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Monthly climate in Fort Nelson, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Fort Nelson features a subarctic climate (Dfc). Temperatures typically range between -17 °C (2 °F) and 17 °C (63 °F) through the year, but rarely can drop to -42 °C (-43 °F) or can rise to as high as 35 °C (94 °F). The average annual precipitation amounts to about 524 mm (20.6 inches) and receives 95 rainy days on the 1 mm (0.04 inches) threshold annually. Fort Nelson enjoys an average of 2747 hours of sunshine throughout the year, and daylight varies from 6 hours 20 minutes to 18 hours 17 minutes per day.

Monthly average temperatures in Fort Nelson, Canada

The warmest months in Fort Nelson are June, July and August, with daily mean temperatures ranging from 15 to 17 °C (60 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -17 to -16 °C (2 - 4 °F) throughout the day. On average each year, Fort Nelson experiences 18 days above 25 °C (77.0 °F) and 189 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Fort Nelson. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum5°C
(42°F)		8°C
(47°F)		17°C
(62°F)		21°C
(69°F)		30°C
(87°F)		35°C
(94°F)		32°C
(89°F)		33°C
(92°F)		29°C
(84°F)		21°C
(70°F)		9°C
(48°F)		6°C
(43°F)
Mean maximum2°C
(35°F)		3°C
(38°F)		11°C
(52°F)		17°C
(64°F)		25°C
(77°F)		29°C
(85°F)		29°C
(85°F)		31°C
(88°F)		24°C
(75°F)		18°C
(64°F)		3°C
(38°F)		-1°C
(31°F)
Average high-14°C
(8°F)		-10°C
(14°F)		-2°C
(28°F)		7°C
(44°F)		17°C
(62°F)		20°C
(69°F)		22°C
(73°F)		21°C
(71°F)		16°C
(61°F)		6°C
(44°F)		-8°C
(18°F)		-13°C
(9°F)
Daily mean-17°C
(2°F)		-16°C
(4°F)		-9°C
(16°F)		1°C
(34°F)		11°C
(52°F)		15°C
(60°F)		17°C
(63°F)		16°C
(60°F)		10°C
(50°F)		2°C
(35°F)		-11°C
(12°F)		-16°C
(3°F)
Average low-20°C
(-4°F)		-20°C
(-4°F)		-14°C
(7°F)		-5°C
(24°F)		5°C
(41°F)		10°C
(50°F)		12°C
(53°F)		10°C
(51°F)		4°C
(40°F)		-2°C
(29°F)		-15°C
(5°F)		-20°C
(-3°F)
Mean minimum-37°C
(-34°F)		-33°C
(-28°F)		-28°C
(-18°F)		-18°C
(1°F)		-2°C
(28°F)		5°C
(40°F)		7°C
(44°F)		4°C
(40°F)		-2°C
(29°F)		-9°C
(17°F)		-26°C
(-15°F)		-33°C
(-27°F)
Minimum-42°C
(-43°F)		-38°C
(-36°F)		-32°C
(-24°F)		-24°C
(-11°F)		-6°C
(21°F)		3°C
(37°F)		5°C
(42°F)		2°C
(36°F)		-6°C
(22°F)		-13°C
(9°F)		-28°C
(-19°F)		-40°C
(-40°F)

Compare climate in Fort Nelson with other places

Compare temperature, precipitation, sunshine, UV index in Fort Nelson, Canada with other places around the world.

Monthly average precipitation in Fort Nelson, Canada

Fort Nelson usually has the most precipitation in June, July and August, with an average of 11 rainy days and 94 mm (3.7 inches) of precipitation per month. The driest months in Fort Nelson are February, April and December. On average, 20 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Fort Nelson. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)22 (0.9)21 (0.8)30 (1.2)21 (0.8)38 (1.5)106 (4.2)107 (4.2)69 (2.7)30 (1.2)22 (0.8)42 (1.7)18 (0.7)
Average precipitation days (≥ 1 mm)7675812121066115

Monthly sunshine hours in Fort Nelson, Canada

The sunniest months in Fort Nelson are May, June and July, when the sun shines an average of 11 hours 5 minutes a day. Least sunny months in Fort Nelson: January, November and December receive an average of 3 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Fort Nelson. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours79147229287342326350317256192103112
Mean daily daylight hours7h 6m9h 19m11h 54m14h 32m16h 56m18h 17m17h 31m15h 17m12h 43m10h 7m7h 42m6h 20m

Solar UV radiation in Fort Nelson, Canada

Fort Nelson experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 6 - 7, which corresponds to the High category of sun exposure. January, November and December 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 Fort Nelson UV Index data.

Average daily maximum UV levels by month for Fort Nelson. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123466765311