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Monthly climate in Thessalon, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Thessalon features a humid continental climate (Dfb). Temperatures typically range between -7 °C (20 °F) and 19 °C (67 °F) through the year, but rarely can drop to -28 °C (-19 °F) or can rise to as high as 26 °C (79 °F). The average annual precipitation amounts to about 1124 mm (44.3 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Thessalon enjoys an average of 2720 hours of sunshine throughout the year, and daylight varies from 8 hours 39 minutes to 15 hours 42 minutes per day.

Monthly average temperatures in Thessalon, Canada

The warmest months in Thessalon are July, August and September, with daily mean temperatures ranging from 15 to 19 °C (60 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -3 °C (20 - 27 °F) throughout the day. On average each year, Thessalon experiences 0 days above 25 °C (77.0 °F) and 131 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Thessalon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum4°C
(39°F)		4°C
(40°F)		7°C
(45°F)		10°C
(50°F)		17°C
(62°F)		22°C
(72°F)		26°C
(79°F)		26°C
(79°F)		22°C
(72°F)		19°C
(66°F)		13°C
(55°F)		10°C
(50°F)
Mean maximum2°C
(36°F)		3°C
(38°F)		5°C
(41°F)		8°C
(47°F)		14°C
(58°F)		19°C
(67°F)		25°C
(77°F)		24°C
(76°F)		21°C
(70°F)		18°C
(64°F)		9°C
(49°F)		6°C
(43°F)
Average high-4°C
(25°F)		-3°C
(26°F)		-0°C
(32°F)		4°C
(39°F)		9°C
(48°F)		16°C
(61°F)		21°C
(70°F)		21°C
(70°F)		17°C
(63°F)		11°C
(53°F)		4°C
(40°F)		-1°C
(31°F)
Daily mean-7°C
(20°F)		-6°C
(21°F)		-2°C
(28°F)		2°C
(35°F)		7°C
(45°F)		14°C
(57°F)		19°C
(67°F)		19°C
(66°F)		15°C
(60°F)		9°C
(49°F)		2°C
(36°F)		-3°C
(27°F)
Average low-9°C
(16°F)		-8°C
(17°F)		-5°C
(24°F)		-0°C
(32°F)		5°C
(42°F)		12°C
(54°F)		17°C
(63°F)		17°C
(63°F)		14°C
(57°F)		8°C
(47°F)		0°C
(32°F)		-6°C
(22°F)
Mean minimum-21°C
(-5°F)		-18°C
(-1°F)		-13°C
(9°F)		-6°C
(21°F)		1°C
(33°F)		8°C
(46°F)		14°C
(57°F)		13°C
(56°F)		9°C
(48°F)		2°C
(35°F)		-10°C
(15°F)		-15°C
(5°F)
Minimum-28°C
(-19°F)		-23°C
(-9°F)		-16°C
(4°F)		-10°C
(15°F)		-2°C
(28°F)		6°C
(43°F)		12°C
(54°F)		13°C
(56°F)		7°C
(45°F)		-4°C
(25°F)		-13°C
(8°F)		-19°C
(-3°F)

Compare climate in Thessalon with other places

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

Monthly average precipitation in Thessalon, Canada

Thessalon usually has the most precipitation in August, September and October, with an average of 12 rainy days and 128 mm (5.0 inches) of precipitation per month. The driest months in Thessalon are January, February and March. On average, 63 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Thessalon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)51 (2.0)69 (2.7)68 (2.7)92 (3.6)89 (3.5)110 (4.3)92 (3.6)111 (4.4)124 (4.9)148 (5.8)86 (3.4)84 (3.3)
Average precipitation days (≥ 1 mm)101210139991111151214

Monthly sunshine hours in Thessalon, Canada

The sunniest months in Thessalon are June, July and August, when the sun shines an average of 10 hours 44 minutes a day. Least sunny months in Thessalon: January, November and December receive an average of 3 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Thessalon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours103153236242303320346320253188136116
Mean daily daylight hours9h 4m10h 20m11h 57m13h 35m15h 0m15h 42m15h 19m14h 3m12h 28m10h 51m9h 24m8h 39m

Solar UV radiation in Thessalon, Canada

Thessalon experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 9 - 9, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Thessalon UV Index data.

Average daily maximum UV levels by month for Thessalon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235799987532