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Monthly climate in Fermont, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Fermont features a subarctic climate (Dfc). Temperatures typically range between -21 °C (-5 °F) and 14 °C (58 °F) through the year, but rarely can drop to -41 °C (-42 °F) or can rise to as high as 28 °C (83 °F). The average annual precipitation amounts to about 1054 mm (41.5 inches) and receives 174 rainy days on the 1 mm (0.04 inches) threshold annually. Fermont enjoys an average of 2116 hours of sunshine throughout the year, and daylight varies from 7 hours 40 minutes to 16 hours 47 minutes per day.

Monthly average temperatures in Fermont, Canada

The warmest months in Fermont are June, July and August, with daily mean temperatures ranging from 10 to 14 °C (49 - 58 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -21 to -15 °C (-5 - 6 °F) throughout the day. On average each year, Fermont experiences 3 days above 25 °C (77.0 °F) and 217 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Fermont. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum2°C
(36°F)		1°C
(34°F)		8°C
(46°F)		11°C
(52°F)		22°C
(72°F)		26°C
(78°F)		28°C
(83°F)		27°C
(81°F)		24°C
(75°F)		17°C
(63°F)		9°C
(49°F)		7°C
(45°F)
Mean maximum-3°C
(26°F)		-3°C
(26°F)		3°C
(37°F)		8°C
(47°F)		17°C
(63°F)		21°C
(71°F)		27°C
(80°F)		25°C
(77°F)		21°C
(70°F)		15°C
(59°F)		5°C
(41°F)		1°C
(35°F)
Average high-16°C
(3°F)		-15°C
(5°F)		-8°C
(17°F)		-1°C
(31°F)		7°C
(44°F)		14°C
(58°F)		19°C
(66°F)		18°C
(64°F)		11°C
(53°F)		4°C
(40°F)		-5°C
(24°F)		-11°C
(12°F)
Daily mean-21°C
(-5°F)		-20°C
(-4°F)		-13°C
(8°F)		-5°C
(24°F)		2°C
(36°F)		10°C
(49°F)		14°C
(58°F)		13°C
(57°F)		8°C
(46°F)		1°C
(34°F)		-7°C
(19°F)		-15°C
(6°F)
Average low-25°C
(-12°F)		-25°C
(-13°F)		-18°C
(-1°F)		-9°C
(16°F)		-2°C
(28°F)		5°C
(41°F)		10°C
(49°F)		9°C
(49°F)		4°C
(39°F)		-2°C
(28°F)		-10°C
(13°F)		-19°C
(-1°F)
Mean minimum-36°C
(-32°F)		-34°C
(-30°F)		-30°C
(-21°F)		-21°C
(-6°F)		-11°C
(13°F)		-2°C
(28°F)		4°C
(40°F)		4°C
(39°F)		-3°C
(28°F)		-11°C
(13°F)		-19°C
(-3°F)		-32°C
(-26°F)
Minimum-41°C
(-42°F)		-39°C
(-37°F)		-33°C
(-28°F)		-28°C
(-19°F)		-13°C
(8°F)		-5°C
(23°F)		2°C
(36°F)		3°C
(38°F)		-4°C
(25°F)		-20°C
(-3°F)		-27°C
(-16°F)		-34°C
(-29°F)

Compare climate in Fermont with other places

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

Monthly average precipitation in Fermont, Canada

Fermont usually has the most precipitation in July, August and October, with an average of 18 rainy days and 129 mm (5.1 inches) of precipitation per month. The driest months in Fermont are January, February and March. On average, 44 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Fermont. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)41 (1.6)39 (1.5)51 (2.0)73 (2.9)70 (2.8)112 (4.4)122 (4.8)148 (5.8)115 (4.5)115 (4.5)93 (3.6)74 (2.9)
Average precipitation days (≥ 1 mm)8911121418182018181612

Monthly sunshine hours in Fermont, Canada

The sunniest months in Fermont are March, July and August, when the sun shines an average of 7 hours 56 minutes a day. Least sunny months in Fermont: January, November and December receive an average of 3 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Fermont. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours10117621620919721428323717612478100
Mean daily daylight hours8h 13m9h 53m11h 55m14h 0m15h 49m16h 47m16h 15m14h 36m12h 35m10h 31m8h 40m7h 40m

Solar UV radiation in Fermont, Canada

Fermont experiences the highest level of ultraviolet (UV) radiation in April, May and June, 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 Fermont UV Index data.

Average daily maximum UV levels by month for Fermont. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)135898776421