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
The arrival of December suggests a slight decrease in the average high-temperature, moving from a chilly 7.9°C (46.2°F) in November to an icy 3.7°C (38.7°F). During December, the temperature in Heimiswil is averaged to a low of -2.4°C (27.7°F) at night.Humidity
The average relative humidity in December in Heimiswil is 84%.Rainfall
In December, in Heimiswil, the rain falls for 9.6 days. Throughout December, 70mm (2.76") of precipitation is accumulated. Throughout the year, there are 158.6 rainfall days, and 789mm (31.06") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Heimiswil, it is snowing for 10.8 days. Throughout December, 226mm (8.9") of snow is accumulated. Throughout the year, in Heimiswil, Switzerland, there are 59.1 snowfall days, and 1284mm (50.55") of snow is accumulated.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Heimiswil.On the first day of the month, sunrise is at 07:55 and sunset at 16:42. On the last day of December, in Heimiswil, Switzerland, sunrise is at 08:15 and sunset at 16:49 CET.
Sunshine
In December, the average sunshine in Heimiswil is 5.3h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Heimiswil. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
Is December cold in Heimiswil?
What is the average humidity in December in Heimiswil?
How many days does it rain in December in Heimiswil?
How much does it snow in Heimiswil in December?
What is the month with the shortest days in Heimiswil?
How many hours of daylight does Heimiswil have in December?
When are sunrise and sunset in December in Heimiswil?
How long on average sun shines in December in Heimiswil?
When is the lowest UV index in Heimiswil?
How high is the UV index in December in Heimiswil?
Average temperature in December
Heimiswil, Switzerland
- Average high temperature in December: 3.7°C
The warmest month (with the highest average high temperature) is July (22.5°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in December: -2.4°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-4.3°C).
Average pressure in December
Heimiswil, Switzerland
- Average pressure in December: 1021mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Heimiswil, Switzerland
- Average wind speed in December: 8.5km/h
The windiest month (with the highest average wind speed) is March (8.6km/h).
The calmest month (with the lowest average wind speed) is August (6.1km/h).
Average humidity in December
Heimiswil, Switzerland
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (77%).
Average rainfall in December
Heimiswil, Switzerland
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is June (99mm).
The driest month (with the least rainfall) is September (37mm).
Average rainfall days in December
Heimiswil, Switzerland
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in December
Heimiswil, Switzerland
- Average snowfall in December: 226mm
The month with the highest snowfall is January (269mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Heimiswil, Switzerland
- Average snowfall days in December: 10.8 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heimiswil, Switzerland
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Heimiswil, Switzerland
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Heimiswil, Switzerland
- 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, February, October, November and December (UV index 2).
Average cloud cover in December
Heimiswil, Switzerland
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Heimiswil, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).
Heimiswil, Switzerland
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