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Monthly climate in Nelson, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Nelson features a subarctic climate (Dfc). Temperatures typically range between -7 °C (19 °F) and 18 °C (64 °F) through the year, but rarely can drop to -28 °C (-18 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 979 mm (38.5 inches) and receives 160 rainy days on the 1 mm (0.04 inches) threshold annually. Nelson enjoys an average of 2754 hours of sunshine throughout the year, and daylight varies from 8 hours 12 minutes to 16 hours 11 minutes per day.

Monthly average temperatures in Nelson, Canada

The warmest months in Nelson are June, July and August, with daily mean temperatures ranging from 13 to 18 °C (56 - 64 °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, Nelson experiences 30 days above 25 °C (77.0 °F) and 182 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Nelson. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum3°C
(37°F)		7°C
(46°F)		14°C
(58°F)		18°C
(65°F)		26°C
(78°F)		38°C
(100°F)		37°C
(99°F)		36°C
(97°F)		29°C
(85°F)		21°C
(70°F)		9°C
(49°F)		7°C
(45°F)
Mean maximum2°C
(36°F)		4°C
(40°F)		9°C
(49°F)		15°C
(59°F)		23°C
(74°F)		26°C
(79°F)		32°C
(89°F)		33°C
(91°F)		27°C
(80°F)		16°C
(61°F)		7°C
(45°F)		4°C
(39°F)
Average high-4°C
(26°F)		-4°C
(26°F)		3°C
(37°F)		7°C
(45°F)		14°C
(58°F)		19°C
(66°F)		24°C
(75°F)		24°C
(75°F)		17°C
(62°F)		8°C
(46°F)		2°C
(35°F)		-3°C
(27°F)
Daily mean-7°C
(20°F)		-7°C
(19°F)		-1°C
(30°F)		2°C
(36°F)		9°C
(48°F)		13°C
(56°F)		18°C
(64°F)		17°C
(64°F)		11°C
(53°F)		3°C
(38°F)		-1°C
(30°F)		-6°C
(22°F)
Average low-10°C
(15°F)		-11°C
(13°F)		-5°C
(23°F)		-2°C
(28°F)		3°C
(37°F)		7°C
(45°F)		10°C
(50°F)		11°C
(51°F)		6°C
(44°F)		-1°C
(31°F)		-4°C
(26°F)		-8°C
(17°F)
Mean minimum-23°C
(-9°F)		-22°C
(-8°F)		-14°C
(6°F)		-9°C
(16°F)		-2°C
(28°F)		2°C
(35°F)		5°C
(41°F)		5°C
(41°F)		-1°C
(31°F)		-8°C
(18°F)		-10°C
(14°F)		-18°C
(0°F)
Minimum-27°C
(-17°F)		-28°C
(-18°F)		-20°C
(-4°F)		-14°C
(8°F)		-4°C
(25°F)		-0°C
(32°F)		2°C
(37°F)		3°C
(38°F)		-3°C
(27°F)		-14°C
(6°F)		-14°C
(7°F)		-24°C
(-10°F)

Compare climate in Nelson with other places

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

Monthly average precipitation in Nelson, Canada

Nelson usually has the most precipitation in October, November and December, with an average of 16 rainy days and 107 mm (4.2 inches) of precipitation per month. The driest months in Nelson are July, August and September. On average, 49 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Nelson. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)89 (3.5)90 (3.5)91 (3.6)89 (3.5)72 (2.8)79 (3.1)38 (1.5)41 (1.6)69 (2.7)95 (3.7)115 (4.5)111 (4.4)
Average precipitation days (≥ 1 mm)1415161613147511141817

Monthly sunshine hours in Nelson, Canada

The sunniest months in Nelson are June, July and August, when the sun shines an average of 11 hours 49 minutes a day. Least sunny months in Nelson: January, November and December receive an average of 3 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nelson. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours831452012593183413953512621969999
Mean daily daylight hours8h 41m10h 8m11h 56m13h 47m15h 23m16h 11m15h 44m14h 18m12h 31m10h 41m9h 3m8h 12m

Solar UV radiation in Nelson, Canada

Nelson experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 9 - 9, which corresponds to the Very 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 2. For more detailed information, check out our hourly Nelson UV Index data.

Average daily maximum UV levels by month for Nelson. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235799997421