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
A mild shift in the average high-temperature occurs in December, reducing from a wintry 4.5°C (40.1°F) in November to a still cold 0.8°C (33.4°F). Night temperatures in December exhibit a subtle decrease, settling at an average of -1.9°C (28.6°F).Humidity
The average relative humidity in December is 88%.Rainfall
In Lahnus, during December, the rain falls for 13.1 days and regularly aggregates up to 50mm (1.97") of precipitation. In Lahnus, during the entire year, the rain falls for 154.7 days and collects up to 499mm (19.65") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Lahnus, in December, snow falls for 16 days, with typically accumulated 133mm (5.24") of snow. Throughout the year, there are 83.6 snowfall days, and 675mm (26.57") of snow is accumulated.Daylight
With an average of 5h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:59 and sunset at 15:21. On the last day of December, sunrise is at 09:26 and sunset at 15:22 EET.
Sunshine
The month with the least sunshine is December, with an average of 1.8h of sunshine.UV index
January through March and December, with an average maximum UV index of 1, are months with the lowest UV index in Lahnus. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Lahnus have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Lahnus, Finland
- Average high temperature in December: 0.8°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-2.1°C).
- Average low temperature in December: -1.9°C
The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in December
Lahnus, Finland
- Average pressure in December: 1008.5mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in December
Lahnus, Finland
- Average wind speed in December: 20.1km/h
The windiest month (with the highest average wind speed) is December (20.1km/h).
The calmest month (with the lowest average wind speed) is May (13.2km/h).
Average humidity in December
Lahnus, Finland
- Average humidity in December: 88%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Lahnus, Finland
- Average rainfall in December: 50mm
The wettest months (with the highest rainfall) are July and October (52mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in December
Lahnus, Finland
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Lahnus, Finland
- Average snowfall in December: 133mm
The month with the highest snowfall is January (157mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Lahnus, Finland
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lahnus, Finland
- Average daylight in December: 5h and 5min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in December: 1h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in December
Lahnus, Finland
- Average sunshine days in December: 5.6 days
The month with the most sunshine days is May (16.5 days).
The month with the least sunshine days is December (5.6 days).
Average UV index in December
Lahnus, 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 and December (UV index 1).
Average cloud cover in December
Lahnus, Finland
- Average cloud cover in December: 75
The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Lahnus, Finland
- Average visibility in December: 8km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
