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
With the arrival of December, Alahärmä experiences a modest decline in average high-temperatures, transitioning from a wintry 2°C (35.6°F) in November to a subzero cold -2°C (28.4°F). Alahärmä registers a steady nighttime temperature averaging a still freezing cold -5.2°C (22.6°F) throughout December.Humidity
In December, the average relative humidity in Alahärmä is 92%.Rainfall
In December, in Alahärmä, the rain falls for 6.7 days. Throughout December, 31mm (1.22") of precipitation is accumulated. In Alahärmä, 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. December is the month with the most snowfall in Alahärmä. Snow falls for 16.2 days and accumulates 144mm (5.67") of snow.Daylight
With an average of 4h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 09:36 and sunset at 14:59. On the last day of December, in Alahärmä, sunrise is at 10:07 and sunset at 14:56 EET.
Sunshine
December has the least sunshine of the year, with an average of 0.9h 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 reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Alahärmä?
What is the average humidity in December in Alahärmä?
How many days does it rain in December in Alahärmä?
What is the snowiest month in Alahärmä?
How many days does it snow in December in Alahärmä?
What is the month with the shortest days in Alahärmä?
What is the average length of the day in December in Alahärmä?
What time are sunrise and sunset in December in Alahärmä?
What is the month with the least sunshine in Alahärmä?
How many hours of sunshine does Alahärmä have in December?
What is the month with the lowest UV index in Alahärmä?
How high is the UV index in December in Alahärmä?
Average temperature in December
Alahärmä, 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
Alahärmä, 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
Alahärmä, 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
Alahärmä, 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
Alahärmä, 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
Alahärmä, 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
Alahärmä, 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
Alahärmä, 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
Alahärmä, Finland
- Average daylight in December: 4h and 5min
The month with the longest days is June (Average daylight: 20h and 12min).
The month with the shortest days is December (Average daylight: 4h and 48min).
- 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
Alahärmä, 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
Alahärmä, 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
Alahärmä, 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
Alahärmä, 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).
Alahärmä, Finland
Weather forecast for your location
2. Allow the app to use your location
