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Monthly climate in Thessalon, Ontario, Canada

Last updated: May 6, 2024

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, Ontario, 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, Ontario, Canada.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 4°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 maximum 2°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, Ontario, Canada with other places around the world.

Monthly average precipitation in Thessalon, Ontario, 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, Ontario, Canada.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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) 10 12 10 13 9 9 9 11 11 15 12 14

Monthly sunshine hours in Thessalon, Ontario, 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, Ontario, Canada.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 103 153 236 242 303 320 346 320 253 188 136 116
Mean daily daylight hours 9h 4m 10h 20m 11h 57m 13h 35m 15h 0m 15h 42m 15h 19m 14h 3m 12h 28m 10h 51m 9h 24m 8h 39m

Solar UV radiation in Thessalon, Ontario, 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, Ontario, Canada.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 3 5 7 9 9 9 8 7 5 3 2