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 brings a minor shift in the average high-temperature, adjusting from a wintry 1.3°C (34.3°F) in November to a freezing cold -2.6°C (27.3°F). Hirmula notes a steady average temperature of -6°C (21.2°F) during the nights of December.Humidity
In Hirmula, the average relative humidity in December is 91%.Rainfall
In December, in Hirmula, the rain falls for 6.2 days. Throughout December, 47mm (1.85") of precipitation is accumulated. Throughout the year, there are 127.7 rainfall days, and 479mm (18.86") of precipitation is accumulated.Snowfall
January through June, October through December are months with snowfall. In Hirmula, during December, snow falls for 18 days and regularly aggregates up to 196mm (7.72") of snow. In Hirmula, during the entire year, snow falls for 98.7 days and aggregates up to 1030mm (40.55") of snow.Daylight
The month with the shortest days is December, with an average of 3h and 18min of daylight.On the first day of the month, sunrise is at 10:06 and sunset at 14:14. On the last day of December, sunrise is at 10:46 and sunset at 14:03 EET.
Sunshine
With an average of 0.9h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, March, October and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 1 during December translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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?
How many hours of daylight does Hirmula have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Hirmula have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Hirmula, Finland
- Average high temperature in December: -2.6°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in December: -6°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-10.7°C).
Average pressure in December
Hirmula, 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
Hirmula, Finland
- Average wind speed in December: 17.2km/h
The windiest month (with the highest average wind speed) is November (17.7km/h).
The calmest month (with the lowest average wind speed) is April (12.4km/h).
Average humidity in December
Hirmula, 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 (71%).
Average rainfall in December
Hirmula, Finland
- Average rainfall in December: 47mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in December
Hirmula, Finland
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Hirmula, Finland
- Average snowfall in December: 196mm
The month with the highest snowfall is March (228mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in December
Hirmula, Finland
- Average snowfall days in December: 18 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hirmula, Finland
- Average daylight in December: 3h and 2min
The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in December: 0h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average sunshine days in December
Hirmula, Finland
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is October (13.9 days).
The month with the least sunshine days is December (9.9 days).
Average UV index in December
Hirmula, 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, March, October and December (UV index 1).
Average cloud cover in December
Hirmula, Finland
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Hirmula, Finland
- Average visibility in December: 8km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March and April (7km).
