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Monthly climate in Lachute, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Lachute features a humid continental climate (Dfb). Temperatures typically range between -10 °C (15 °F) and 21 °C (69 °F) through the year, but rarely can drop to -32 °C (-25 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 1321 mm (52.0 inches) and receives 148 rainy days on the 1 mm (0.04 inches) threshold annually. Lachute enjoys an average of 2727 hours of sunshine throughout the year, and daylight varies from 8 hours 43 minutes to 15 hours 38 minutes per day.

Monthly average temperatures in Lachute, Canada

The warmest months in Lachute are June, July and August, with daily mean temperatures ranging from 18 to 21 °C (64 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -10 to -7 °C (15 - 20 °F) throughout the day. On average each year, Lachute experiences 44 days above 25 °C (77.0 °F) and 151 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Lachute. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(53°F)		10°C
(51°F)		17°C
(63°F)		23°C
(74°F)		34°C
(94°F)		32°C
(90°F)		34°C
(93°F)		31°C
(88°F)		31°C
(88°F)		25°C
(78°F)		21°C
(70°F)		13°C
(55°F)
Mean maximum5°C
(41°F)		7°C
(45°F)		11°C
(52°F)		19°C
(67°F)		29°C
(85°F)		30°C
(85°F)		31°C
(88°F)		29°C
(85°F)		27°C
(81°F)		22°C
(72°F)		14°C
(58°F)		9°C
(48°F)
Average high-6°C
(22°F)		-4°C
(26°F)		1°C
(34°F)		9°C
(49°F)		18°C
(65°F)		23°C
(73°F)		26°C
(79°F)		24°C
(76°F)		20°C
(68°F)		13°C
(55°F)		3°C
(38°F)		-3°C
(27°F)
Daily mean-10°C
(15°F)		-8°C
(17°F)		-3°C
(26°F)		4°C
(40°F)		13°C
(55°F)		18°C
(64°F)		21°C
(69°F)		19°C
(67°F)		15°C
(59°F)		8°C
(47°F)		-0°C
(32°F)		-7°C
(20°F)
Average low-14°C
(7°F)		-13°C
(9°F)		-8°C
(19°F)		0°C
(32°F)		7°C
(44°F)		12°C
(54°F)		15°C
(60°F)		14°C
(58°F)		10°C
(50°F)		4°C
(40°F)		-4°C
(25°F)		-11°C
(13°F)
Mean minimum-27°C
(-16°F)		-26°C
(-14°F)		-21°C
(-5°F)		-8°C
(18°F)		-1°C
(31°F)		6°C
(43°F)		10°C
(50°F)		8°C
(46°F)		3°C
(37°F)		-3°C
(27°F)		-16°C
(4°F)		-23°C
(-10°F)
Minimum-32°C
(-25°F)		-28°C
(-17°F)		-24°C
(-11°F)		-13°C
(9°F)		-3°C
(27°F)		1°C
(35°F)		8°C
(47°F)		7°C
(44°F)		-1°C
(31°F)		-6°C
(21°F)		-22°C
(-6°F)		-28°C
(-18°F)

Compare climate in Lachute with other places

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

Monthly average precipitation in Lachute, Canada

Lachute usually has the most precipitation in April, July and October, with an average of 13 rainy days and 129 mm (5.1 inches) of precipitation per month. The driest months in Lachute are January, February and March. On average, 92 mm (3.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lachute. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)88 (3.5)93 (3.7)95 (3.8)121 (4.8)115 (4.5)116 (4.6)129 (5.1)117 (4.6)98 (3.8)137 (5.4)115 (4.5)97 (3.8)
Average precipitation days (≥ 1 mm)111211131213141410121412

Monthly sunshine hours in Lachute, Canada

The sunniest months in Lachute are June, July and August, when the sun shines an average of 10 hours 34 minutes a day. Least sunny months in Lachute: January, November and December receive an average of 4 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lachute. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours115152235224280315343314274190142136
Mean daily daylight hours9h 7m10h 22m11h 57m13h 34m14h 56m15h 38m15h 15m14h 1m12h 28m10h 52m9h 27m8h 43m

Solar UV radiation in Lachute, Canada

Lachute 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 Lachute UV Index data.

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