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
In Tornby, entering December brings a subtle temperature decrement, reducing from November's cold 5.1°C (41.2°F) to a still wintry 1.5°C (34.7°F). During the nights of December, Tornby records an average low-temperature of -2.1°C (28.2°F), reflecting a modest decrease from daytime highs.Humidity
In December, the average relative humidity is 89%.Rainfall
In Tornby, in December, during 7.5 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, there are 119.9 rainfall days, and 244mm (9.61") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Tornby, it is snowing for 10.4 days. Throughout December, 48mm (1.89") of snow is accumulated. Throughout the year, there are 48.3 snowfall days, and 233mm (9.17") of snow is accumulated.Daylight
With an average of 6h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 08:19 and sunset at 15:08. On the last day of the month, sunrise is at 08:44 and sunset at 15:11 CET.
Sunshine
In Tornby, the average sunshine in December is 3.5h.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is 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 in Tornby?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the UV index intensity in December?
Average temperature in December
Tornby, Sweden
- Average high temperature in December: 1.5°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 (-0.3°C).
- Average low temperature in December: -2.1°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 (-3.8°C).
Average pressure in December
Tornby, Sweden
- Average pressure in December: 1008.6mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).
Average wind speed in December
Tornby, Sweden
- Average wind speed in December: 13.6km/h
The windiest month (with the highest average wind speed) is December (13.6km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in December
Tornby, Sweden
- Average humidity in December: 89%
The months with the highest relative humidity are January, February and November (90%).
The month with the lowest relative humidity is May (69%).
Average rainfall in December
Tornby, Sweden
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in December
Tornby, Sweden
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Tornby, Sweden
- Average snowfall in December: 48mm
The month with the highest snowfall is February (60mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Tornby, Sweden
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tornby, Sweden
- Average daylight in December: 6h and 3min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in December
Tornby, Sweden
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is July (13.7 days).
Average UV index in December
Tornby, 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 March (UV index 1).
Average cloud cover in December
Tornby, Sweden
- Average cloud cover in December: 66
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 41).
Average visibility in December
Tornby, 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).
