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Monthly climate in Grenfell, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Grenfell features a humid continental climate (Dfb). Temperatures typically range between -16 °C (4 °F) and 19 °C (67 °F) through the year, but rarely can drop to -41 °C (-42 °F) or can rise to as high as 37 °C (100 °F). The average annual precipitation amounts to about 468 mm (18.4 inches) and receives 74 rainy days on the 1 mm (0.04 inches) threshold annually. Grenfell enjoys an average of 3049 hours of sunshine throughout the year, and daylight varies from 8 hours 4 minutes to 16 hours 20 minutes per day.

Monthly average temperatures in Grenfell, Canada

The warmest months in Grenfell are June, July and August, with daily mean temperatures ranging from 17 to 19 °C (62 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -16 to -10 °C (4 - 14 °F) throughout the day. On average each year, Grenfell experiences 39 days above 25 °C (77.0 °F) and 186 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Grenfell. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum4°C
(40°F)		6°C
(42°F)		16°C
(61°F)		24°C
(76°F)		31°C
(88°F)		33°C
(92°F)		33°C
(92°F)		37°C
(100°F)		31°C
(88°F)		28°C
(82°F)		18°C
(65°F)		6°C
(43°F)
Mean maximum3°C
(37°F)		2°C
(36°F)		11°C
(52°F)		20°C
(68°F)		28°C
(83°F)		28°C
(83°F)		32°C
(89°F)		34°C
(93°F)		29°C
(84°F)		22°C
(73°F)		10°C
(51°F)		4°C
(40°F)
Average high-9°C
(17°F)		-10°C
(14°F)		-0°C
(32°F)		8°C
(46°F)		18°C
(64°F)		22°C
(73°F)		25°C
(78°F)		24°C
(76°F)		18°C
(65°F)		9°C
(48°F)		-1°C
(30°F)		-6°C
(21°F)
Daily mean-13°C
(8°F)		-16°C
(4°F)		-5°C
(23°F)		2°C
(35°F)		11°C
(52°F)		17°C
(62°F)		19°C
(67°F)		17°C
(63°F)		12°C
(54°F)		3°C
(38°F)		-5°C
(23°F)		-10°C
(14°F)
Average low-18°C
(0°F)		-20°C
(-4°F)		-10°C
(14°F)		-4°C
(24°F)		4°C
(39°F)		10°C
(51°F)		12°C
(55°F)		10°C
(50°F)		6°C
(43°F)		-2°C
(29°F)		-9°C
(16°F)		-14°C
(6°F)
Mean minimum-34°C
(-28°F)		-34°C
(-28°F)		-26°C
(-14°F)		-15°C
(6°F)		-5°C
(24°F)		5°C
(41°F)		7°C
(46°F)		4°C
(40°F)		-1°C
(30°F)		-11°C
(12°F)		-19°C
(-3°F)		-32°C
(-25°F)
Minimum-38°C
(-37°F)		-41°C
(-42°F)		-30°C
(-22°F)		-23°C
(-9°F)		-8°C
(18°F)		3°C
(38°F)		4°C
(40°F)		2°C
(37°F)		-5°C
(23°F)		-15°C
(6°F)		-22°C
(-8°F)		-38°C
(-36°F)

Compare climate in Grenfell with other places

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

Monthly average precipitation in Grenfell, Canada

Grenfell usually has the most precipitation in June, July and September, with an average of 8 rainy days and 71 mm (2.8 inches) of precipitation per month. The driest months in Grenfell are January, February and December. On average, 16 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grenfell. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)14 (0.6)13 (0.5)26 (1.0)30 (1.2)43 (1.7)100 (3.9)55 (2.2)50 (2.0)57 (2.2)31 (1.2)28 (1.1)21 (0.8)
Average precipitation days (≥ 1 mm)435589967675

Monthly sunshine hours in Grenfell, Canada

The sunniest months in Grenfell are May, June and July, when the sun shines an average of 11 hours 47 minutes a day. Least sunny months in Grenfell: January, November and December receive an average of 4 hours 36 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grenfell. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours131208247283349343391333251215146146
Mean daily daylight hours8h 33m10h 4m11h 56m13h 50m15h 30m16h 20m15h 52m14h 23m12h 32m10h 39m8h 57m8h 4m

Solar UV radiation in Grenfell, Canada

Grenfell experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 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 Grenfell UV Index data.

Average daily maximum UV levels by month for Grenfell. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)245689987421