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
December's onset introduces a mild reduction in the average high-temperature, from a cold 3°C (37.4°F) in November to a subzero cold -0.9°C (30.4°F). Grasmo encounters a negligible difference from daytime peaks throughout the December nights, with a low-temperature average of -4.5°C (23.9°F).Humidity
In December, the average relative humidity is 90%.Rainfall
In December, in Grasmo, the rain falls for 8.7 days. Throughout December, 41mm (1.61") of precipitation is accumulated. Throughout the year, in Grasmo, there are 154 rainfall days, and 552mm (21.73") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 12.8 days. Throughout December, 161mm (6.34") of snow is accumulated. Throughout the year, there are 66.1 snowfall days, and 882mm (34.72") of snow is accumulated.Daylight
With an average of 6h and 0min of daylight, December has the shortest days of the year in Grasmo.On the first day of the month, sunrise is at 08:47 and sunset at 15:13. On the last day of December, in Grasmo, sunrise is at 09:14 and sunset at 15:15 CET.
Sunshine
The month with the least sunshine in Grasmo, Norway, is December, with an average of 2.7h of sunshine.UV index
The months with the lowest UV index are February, March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Grasmo in December?
What is the average humidity in December in Grasmo?
How much does it rain in Grasmo in December?
How many days does it snow in December in Grasmo?
What is the month with the shortest days in Grasmo?
How many hours of daylight does Grasmo have in December?
When are sunrise and sunset in December in Grasmo?
What is the month with the least sunshine in Grasmo?
How long on average sun shines in December in Grasmo?
What is the month with the lowest UV index in Grasmo?
How high is the UV index in December in Grasmo?
Average temperature in December
Grasmo, Norway
- Average high temperature in December: -0.9°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (-2°C).
- Average low temperature in December: -4.5°C
The month with the highest average low temperature is July (11.1°C).
The coldest month (with the lowest average low temperature) is February (-6.4°C).
Average pressure in December
Grasmo, Norway
- Average pressure in December: 1007.9mbar
The month with the highest atmospheric pressure is April (1014.2mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in December
Grasmo, Norway
- Average wind speed in December: 11.1km/h
The windiest month (with the highest average wind speed) is January (11.2km/h).
The calmest months (with the lowest average wind speed) are July and August (9.5km/h).
Average humidity in December
Grasmo, Norway
- Average humidity in December: 90%
The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (71%).
Average rainfall in December
Grasmo, Norway
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is August (63mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Grasmo, Norway
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in December
Grasmo, Norway
- Average snowfall in December: 161mm
The month with the highest snowfall is March (193mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grasmo, Norway
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is February (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grasmo, Norway
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in December
Grasmo, Norway
- Average sunshine days in December: 13 days
The month with the most sunshine days is April (14.4 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in December
Grasmo, Norway
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, March, November and December (UV index 1).
Average cloud cover in December
Grasmo, Norway
- Average cloud cover in December: 63
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in December
Grasmo, Norway
- Average visibility in December: 7km
The months with the highest visibility are April, May and June (9km).
The months with the lowest visibility are January and February (6km).
