6.3°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-10.9°C).
Average pressure in December
Alatornio, Finland
- Average pressure in December: 1004.9mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in December
Alatornio, Finland
- Average wind speed in December: 16.3km/h
The windiest months (with the highest average wind speed) are November and December (16.3km/h).
The calmest month (with the lowest average wind speed) is April (12km/h).
Average humidity in December
Alatornio, Finland
- Average humidity in December: 91%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (70%).
Average rainfall in December
Alatornio, Finland
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Alatornio, Finland
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Alatornio, Finland
- Average snowfall in December: 176mm
The month with the highest snowfall is March (203mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Alatornio, Finland
- Average snowfall days in December: 16.6 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Alatornio, Finland
- Average daylight in December: 3h and 2min
The month with the longest days is July (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in December: 1h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in December
Alatornio, Finland
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Alatornio, 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
Alatornio, Finland
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Alatornio, Finland
- Average visibility in December: 8km
The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is January (6km).
Alatornio, Finland
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