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 December, the average high-temperature marginally decreases from a subzero cold -0.5°C (31.1°F) in November to a still freezing cold -3.5°C (25.7°F). December in Grong witnesses a minor deviation from daytime peaks, with an average nighttime temperature of -7.6°C (18.3°F).Humidity
The average relative humidity in December is 92%.Rainfall
In Grong, in December, during 10.6 rainfall days, 106mm (4.17") of precipitation is typically accumulated. Throughout the year, in Grong, Norway, there are 158.4 rainfall days, and 874mm (34.41") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Grong, in December, snow falls for 20.1 days, with typically accumulated 418mm (16.46") of snow. In Grong, Norway, during the entire year, snow falls for 111.8 days and aggregates up to 2284mm (89.92") of snow.Daylight
The month with the shortest days in Grong is December, with an average of 4h and 12min of daylight.On the first day of the month, sunrise is at 09:34 and sunset at 14:25. On the last day of December, in Grong, sunrise is at 10:07 and sunset at 14:19 CET.
Sunshine
With an average of 1.3h of sunshine, December has the least sunshine of the year in Grong.UV index
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Grong. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Grong?
What is the average humidity in December in Grong?
How many days does it rain in December in Grong?
How much does it snow in Grong in December?
What is the month with the shortest days in Grong?
What is the average length of the day in December in Grong?
When is the sunrise / sunset in December in Grong?
What is the month with the least sunshine in Grong?
How long on average sun shines in December in Grong?
What is the month with the lowest UV index in Grong?
How high is the UV index in December in Grong?
Average temperature in December
Grong, Norway
- Average high temperature in December: -3.5°C
The warmest month (with the highest average high temperature) is July (17.1°C).
The month with the lowest average high temperature is January (-4.5°C).
- Average low temperature in December: -7.6°C
The month with the highest average low temperature is July (8.8°C).
The coldest month (with the lowest average low temperature) is February (-9.6°C).
Average pressure in December
Grong, Norway
- Average pressure in December: 1003.5mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1003.5mbar).
Average wind speed in December
Grong, Norway
- Average wind speed in December: 10.8km/h
The windiest month (with the highest average wind speed) is January (11.8km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in December
Grong, Norway
- Average humidity in December: 92%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is June (74%).
Average rainfall in December
Grong, Norway
- Average rainfall in December: 106mm
The wettest month (with the highest rainfall) is March (112mm).
The driest month (with the least rainfall) is July (41mm).
Average rainfall days in December
Grong, Norway
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in December
Grong, Norway
- Average snowfall in December: 418mm
The month with the highest snowfall is March (470mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grong, Norway
- Average snowfall days in December: 20.1 days
The month with the highest number of snowfall days is March (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grong, Norway
- Average daylight in December: 4h and 1min
The month with the longest days is June (Average daylight: 21h and 6min).
The month with the shortest days is December (Average daylight: 4h and 12min).
- Average sunshine in December: 1h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in December
Grong, Norway
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is August (16.8 days).
The month with the least sunshine days is March (6.3 days).
Average UV index in December
Grong, Norway
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in December
Grong, Norway
- Average cloud cover in December: 69
The month with the most cloud cover is March (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 58).
Average visibility in December
Grong, Norway
- Average visibility in December: 6km
The month with the highest visibility is June (9km).
The months with the lowest visibility are January, February, March, April and December (6km).
