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
The start of December signals a gentle decrease in the average high-temperature, transitioning from a cold 5.1°C (41.2°F) in November to a still wintry 1.9°C (35.4°F). Rök sustains a near constant temperature throughout December, with nighttime averages of -1°C (30.2°F).Humidity
January, February and December, with an average relative humidity of 88%, are the most humid months.Rainfall
In Rök, during December, the rain falls for 6.6 days and regularly aggregates up to 17mm (0.67") of precipitation. In Rök, during the entire year, the rain falls for 112.6 days and collects up to 215mm (8.46") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Rök, during December, snow falls for 9.5 days and regularly aggregates up to 44mm (1.73") of snow. Throughout the year, there are 45.1 snowfall days, and 192mm (7.56") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 6h and 30min of daylight.On the first day of December, sunrise is at 08:23 and sunset at 15:16. On the last day of the month, sunrise is at 08:48 and sunset at 15:19 CET.
Sunshine
The months with the least sunshine are February and December, with an average of 3.2h of sunshine.UV index
The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What are the most humid months?
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 Rök have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine in Rök?
How long on average sun shines in December?
What is the UV index reading in December?
Average temperature in December
Rök, Sweden
- Average high temperature in December: 1.9°C
The warmest month (with the highest average high temperature) is July (19.9°C).
The month with the lowest average high temperature is January (-0.1°C).
- Average low temperature in December: -1°C
The months with the highest average low temperature are July and August (13°C).
The coldest month (with the lowest average low temperature) is February (-2.8°C).
Average pressure in December
Rök, Sweden
- Average pressure in December: 1008.8mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in December
Rök, Sweden
- Average wind speed in December: 18.3km/h
The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest month (with the lowest average wind speed) is May (13.2km/h).
Average humidity in December
Rök, Sweden
- Average humidity in December: 88%
The months with the highest relative humidity are January, February and December (88%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Rök, Sweden
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is July (34mm).
The driest month (with the least rainfall) is April (7mm).
Average rainfall days in December
Rök, Sweden
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Rök, Sweden
- Average snowfall in December: 44mm
The month with the highest snowfall is February (49mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Rök, Sweden
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rök, Sweden
- Average daylight in December: 6h and 3min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).
Average sunshine days in December
Rök, Sweden
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is April (18.3 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in December
Rök, Sweden
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Rök, Sweden
- Average cloud cover in December: 68
The months with the most cloud cover are February and December (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 40).
Average visibility in December
Rök, Sweden
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
