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Monthly climate in Nahanni Butte, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Nahanni Butte features a subarctic climate (Dfc). Temperatures typically range between -20 °C (-4 °F) and 16 °C (62 °F) through the year, but rarely can drop to -44 °C (-48 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 553 mm (21.8 inches) and receives 100 rainy days on the 1 mm (0.04 inches) threshold annually. Nahanni Butte enjoys an average of 2587 hours of sunshine throughout the year, and daylight varies from 5 hours 39 minutes to 19 hours 6 minutes per day.

Monthly average temperatures in Nahanni Butte, Canada

The warmest months in Nahanni Butte are June, July and August, with daily mean temperatures ranging from 14 to 16 °C (58 - 62 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -20 to -20 °C (-4 - -3 °F) throughout the day. On average each year, Nahanni Butte experiences 14 days above 25 °C (77.0 °F) and 200 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Nahanni Butte. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum2°C
(36°F)		6°C
(43°F)		14°C
(58°F)		19°C
(67°F)		31°C
(87°F)		35°C
(96°F)		32°C
(89°F)		33°C
(91°F)		28°C
(83°F)		18°C
(65°F)		5°C
(41°F)		3°C
(37°F)
Mean maximum-3°C
(27°F)		-0°C
(32°F)		8°C
(47°F)		15°C
(60°F)		24°C
(76°F)		28°C
(83°F)		29°C
(84°F)		30°C
(86°F)		22°C
(73°F)		15°C
(59°F)		1°C
(34°F)		-5°C
(24°F)
Average high-17°C
(1°F)		-14°C
(6°F)		-5°C
(22°F)		4°C
(40°F)		15°C
(59°F)		19°C
(67°F)		22°C
(71°F)		20°C
(68°F)		14°C
(58°F)		4°C
(39°F)		-11°C
(13°F)		-17°C
(2°F)
Daily mean-20°C
(-4°F)		-20°C
(-3°F)		-12°C
(10°F)		-2°C
(29°F)		9°C
(49°F)		14°C
(58°F)		16°C
(62°F)		14°C
(58°F)		8°C
(47°F)		-0°C
(32°F)		-14°C
(7°F)		-20°C
(-3°F)
Average low-24°C
(-10°F)		-24°C
(-11°F)		-18°C
(-1°F)		-8°C
(18°F)		3°C
(37°F)		9°C
(48°F)		10°C
(51°F)		8°C
(48°F)		3°C
(37°F)		-4°C
(25°F)		-18°C
(-0°F)		-23°C
(-9°F)
Mean minimum-39°C
(-38°F)		-37°C
(-34°F)		-31°C
(-24°F)		-21°C
(-6°F)		-4°C
(25°F)		4°C
(39°F)		5°C
(42°F)		2°C
(36°F)		-4°C
(25°F)		-11°C
(12°F)		-28°C
(-18°F)		-35°C
(-31°F)
Minimum-43°C
(-45°F)		-40°C
(-39°F)		-37°C
(-34°F)		-26°C
(-15°F)		-7°C
(20°F)		2°C
(37°F)		4°C
(39°F)		-1°C
(31°F)		-9°C
(17°F)		-18°C
(0°F)		-32°C
(-26°F)		-44°C
(-48°F)

Compare climate in Nahanni Butte with other places

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

Monthly average precipitation in Nahanni Butte, Canada

Nahanni Butte usually has the most precipitation in June, July and August, with an average of 12 rainy days and 102 mm (4.0 inches) of precipitation per month. The driest months in Nahanni Butte are February, April and December. On average, 18 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Nahanni Butte. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)23 (0.9)19 (0.8)25 (1.0)19 (0.7)37 (1.5)113 (4.5)84 (3.3)109 (4.3)35 (1.4)36 (1.4)36 (1.4)17 (0.7)
Average precipitation days (≥ 1 mm)7566813121198105

Monthly sunshine hours in Nahanni Butte, Canada

The sunniest months in Nahanni Butte are April, May and July, when the sun shines an average of 10 hours 36 minutes a day. Least sunny months in Nahanni Butte: January, November and December receive an average of 2 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nahanni Butte. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours6714022629334029034127724616810588
Mean daily daylight hours6h 33m9h 3m11h 53m14h 47m17h 30m19h 6m18h 10m15h 37m12h 47m9h 56m7h 13m5h 39m

Solar UV radiation in Nahanni Butte, Canada

Nahanni Butte experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 6 - 6, which corresponds to the 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 Nahanni Butte UV Index data.

Average daily maximum UV levels by month for Nahanni Butte. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113466664211