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Monthly climate in Montmagny, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Montmagny features a humid continental climate (Dfb). Temperatures typically range between -10 °C (14 °F) and 20 °C (68 °F) through the year, but rarely can drop to -27 °C (-17 °F) or can rise to as high as 32 °C (89 °F). The average annual precipitation amounts to about 1161 mm (45.7 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually. Montmagny enjoys an average of 2844 hours of sunshine throughout the year, and daylight varies from 8 hours 33 minutes to 15 hours 49 minutes per day.

Monthly average temperatures in Montmagny, Canada

The warmest months in Montmagny are June, July and August, with daily mean temperatures ranging from 16 to 20 °C (62 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -10 to -7 °C (14 - 20 °F) throughout the day. On average each year, Montmagny experiences 24 days above 25 °C (77.0 °F) and 152 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Montmagny. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum9°C
(49°F)		6°C
(44°F)		12°C
(55°F)		17°C
(63°F)		29°C
(85°F)		31°C
(89°F)		32°C
(89°F)		30°C
(86°F)		28°C
(82°F)		21°C
(69°F)		18°C
(65°F)		12°C
(54°F)
Mean maximum3°C
(38°F)		4°C
(40°F)		8°C
(46°F)		13°C
(56°F)		26°C
(80°F)		27°C
(81°F)		29°C
(84°F)		28°C
(83°F)		25°C
(77°F)		18°C
(65°F)		12°C
(54°F)		7°C
(46°F)
Average high-7°C
(20°F)		-5°C
(23°F)		-1°C
(31°F)		6°C
(43°F)		16°C
(60°F)		21°C
(70°F)		24°C
(76°F)		23°C
(74°F)		18°C
(65°F)		11°C
(52°F)		2°C
(36°F)		-4°C
(25°F)
Daily mean-10°C
(14°F)		-9°C
(16°F)		-4°C
(24°F)		2°C
(36°F)		11°C
(52°F)		16°C
(62°F)		20°C
(68°F)		19°C
(66°F)		14°C
(57°F)		8°C
(46°F)		-1°C
(31°F)		-7°C
(20°F)
Average low-14°C
(8°F)		-13°C
(9°F)		-8°C
(18°F)		-1°C
(30°F)		6°C
(43°F)		11°C
(53°F)		15°C
(59°F)		15°C
(58°F)		10°C
(50°F)		4°C
(40°F)		-4°C
(26°F)		-10°C
(13°F)
Mean minimum-24°C
(-11°F)		-23°C
(-9°F)		-21°C
(-5°F)		-9°C
(16°F)		-0°C
(32°F)		6°C
(42°F)		10°C
(50°F)		9°C
(48°F)		3°C
(38°F)		-2°C
(29°F)		-15°C
(6°F)		-21°C
(-6°F)
Minimum-27°C
(-17°F)		-25°C
(-13°F)		-25°C
(-12°F)		-14°C
(8°F)		-2°C
(29°F)		3°C
(37°F)		9°C
(48°F)		8°C
(46°F)		0°C
(33°F)		-6°C
(21°F)		-18°C
(-1°F)		-26°C
(-14°F)

Compare climate in Montmagny with other places

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

Monthly average precipitation in Montmagny, Canada

Montmagny usually has the most precipitation in April, October and November, with an average of 13 rainy days and 121 mm (4.8 inches) of precipitation per month. The driest months in Montmagny are February, July and September. On average, 76 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Montmagny. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)92 (3.6)84 (3.3)97 (3.8)118 (4.6)95 (3.8)102 (4.0)79 (3.1)87 (3.4)67 (2.6)124 (4.9)121 (4.8)96 (3.8)
Average precipitation days (≥ 1 mm)111111131414131310141312

Monthly sunshine hours in Montmagny, Canada

The sunniest months in Montmagny are June, July and August, when the sun shines an average of 10 hours 54 minutes a day. Least sunny months in Montmagny: January, November and December receive an average of 4 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Montmagny. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours117190232231308318352332262195146156
Mean daily daylight hours8h 58m10h 17m11h 56m13h 38m15h 5m15h 49m15h 25m14h 7m12h 29m10h 48m9h 19m8h 33m

Solar UV radiation in Montmagny, Canada

Montmagny experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 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 Montmagny UV Index data.

Average daily maximum UV levels by month for Montmagny. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235799886531