December weather forecastGrillby, Sweden
December
Weather in December
December, the first month of the winter in Grillby, is also a wintry month, with an average temperature ranging between max 0.5°C (32.9°F) and min -2.9°C (26.8°F).Temperature
The arrival of December suggests a slight decrease in the average high-temperature, moving from 4.4°C (39.9°F) in November to a still icy 0.5°C (32.9°F). Grillby records a consistent average nighttime temperature of -2.9°C (26.8°F) in December, slightly lower than the daytime high.Humidity
In Grillby, the average relative humidity in December is 89%.Rainfall
In December, in Grillby, the rain falls for 9.3 days. Throughout December, 35mm (1.38") of precipitation is accumulated. In Grillby, during the entire year, the rain falls for 147 days and collects up to 396mm (15.59") of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 12.8 days and typically aggregates up to 110mm (4.33") of snow.Daylight
December has the shortest days of the year, with an average of 6h and 12min of daylight.On the first day of the month, sunrise is at 08:23 and sunset at 14:56. On the last day of December, sunrise is at 08:49 and sunset at 14:58 CET.
Sunshine
The month with the least sunshine in Grillby is December, with an average of 2.5h of sunshine.UV index
In Grillby, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grillby, Sweden
- Average high temperature in December: 0.5°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-1.1°C).
- Average low temperature in December: -2.9°C
The month with the highest average low temperature is July (12.7°C).
The coldest months (with the lowest average low temperature) are January and February (-4.8°C).
Average pressure in December
Grillby, Sweden
- Average pressure in December: 1007.6mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in December
Grillby, 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 months (with the lowest average wind speed) are July and August (11.2km/h).
Average humidity in December
Grillby, 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 (70%).
Average rainfall in December
Grillby, Sweden
- Average rainfall in December: 35mm
The wettest month (with the highest rainfall) is July (46mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Grillby, Sweden
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in December
Grillby, Sweden
- Average snowfall in December: 110mm
The month with the highest snowfall is December (110mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grillby, Sweden
- Average snowfall days in December: 12.8 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
Grillby, Sweden
- Average daylight in December: 6h and 12min
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 30min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Grillby, Sweden
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Grillby, 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
Grillby, 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, July and August (Cloud cover 42).
Average visibility in December
Grillby, 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).
