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Monthly climate in Deline, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Deline features a subarctic climate (Dfc). Temperatures typically range between -24 °C (-10 °F) and 15 °C (59 °F) through the year, but rarely can drop to -44 °C (-47 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 314 mm (12.4 inches) and receives 78 rainy days on the 1 mm (0.04 inches) threshold annually. Deline enjoys an average of 2541 hours of sunshine throughout the year, and daylight varies from 3 hours 40 minutes to 21 hours 50 minutes per day.

Monthly average temperatures in Deline, Canada

The warmest months in Deline are June, July and August, with daily mean temperatures ranging from 11 to 15 °C (52 - 59 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -24 to -22 °C (-10 - -7 °F) throughout the day. On average each year, Deline experiences 5 days above 25 °C (77.0 °F) and 213 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Deline. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum2°C
(36°F)		-1°C
(30°F)		11°C
(53°F)		12°C
(55°F)		23°C
(74°F)		30°C
(86°F)		28°C
(83°F)		30°C
(86°F)		23°C
(74°F)		13°C
(55°F)		0°C
(33°F)		7°C
(45°F)
Mean maximum-5°C
(24°F)		-7°C
(20°F)		2°C
(36°F)		8°C
(47°F)		19°C
(66°F)		24°C
(75°F)		26°C
(80°F)		27°C
(82°F)		19°C
(66°F)		9°C
(48°F)		-1°C
(31°F)		-3°C
(27°F)
Average high-21°C
(-5°F)		-20°C
(-3°F)		-12°C
(10°F)		-4°C
(26°F)		9°C
(48°F)		15°C
(60°F)		19°C
(67°F)		17°C
(63°F)		10°C
(51°F)		1°C
(34°F)		-12°C
(10°F)		-19°C
(-2°F)
Daily mean-24°C
(-10°F)		-23°C
(-10°F)		-17°C
(1°F)		-9°C
(17°F)		4°C
(40°F)		11°C
(52°F)		15°C
(59°F)		13°C
(56°F)		7°C
(44°F)		-1°C
(30°F)		-15°C
(5°F)		-22°C
(-7°F)
Average low-27°C
(-16°F)		-27°C
(-17°F)		-22°C
(-7°F)		-14°C
(8°F)		0°C
(32°F)		7°C
(44°F)		10°C
(51°F)		9°C
(48°F)		3°C
(38°F)		-4°C
(26°F)		-18°C
(-1°F)		-25°C
(-12°F)
Mean minimum-39°C
(-38°F)		-38°C
(-36°F)		-33°C
(-28°F)		-26°C
(-15°F)		-9°C
(17°F)		1°C
(34°F)		5°C
(41°F)		2°C
(36°F)		-3°C
(27°F)		-11°C
(12°F)		-30°C
(-22°F)		-38°C
(-36°F)
Minimum-42°C
(-43°F)		-43°C
(-45°F)		-38°C
(-36°F)		-34°C
(-29°F)		-12°C
(12°F)		-1°C
(31°F)		3°C
(38°F)		-0°C
(32°F)		-7°C
(20°F)		-18°C
(-1°F)		-34°C
(-29°F)		-44°C
(-47°F)

Compare climate in Deline with other places

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

Monthly average precipitation in Deline, Canada

Deline usually has the most precipitation in June, July and August, with an average of 9 rainy days and 44 mm (1.7 inches) of precipitation per month. The driest months in Deline are January, March and April. On average, 15 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Deline. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)16 (0.6)17 (0.7)15 (0.6)15 (0.6)23 (0.9)40 (1.6)36 (1.4)58 (2.3)27 (1.1)26 (1.0)22 (0.9)20 (0.8)
Average precipitation days (≥ 1 mm)5544689107866

Monthly sunshine hours in Deline, Canada

The sunniest months in Deline are May, June and July, when the sun shines an average of 12 hours 5 minutes a day. Least sunny months in Deline: January, November and December receive an average of 1 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Deline. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours521192333023663513932762141137639
Mean daily daylight hours5h 4m8h 24m11h 51m15h 22m19h 0m21h 50m20h 4m16h 26m12h 56m9h 29m6h 2m3h 40m

Solar UV radiation in Deline, Canada

Deline experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 5, which corresponds to the Moderate 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 Deline UV Index data.

Average daily maximum UV levels by month for Deline. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)112445553211