nomadseason

Monthly climate in Grong, Norway

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Grong features a subarctic climate (Dfc). Temperatures typically range between -4 °C (25 °F) and 15 °C (58 °F) through the year, but rarely can drop to -29 °C (-19 °F) or can rise to as high as 32 °C (91 °F). The average annual precipitation amounts to about 1644 mm (64.7 inches) and receives 201 rainy days on the 1 mm (0.04 inches) threshold annually. Grong enjoys an average of 2849 hours of sunshine throughout the year, and daylight varies from 4 hours 8 minutes to 21 hours 5 minutes per day.

Monthly average temperatures in Grong, Norway

The warmest months in Grong are June, July and August, with daily mean temperatures ranging from 13 to 15 °C (55 - 58 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -2 °C (25 - 28 °F) throughout the day. On average each year, Grong experiences 6 days above 25 °C (77.0 °F) and 141 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Grong. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(47°F)		7°C
(45°F)		10°C
(49°F)		20°C
(68°F)		25°C
(77°F)		28°C
(83°F)		32°C
(91°F)		29°C
(85°F)		19°C
(67°F)		18°C
(65°F)		10°C
(51°F)		7°C
(45°F)
Mean maximum6°C
(43°F)		5°C
(41°F)		7°C
(46°F)		14°C
(58°F)		20°C
(69°F)		24°C
(76°F)		28°C
(82°F)		25°C
(77°F)		19°C
(66°F)		14°C
(58°F)		8°C
(47°F)		6°C
(43°F)
Average high-1°C
(31°F)		-2°C
(30°F)		2°C
(36°F)		7°C
(44°F)		11°C
(53°F)		17°C
(62°F)		19°C
(66°F)		17°C
(62°F)		13°C
(55°F)		7°C
(45°F)		2°C
(36°F)		-0°C
(32°F)
Daily mean-3°C
(26°F)		-4°C
(25°F)		-1°C
(30°F)		3°C
(37°F)		8°C
(46°F)		13°C
(55°F)		15°C
(58°F)		13°C
(55°F)		9°C
(49°F)		5°C
(41°F)		0°C
(33°F)		-2°C
(28°F)
Average low-6°C
(22°F)		-7°C
(20°F)		-5°C
(23°F)		-2°C
(30°F)		3°C
(38°F)		8°C
(47°F)		10°C
(50°F)		9°C
(48°F)		6°C
(44°F)		3°C
(37°F)		-2°C
(29°F)		-4°C
(24°F)
Mean minimum-16°C
(3°F)		-19°C
(-2°F)		-16°C
(4°F)		-10°C
(15°F)		-3°C
(28°F)		3°C
(38°F)		4°C
(40°F)		3°C
(38°F)		2°C
(36°F)		-4°C
(24°F)		-11°C
(12°F)		-13°C
(8°F)
Minimum-23°C
(-10°F)		-29°C
(-19°F)		-24°C
(-10°F)		-15°C
(5°F)		-4°C
(26°F)		-1°C
(30°F)		3°C
(37°F)		2°C
(37°F)		0°C
(33°F)		-7°C
(20°F)		-16°C
(3°F)		-19°C
(-2°F)

Compare climate in Grong with other places

Compare temperature, precipitation, sunshine, UV index in Grong, Norway with other places around the world.

Monthly average precipitation in Grong, Norway

Grong usually has the most precipitation in January, March and September, with an average of 18 rainy days and 174 mm (6.9 inches) of precipitation per month. The driest months in Grong are February, May and July. On average, 97 mm (3.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grong. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)161 (6.4)110 (4.3)169 (6.6)136 (5.3)81 (3.2)122 (4.8)101 (4.0)158 (6.2)193 (7.6)144 (5.7)128 (5.0)141 (5.5)
Average precipitation days (≥ 1 mm)161519161516151819201616

Monthly sunshine hours in Grong, Norway

The sunniest months in Grong are May, June and July, when the sun shines an average of 13 hours 21 minutes a day. Least sunny months in Grong: January, November and December receive an average of 1 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grong. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours431392363174004044243452451748630
Mean daily daylight hours5h 21m8h 29m11h 49m15h 12m18h 37m21h 5m19h 40m16h 18m12h 57m9h 37m6h 19m4h 8m

Solar UV radiation in Grong, Norway

Grong experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 5 - 6, which corresponds to the Moderate / High category of sun exposure. January, February and November are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 1. For more detailed information, check out our hourly Grong UV Index data.

Average daily maximum UV levels by month for Grong. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113456643211