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
December heralds a minor drop in average high-temperature, sliding from November's cold 4.5°C (40.1°F) to a still icy 0.5°C (32.9°F). A modest dip in temperatures to an average of -3.1°C (26.4°F) is observed throughout Västerås's December nights.Humidity
In Västerås, the average relative humidity in December is 89%.Rainfall
In Västerås, in December, during 6.7 rainfall days, 12mm (0.47") of precipitation is typically accumulated. In Västerås, during the entire year, the rain falls for 105.3 days and collects up to 174mm (6.85") of precipitation.Snowfall
Months with snowfall in Västerås are January through May, October through December. In Västerås, in December, during 8.6 snowfall days, 31mm (1.22") of snow is typically accumulated. In Västerås, during the entire year, snow falls for 41.1 days and aggregates up to 163mm (6.42") of snow.Daylight
With an average of 6h and 12min of daylight, December has the shortest days of the year in Västerås.On the first day of the month, sunrise is at 08:26 and sunset at 14:59. On the last day of December, in Västerås, sunrise is at 08:52 and sunset at 15:01 CET.
Sunshine
The month with the least sunshine is December, with an average of 2.5h of sunshine.UV index
In December, the average daily maximum UV index in Västerås is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Västerås?
What is the average humidity in December in Västerås?
How much does it rain in Västerås in December?
How many days does it snow in December in Västerås?
What is the month with the shortest days in Västerås?
How many hours of daylight does Västerås have in December?
When are sunrise and sunset in December in Västerås?
What is the month with the least sunshine in Västerås?
How long on average sun shines in December in Västerås?
What is the UV index intensity in December in Västerås?
Average temperature in December
Västerås, Sweden
- Average high temperature in December: 0.5°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in December: -3.1°C
The month with the highest average low temperature is July (12.5°C).
The coldest months (with the lowest average low temperature) are January and February (-4.9°C).
Average pressure in December
Västerås, 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
Västerås, Sweden
- Average wind speed in December: 15.2km/h
The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in December
Västerås, 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 (71%).
Average rainfall in December
Västerås, Sweden
- Average rainfall in December: 12mm
The wettest month (with the highest rainfall) is July (25mm).
The driest months (with the least rainfall) are February and April (9mm).
Average rainfall days in December
Västerås, Sweden
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is January (4 days).
Average snowfall in December
Västerås, Sweden
- Average snowfall in December: 31mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Västerås, Sweden
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Västerås, 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 3min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Västerås, Sweden
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is July (14.4 days).
Average UV index in December
Västerås, 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
Västerås, Sweden
- Average cloud cover in December: 65
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are June and July (Cloud cover 42).
Average visibility in December
Västerås, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).
Västerås, Sweden
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