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Monthly climate in Thompson, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Thompson features a subarctic climate (Dfc). Temperatures typically range between -21 °C (-6 °F) and 18 °C (65 °F) through the year, but rarely can drop to -44 °C (-46 °F) or can rise to as high as 36 °C (98 °F). The average annual precipitation amounts to about 628 mm (24.7 inches) and receives 107 rainy days on the 1 mm (0.04 inches) threshold annually. Thompson enjoys an average of 2532 hours of sunshine throughout the year, and daylight varies from 7 hours 5 minutes to 17 hours 25 minutes per day.

Monthly average temperatures in Thompson, Canada

The warmest months in Thompson are June, July and August, with daily mean temperatures ranging from 14 to 18 °C (57 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -21 to -19 °C (-6 - -2 °F) throughout the day. On average each year, Thompson experiences 19 days above 25 °C (77.0 °F) and 205 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Thompson. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum2°C
(36°F)		3°C
(38°F)		11°C
(51°F)		16°C
(62°F)		31°C
(88°F)		30°C
(87°F)		36°C
(98°F)		31°C
(88°F)		25°C
(78°F)		21°C
(70°F)		5°C
(42°F)		2°C
(36°F)
Mean maximum-4°C
(25°F)		-2°C
(28°F)		7°C
(44°F)		13°C
(55°F)		23°C
(74°F)		25°C
(77°F)		32°C
(90°F)		29°C
(84°F)		23°C
(73°F)		14°C
(58°F)		1°C
(35°F)		-3°C
(26°F)
Average high-17°C
(2°F)		-16°C
(4°F)		-5°C
(23°F)		2°C
(36°F)		12°C
(53°F)		19°C
(66°F)		23°C
(74°F)		20°C
(69°F)		13°C
(56°F)		4°C
(40°F)		-9°C
(17°F)		-16°C
(4°F)
Daily mean-21°C
(-5°F)		-21°C
(-6°F)		-11°C
(12°F)		-4°C
(26°F)		6°C
(43°F)		14°C
(57°F)		18°C
(65°F)		15°C
(60°F)		9°C
(49°F)		1°C
(34°F)		-12°C
(11°F)		-19°C
(-2°F)
Average low-25°C
(-12°F)		-27°C
(-16°F)		-17°C
(1°F)		-9°C
(15°F)		0°C
(33°F)		9°C
(48°F)		13°C
(56°F)		11°C
(52°F)		5°C
(42°F)		-2°C
(29°F)		-15°C
(5°F)		-23°C
(-9°F)
Mean minimum-37°C
(-33°F)		-38°C
(-36°F)		-30°C
(-22°F)		-22°C
(-7°F)		-7°C
(20°F)		2°C
(36°F)		7°C
(45°F)		5°C
(41°F)		-2°C
(29°F)		-11°C
(12°F)		-29°C
(-19°F)		-37°C
(-35°F)
Minimum-44°C
(-46°F)		-42°C
(-44°F)		-35°C
(-31°F)		-29°C
(-20°F)		-10°C
(14°F)		0°C
(33°F)		4°C
(39°F)		3°C
(37°F)		-7°C
(20°F)		-16°C
(3°F)		-34°C
(-29°F)		-39°C
(-38°F)

Compare climate in Thompson with other places

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

Monthly average precipitation in Thompson, Canada

Thompson usually has the most precipitation in June, July and August, with an average of 12 rainy days and 97 mm (3.8 inches) of precipitation per month. The driest months in Thompson are January, February and December. On average, 22 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Thompson. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)26 (1.0)14 (0.5)31 (1.2)40 (1.6)42 (1.7)92 (3.6)112 (4.4)88 (3.4)64 (2.5)49 (1.9)43 (1.7)27 (1.0)
Average precipitation days (≥ 1 mm)74579121212111198

Monthly sunshine hours in Thompson, Canada

The sunniest months in Thompson are May, June and July, when the sun shines an average of 9 hours 57 minutes a day. Least sunny months in Thompson: January, November and December receive an average of 3 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Thompson. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours97179231260287292335278190132123123
Mean daily daylight hours7h 44m9h 38m11h 54m14h 14m16h 19m17h 25m16h 48m14h 54m12h 39m10h 20m8h 14m7h 5m

Solar UV radiation in Thompson, Canada

Thompson experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 6 - 8, which corresponds to the High / 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 1. For more detailed information, check out our hourly Thompson UV Index data.

Average daily maximum UV levels by month for Thompson. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123568765311