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Monthly climate in Grimshaw, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Grimshaw features a subarctic climate (Dfc). Temperatures typically range between -14 °C (7 °F) and 17 °C (62 °F) through the year, but rarely can drop to -41 °C (-41 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 464 mm (18.3 inches) and receives 93 rainy days on the 1 mm (0.04 inches) threshold annually. Grimshaw enjoys an average of 2899 hours of sunshine throughout the year, and daylight varies from 6 hours 59 minutes to 17 hours 32 minutes per day.

Monthly average temperatures in Grimshaw, Canada

The warmest months in Grimshaw are June, July and August, with daily mean temperatures ranging from 15 to 17 °C (60 - 62 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -14 to -12 °C (7 - 11 °F) throughout the day. On average each year, Grimshaw experiences 15 days above 25 °C (77.0 °F) and 184 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Grimshaw. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(44°F)		10°C
(50°F)		12°C
(55°F)		22°C
(72°F)		31°C
(88°F)		37°C
(99°F)		37°C
(99°F)		31°C
(89°F)		27°C
(81°F)		22°C
(71°F)		12°C
(54°F)		8°C
(47°F)
Mean maximum4°C
(40°F)		4°C
(40°F)		9°C
(48°F)		17°C
(63°F)		26°C
(79°F)		28°C
(83°F)		30°C
(87°F)		28°C
(83°F)		23°C
(73°F)		18°C
(65°F)		7°C
(44°F)		4°C
(40°F)
Average high-8°C
(17°F)		-10°C
(15°F)		-1°C
(30°F)		7°C
(44°F)		17°C
(62°F)		20°C
(69°F)		22°C
(72°F)		21°C
(70°F)		15°C
(59°F)		7°C
(45°F)		-3°C
(27°F)		-8°C
(18°F)
Daily mean-12°C
(10°F)		-14°C
(7°F)		-7°C
(20°F)		1°C
(34°F)		11°C
(52°F)		15°C
(60°F)		17°C
(62°F)		15°C
(60°F)		9°C
(49°F)		2°C
(36°F)		-7°C
(20°F)		-12°C
(11°F)
Average low-17°C
(2°F)		-19°C
(-1°F)		-12°C
(11°F)		-4°C
(25°F)		4°C
(40°F)		9°C
(49°F)		11°C
(52°F)		9°C
(49°F)		4°C
(40°F)		-2°C
(29°F)		-11°C
(13°F)		-15°C
(5°F)
Mean minimum-34°C
(-29°F)		-34°C
(-28°F)		-26°C
(-14°F)		-15°C
(4°F)		-3°C
(27°F)		3°C
(38°F)		6°C
(44°F)		4°C
(39°F)		-3°C
(27°F)		-9°C
(15°F)		-22°C
(-7°F)		-29°C
(-20°F)
Minimum-41°C
(-41°F)		-40°C
(-39°F)		-35°C
(-31°F)		-27°C
(-15°F)		-7°C
(20°F)		1°C
(35°F)		4°C
(39°F)		2°C
(36°F)		-6°C
(21°F)		-13°C
(8°F)		-25°C
(-13°F)		-37°C
(-34°F)

Compare climate in Grimshaw with other places

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

Monthly average precipitation in Grimshaw, Canada

Grimshaw usually has the most precipitation in June, July and August, with an average of 11 rainy days and 72 mm (2.8 inches) of precipitation per month. The driest months in Grimshaw are January, April and December. On average, 21 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grimshaw. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)20 (0.8)22 (0.9)23 (0.9)21 (0.8)32 (1.3)74 (2.9)93 (3.7)49 (1.9)43 (1.7)32 (1.3)33 (1.3)22 (0.9)
Average precipitation days (≥ 1 mm)666651113109795

Monthly sunshine hours in Grimshaw, Canada

The sunniest months in Grimshaw are May, June and July, when the sun shines an average of 11 hours 27 minutes a day. Least sunny months in Grimshaw: January, November and December receive an average of 3 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grimshaw. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours96165240288350336366328248206134136
Mean daily daylight hours7h 39m9h 35m11h 55m14h 17m16h 24m17h 32m16h 54m14h 57m12h 39m10h 18m8h 10m6h 59m

Solar UV radiation in Grimshaw, Canada

Grimshaw experiences the highest level of ultraviolet (UV) radiation in June, 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 Grimshaw UV Index data.

Average daily maximum UV levels by month for Grimshaw. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123567765311