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Monthly climate in Trofors, Norway

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Trofors features a subarctic climate (Dfc). Temperatures typically range between -7 °C (19 °F) and 13 °C (55 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 1806 mm (71.1 inches) and receives 211 rainy days on the 1 mm (0.04 inches) threshold annually. Trofors enjoys an average of 2867 hours of sunshine throughout the year, and daylight varies from 3 hours 27 minutes to 22 hours 18 minutes per day.

Monthly average temperatures in Trofors, Norway

The warmest months in Trofors are June, July and August, with daily mean temperatures ranging from 10 to 13 °C (51 - 55 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -6 °C (19 - 22 °F) throughout the day. On average each year, Trofors experiences 2 days above 25 °C (77.0 °F) and 186 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Trofors. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum5°C
(42°F)		5°C
(42°F)		7°C
(45°F)		14°C
(58°F)		23°C
(73°F)		24°C
(76°F)		30°C
(86°F)		24°C
(75°F)		17°C
(63°F)		15°C
(59°F)		8°C
(47°F)		4°C
(40°F)
Mean maximum3°C
(37°F)		3°C
(37°F)		4°C
(39°F)		9°C
(49°F)		17°C
(62°F)		21°C
(70°F)		25°C
(78°F)		21°C
(71°F)		16°C
(61°F)		11°C
(53°F)		6°C
(43°F)		4°C
(39°F)
Average high-4°C
(24°F)		-5°C
(23°F)		-2°C
(29°F)		2°C
(37°F)		7°C
(45°F)		14°C
(57°F)		17°C
(62°F)		14°C
(58°F)		10°C
(50°F)		4°C
(40°F)		-1°C
(31°F)		-3°C
(26°F)
Daily mean-7°C
(20°F)		-7°C
(19°F)		-5°C
(24°F)		-1°C
(31°F)		4°C
(40°F)		10°C
(51°F)		13°C
(55°F)		11°C
(52°F)		7°C
(45°F)		2°C
(36°F)		-3°C
(28°F)		-6°C
(22°F)
Average low-9°C
(15°F)		-10°C
(14°F)		-8°C
(18°F)		-5°C
(24°F)		0°C
(33°F)		6°C
(43°F)		8°C
(47°F)		7°C
(45°F)		4°C
(39°F)		-0°C
(32°F)		-5°C
(24°F)		-8°C
(18°F)
Mean minimum-21°C
(-5°F)		-21°C
(-6°F)		-18°C
(-0°F)		-13°C
(8°F)		-6°C
(21°F)		1°C
(33°F)		3°C
(37°F)		2°C
(35°F)		-2°C
(29°F)		-9°C
(17°F)		-15°C
(5°F)		-17°C
(2°F)
Minimum-24°C
(-11°F)		-25°C
(-13°F)		-24°C
(-11°F)		-17°C
(3°F)		-8°C
(18°F)		-3°C
(28°F)		0°C
(32°F)		1°C
(34°F)		-4°C
(26°F)		-13°C
(9°F)		-21°C
(-5°F)		-23°C
(-9°F)

Compare climate in Trofors with other places

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

Monthly average precipitation in Trofors, Norway

Trofors usually has the most precipitation in January, March and September, with an average of 18 rainy days and 202 mm (7.9 inches) of precipitation per month. The driest months in Trofors are May, June and July. On average, 111 mm (4.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Trofors. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)202 (8.0)135 (5.3)221 (8.7)138 (5.4)87 (3.4)129 (5.1)117 (4.6)157 (6.2)182 (7.2)148 (5.8)150 (5.9)141 (5.5)
Average precipitation days (≥ 1 mm)161520161517172019191918

Monthly sunshine hours in Trofors, Norway

The sunniest months in Trofors are May, June and July, when the sun shines an average of 14 hours 17 minutes a day. Least sunny months in Trofors: January, November and December receive an average of 0 hours 56 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Trofors. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours25118240331412442459358257161528
Mean daily daylight hours4h 52m8h 18m11h 48m15h 23m19h 7m22h 18m20h 21m16h 33m12h 59m9h 29m5h 57m3h 27m

Solar UV radiation in Trofors, Norway

Trofors 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 Trofors UV Index data.

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