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Monthly climate in Mission, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mission features a oceanic climate (Cfb). Temperatures typically range between 0 °C (33 °F) and 18 °C (64 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 2552 mm (100.5 inches) and receives 187 rainy days on the 1 mm (0.04 inches) threshold annually. Mission enjoys an average of 2673 hours of sunshine throughout the year, and daylight varies from 8 hours 15 minutes to 16 hours 8 minutes per day.

Monthly average temperatures in Mission, Canada

The warmest months in Mission are June, July and August, with daily mean temperatures ranging from 15 to 18 °C (59 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 2 °C (33 - 35 °F) throughout the day. On average each year, Mission experiences 23 days above 25 °C (77.0 °F) and 57 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mission. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum9°C
(48°F)		10°C
(50°F)		22°C
(72°F)		26°C
(80°F)		29°C
(84°F)		41°C
(106°F)		34°C
(93°F)		35°C
(95°F)		33°C
(91°F)		23°C
(74°F)		14°C
(58°F)		11°C
(52°F)
Mean maximum8°C
(46°F)		8°C
(47°F)		14°C
(58°F)		20°C
(69°F)		25°C
(77°F)		28°C
(84°F)		31°C
(88°F)		32°C
(91°F)		28°C
(83°F)		18°C
(65°F)		13°C
(55°F)		9°C
(48°F)
Average high4°C
(39°F)		3°C
(38°F)		8°C
(47°F)		12°C
(54°F)		17°C
(62°F)		19°C
(66°F)		22°C
(72°F)		23°C
(73°F)		18°C
(66°F)		12°C
(54°F)		7°C
(45°F)		4°C
(39°F)
Daily mean2°C
(35°F)		0°C
(33°F)		4°C
(40°F)		8°C
(46°F)		12°C
(54°F)		15°C
(59°F)		17°C
(64°F)		18°C
(64°F)		14°C
(58°F)		9°C
(48°F)		5°C
(41°F)		2°C
(35°F)
Average low-0°C
(32°F)		-2°C
(28°F)		1°C
(34°F)		4°C
(39°F)		7°C
(46°F)		10°C
(50°F)		12°C
(54°F)		13°C
(55°F)		11°C
(52°F)		6°C
(42°F)		3°C
(37°F)		-0°C
(32°F)
Mean minimum-9°C
(16°F)		-11°C
(13°F)		-6°C
(22°F)		-2°C
(29°F)		3°C
(37°F)		6°C
(42°F)		9°C
(48°F)		9°C
(48°F)		6°C
(44°F)		-0°C
(32°F)		-3°C
(28°F)		-8°C
(17°F)
Minimum-14°C
(7°F)		-15°C
(6°F)		-9°C
(16°F)		-3°C
(26°F)		2°C
(35°F)		5°C
(41°F)		8°C
(46°F)		8°C
(47°F)		6°C
(42°F)		-2°C
(28°F)		-5°C
(23°F)		-18°C
(-0°F)

Compare climate in Mission with other places

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

Monthly average precipitation in Mission, Canada

Mission usually has the most precipitation in January, November and December, with an average of 19 rainy days and 360 mm (14.2 inches) of precipitation per month. The driest months in Mission are June, July and August. On average, 62 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mission. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)306 (12.1)263 (10.3)235 (9.3)186 (7.3)100 (3.9)91 (3.6)54 (2.1)41 (1.6)199 (7.8)301 (11.9)436 (17.2)339 (13.4)
Average precipitation days (≥ 1 mm)1720191813128815172020

Monthly sunshine hours in Mission, Canada

The sunniest months in Mission are June, July and August, when the sun shines an average of 11 hours 30 minutes a day. Least sunny months in Mission: January, November and December receive an average of 3 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mission. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours8113820023232633238334324717411894
Mean daily daylight hours8h 43m10h 10m11h 56m13h 46m15h 20m16h 8m15h 41m14h 16m12h 31m10h 42m9h 6m8h 15m

Solar UV radiation in Mission, Canada

Mission 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 Mission UV Index data.

Average daily maximum UV levels by month for Mission. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235678986421