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Monthly climate in Walnut Grove, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Walnut Grove features a oceanic climate (Cfb). Temperatures typically range between 2 °C (36 °F) and 18 °C (65 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 40 °C (105 °F). The average annual precipitation amounts to about 2649 mm (104.3 inches) and receives 181 rainy days on the 1 mm (0.04 inches) threshold annually. Walnut Grove enjoys an average of 2723 hours of sunshine throughout the year, and daylight varies from 8 hours 14 minutes to 16 hours 10 minutes per day.

Monthly average temperatures in Walnut Grove, Canada

The warmest months in Walnut Grove are June, July and August, with daily mean temperatures ranging from 15 to 18 °C (59 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 3 °C (36 - 37 °F) throughout the day. On average each year, Walnut Grove experiences 22 days above 25 °C (77.0 °F) and 46 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Walnut Grove. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(51°F)		12°C
(53°F)		24°C
(75°F)		26°C
(79°F)		28°C
(82°F)		40°C
(105°F)		33°C
(92°F)		36°C
(96°F)		33°C
(91°F)		23°C
(74°F)		15°C
(59°F)		12°C
(53°F)
Mean maximum10°C
(49°F)		10°C
(50°F)		16°C
(60°F)		21°C
(69°F)		25°C
(77°F)		28°C
(83°F)		30°C
(87°F)		32°C
(90°F)		28°C
(82°F)		18°C
(65°F)		14°C
(57°F)		10°C
(50°F)
Average high5°C
(41°F)		5°C
(41°F)		9°C
(49°F)		13°C
(55°F)		17°C
(63°F)		19°C
(67°F)		23°C
(73°F)		23°C
(74°F)		19°C
(66°F)		13°C
(55°F)		8°C
(47°F)		5°C
(41°F)
Daily mean3°C
(37°F)		2°C
(36°F)		5°C
(42°F)		8°C
(47°F)		12°C
(55°F)		15°C
(59°F)		18°C
(64°F)		18°C
(65°F)		15°C
(59°F)		9°C
(49°F)		6°C
(43°F)		3°C
(37°F)
Average low1°C
(34°F)		-1°C
(31°F)		2°C
(36°F)		4°C
(40°F)		8°C
(46°F)		10°C
(51°F)		12°C
(55°F)		13°C
(56°F)		11°C
(52°F)		6°C
(43°F)		3°C
(38°F)		1°C
(34°F)
Mean minimum-7°C
(19°F)		-8°C
(18°F)		-3°C
(26°F)		-1°C
(31°F)		3°C
(38°F)		6°C
(43°F)		9°C
(48°F)		9°C
(49°F)		7°C
(45°F)		0°C
(33°F)		-3°C
(28°F)		-8°C
(18°F)
Minimum-11°C
(12°F)		-12°C
(11°F)		-5°C
(24°F)		-2°C
(29°F)		2°C
(36°F)		5°C
(41°F)		8°C
(47°F)		9°C
(48°F)		6°C
(43°F)		-3°C
(27°F)		-5°C
(23°F)		-17°C
(2°F)

Compare climate in Walnut Grove with other places

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

Monthly average precipitation in Walnut Grove, Canada

Walnut Grove usually has the most precipitation in January, November and December, with an average of 18 rainy days and 375 mm (14.8 inches) of precipitation per month. The driest months in Walnut Grove are June, July and August. On average, 70 mm (2.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Walnut Grove. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)338 (13.3)226 (8.9)242 (9.5)196 (7.7)110 (4.3)108 (4.3)52 (2.1)49 (1.9)231 (9.1)308 (12.1)440 (17.3)347 (13.7)
Average precipitation days (≥ 1 mm)1720181712136715172019

Monthly sunshine hours in Walnut Grove, Canada

The sunniest months in Walnut Grove are June, July and August, when the sun shines an average of 11 hours 40 minutes a day. Least sunny months in Walnut Grove: January, November and December receive an average of 3 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Walnut Grove. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours8314220423633134038634625018012396
Mean daily daylight hours8h 42m10h 9m11h 56m13h 46m15h 21m16h 10m15h 43m14h 17m12h 31m10h 42m9h 4m8h 14m

Solar UV radiation in Walnut Grove, Canada

Walnut Grove 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 Walnut Grove UV Index data.

Average daily maximum UV levels by month for Walnut Grove. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)234678986421