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
Hallstahammar in December experiences a gentle temperature dip, with average high-temperatures reducing from a wintry 4.2°C (39.6°F) in November to a still icy 0.4°C (32.7°F). Hallstahammar welcomes an average low temperature of -3.1°C (26.4°F) in December, a gentle shift from the day's high.Humidity
In Hallstahammar, the average relative humidity in December is 89%.Rainfall
In Hallstahammar, during December, the rain falls for 10.9 days and regularly aggregates up to 35mm (1.38") of precipitation. In Hallstahammar, during the entire year, the rain falls for 145.4 days and collects up to 399mm (15.71") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Hallstahammar, during December, snow falls for 13 days and regularly aggregates up to 111mm (4.37") of snow. In Hallstahammar, during the entire year, snow falls for 61.4 days and aggregates up to 539mm (21.22") of snow.Daylight
With an average of 6h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:27 and sunset at 15:00. On the last day of December, sunrise is at 08:53 and sunset at 15:02 CET.
Sunshine
December has the least sunshine of the year in Hallstahammar, with an average of 2.6h of sunshine.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in 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 Hallstahammar have in December?
How high is the UV index in December?
Average temperature in December
Hallstahammar, Sweden
- Average high temperature in December: 0.4°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in December: -3.1°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 (-5.3°C).
Average pressure in December
Hallstahammar, Sweden
- Average pressure in December: 1007.7mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in December
Hallstahammar, Sweden
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.7km/h).
Average humidity in December
Hallstahammar, Sweden
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (69%).
Average rainfall in December
Hallstahammar, Sweden
- Average rainfall in December: 35mm
The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Hallstahammar, Sweden
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in December
Hallstahammar, Sweden
- Average snowfall in December: 111mm
The month with the highest snowfall is January (138mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Hallstahammar, Sweden
- Average snowfall days in December: 13 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hallstahammar, Sweden
- Average daylight in December: 6h and 1min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average sunshine days in December
Hallstahammar, Sweden
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is September (14.8 days).
The month with the least sunshine days is December (10.5 days).
Average UV index in December
Hallstahammar, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Hallstahammar, Sweden
- Average cloud cover in December: 64
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are June, July and August (Cloud cover 42).
Average visibility in December
Hallstahammar, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is February (7km).
