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Monthly climate in Laval, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Laval features a humid continental climate (Dfb). Temperatures typically range between -8 °C (18 °F) and 22 °C (73 °F) through the year, but rarely can drop to -31 °C (-24 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 1161 mm (45.7 inches) and receives 140 rainy days on the 1 mm (0.04 inches) threshold annually. Laval enjoys an average of 2775 hours of sunshine throughout the year, and daylight varies from 8 hours 45 minutes to 15 hours 36 minutes per day.

Monthly average temperatures in Laval, Canada

The warmest months in Laval are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (67 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -4 °C (18 - 24 °F) throughout the day. On average each year, Laval experiences 51 days above 25 °C (77.0 °F) and 126 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Laval. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(50°F)		11°C
(53°F)		19°C
(66°F)		22°C
(72°F)		30°C
(87°F)		32°C
(89°F)		34°C
(93°F)		32°C
(89°F)		31°C
(88°F)		25°C
(77°F)		20°C
(69°F)		15°C
(59°F)
Mean maximum5°C
(41°F)		7°C
(45°F)		13°C
(55°F)		19°C
(66°F)		28°C
(83°F)		29°C
(85°F)		31°C
(89°F)		30°C
(86°F)		28°C
(82°F)		22°C
(73°F)		15°C
(60°F)		10°C
(51°F)
Average high-4°C
(24°F)		-3°C
(28°F)		2°C
(36°F)		10°C
(50°F)		18°C
(65°F)		23°C
(74°F)		27°C
(80°F)		26°C
(79°F)		21°C
(71°F)		14°C
(58°F)		5°C
(41°F)		-1°C
(30°F)
Daily mean-8°C
(18°F)		-7°C
(20°F)		-2°C
(29°F)		6°C
(42°F)		13°C
(56°F)		19°C
(67°F)		22°C
(73°F)		21°C
(71°F)		17°C
(62°F)		10°C
(51°F)		2°C
(36°F)		-4°C
(24°F)
Average low-12°C
(11°F)		-11°C
(12°F)		-6°C
(22°F)		2°C
(36°F)		9°C
(48°F)		14°C
(58°F)		18°C
(65°F)		17°C
(63°F)		13°C
(55°F)		7°C
(45°F)		-1°C
(30°F)		-8°C
(19°F)
Mean minimum-25°C
(-12°F)		-22°C
(-8°F)		-19°C
(-2°F)		-6°C
(22°F)		2°C
(36°F)		8°C
(47°F)		13°C
(56°F)		11°C
(52°F)		6°C
(43°F)		0°C
(33°F)		-11°C
(13°F)		-19°C
(-2°F)
Minimum-31°C
(-24°F)		-24°C
(-10°F)		-22°C
(-8°F)		-10°C
(15°F)		0°C
(33°F)		4°C
(40°F)		12°C
(54°F)		10°C
(50°F)		3°C
(38°F)		-3°C
(26°F)		-17°C
(2°F)		-27°C
(-16°F)

Compare climate in Laval with other places

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

Monthly average precipitation in Laval, Canada

Laval usually has the most precipitation in April, October and November, with an average of 12 rainy days and 123 mm (4.8 inches) of precipitation per month. The driest months in Laval are January, March and September. On average, 79 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Laval. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)84 (3.3)85 (3.3)85 (3.3)120 (4.7)96 (3.8)97 (3.8)89 (3.5)98 (3.9)69 (2.7)132 (5.2)115 (4.5)89 (3.5)
Average precipitation days (≥ 1 mm)10121112111113139131312

Monthly sunshine hours in Laval, Canada

The sunniest months in Laval are June, July and August, when the sun shines an average of 10 hours 45 minutes a day. Least sunny months in Laval: January, November and December receive an average of 4 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Laval. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours118155235225285321342325280195146143
Mean daily daylight hours9h 9m10h 23m11h 57m13h 33m14h 54m15h 36m15h 13m14h 0m12h 28m10h 53m9h 28m8h 45m

Solar UV radiation in Laval, Canada

Laval 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, November 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 Laval UV Index data.

Average daily maximum UV levels by month for Laval. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)245799887532