December Weather in Grong, Norway

Last updated: August 27, 2025

In Grong, Norway, the average temperature in December hovers around -2°C (28°F). Be prepared for chilly conditions, as temperatures can dip as low as -19°C (-2°F) and occasionally reach a maximum of 7°C (45°F). Expect 141 mm (5.5 in) of precipitation spread over 16 days, with an average humidity of 85%. Dress warmly and stay dry while exploring this winter wonderland!

December Temperature in Grong

In December in Grong, the average temperature is -2°C (28°F). Maximum temperatures can reach 7°C (45°F), while minimums can be as low as -19°C (-2°F). Travelers should prepare for a range of chilly weather conditions, including the possibility of very cold nights.

December Weather in Grong: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Grong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grong, December typically has an average temperature of -2°C (28°F), with highs reaching up to 7°C (45°F) and lows dropping to around -19°C (-2°F).

Data source: Temperature data for Grong generated using information from the Copernicus Climate Change Service.

December Precipitation in Grong

In Grong in December, the precipitation amount is 141 mm (5.5 in) accumulated over 16 days.

December Precipitation Trends in Grong

The chart displays monthly precipitation patterns in Grong, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Grong, December typically receives around 141 mm (5.5 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Grong

In Grong in December, humidity is 85%. With an average temperature of -2°C (28°F), this humidity feels like an icy grip that clings uncomfortably to your skin, making every step feel heavier and hastening the chill that seeps into your bones, discouraging long outdoor excursions and leaving you yearning for warmth and shelter.

December Average Humidity in Grong

This chart illustrates the average monthly humidity levels in Grong, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Grong is approximately 85%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grong

In Grong in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Grong.

Maximum UV Index Levels in Grong for December

The chart shows the monthly maximum UV Index (UVI) for Grong in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Grong typically reaches 1, which falls under the low exposure category.

Data source: Grong December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Grong Compares to Other Months

Weather in Grong varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Grong, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Grong, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	161 mm (6.4 inches)	86%	low
February Weather	-4°C (25°F)	110 mm (4.3 inches)	84%	low
March Weather	-1°C (30°F)	169 mm (6.6 inches)	83%	moderate
April Weather	3°C (37°F)	136 mm (5.3 inches)	80%	moderate
May Weather	8°C (46°F)	81 mm (3.2 inches)	75%	moderate
June Weather	13°C (55°F)	122 mm (4.8 inches)	78%	high
July Weather	15°C (58°F)	101 mm (4.0 inches)	79%	high
August Weather	13°C (55°F)	158 mm (6.2 inches)	81%	moderate
September Weather	9°C (49°F)	193 mm (7.6 inches)	84%	moderate
October Weather	5°C (41°F)	144 mm (5.7 inches)	87%	low
November Weather	0°C (33°F)	128 mm (5.0 inches)	86%	low
December Weather	-2°C (28°F)	141 mm (5.5 inches)	85%	low