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Monthly climate in Lillooet, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Lillooet features a subarctic climate (Dfc). Temperatures typically range between -8 °C (18 °F) and 16 °C (60 °F) through the year, but rarely can drop to -34 °C (-29 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 758 mm (29.9 inches) and receives 139 rainy days on the 1 mm (0.04 inches) threshold annually. Lillooet enjoys an average of 2828 hours of sunshine throughout the year, and daylight varies from 8 hours 1 minutes to 16 hours 23 minutes per day.

Monthly average temperatures in Lillooet, Canada

The warmest months in Lillooet are June, July and August, with daily mean temperatures ranging from 12 to 16 °C (54 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -7 °C (18 - 20 °F) throughout the day. On average each year, Lillooet experiences 16 days above 25 °C (77.0 °F) and 184 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Lillooet. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum4°C
(39°F)		7°C
(45°F)		15°C
(59°F)		22°C
(71°F)		25°C
(77°F)		37°C
(99°F)		34°C
(94°F)		30°C
(87°F)		27°C
(80°F)		20°C
(69°F)		10°C
(51°F)		4°C
(39°F)
Mean maximum3°C
(38°F)		4°C
(40°F)		9°C
(49°F)		15°C
(59°F)		21°C
(70°F)		26°C
(79°F)		29°C
(85°F)		29°C
(85°F)		25°C
(77°F)		15°C
(59°F)		8°C
(47°F)		3°C
(37°F)
Average high-3°C
(27°F)		-3°C
(26°F)		3°C
(38°F)		7°C
(45°F)		14°C
(58°F)		17°C
(64°F)		22°C
(71°F)		22°C
(71°F)		15°C
(60°F)		7°C
(45°F)		2°C
(35°F)		-4°C
(25°F)
Daily mean-7°C
(20°F)		-8°C
(18°F)		-2°C
(29°F)		2°C
(36°F)		8°C
(47°F)		12°C
(54°F)		16°C
(60°F)		15°C
(60°F)		10°C
(50°F)		3°C
(37°F)		-2°C
(29°F)		-7°C
(19°F)
Average low-11°C
(13°F)		-12°C
(10°F)		-7°C
(20°F)		-2°C
(28°F)		2°C
(36°F)		6°C
(43°F)		9°C
(48°F)		9°C
(48°F)		5°C
(42°F)		-1°C
(31°F)		-5°C
(23°F)		-11°C
(13°F)
Mean minimum-24°C
(-11°F)		-24°C
(-11°F)		-18°C
(0°F)		-8°C
(17°F)		-2°C
(28°F)		1°C
(34°F)		5°C
(41°F)		4°C
(40°F)		-1°C
(31°F)		-8°C
(18°F)		-13°C
(8°F)		-22°C
(-7°F)
Minimum-34°C
(-29°F)		-30°C
(-22°F)		-25°C
(-14°F)		-14°C
(8°F)		-4°C
(25°F)		-0°C
(32°F)		3°C
(38°F)		3°C
(39°F)		-4°C
(26°F)		-14°C
(7°F)		-18°C
(0°F)		-33°C
(-27°F)

Compare climate in Lillooet with other places

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

Monthly average precipitation in Lillooet, Canada

Lillooet usually has the most precipitation in October, November and December, with an average of 15 rainy days and 96 mm (3.8 inches) of precipitation per month. The driest months in Lillooet are May, July and August. On average, 39 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lillooet. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)74 (2.9)67 (2.6)48 (1.9)47 (1.9)38 (1.5)49 (1.9)38 (1.5)40 (1.6)69 (2.7)90 (3.5)110 (4.3)88 (3.5)
Average precipitation days (≥ 1 mm)121313129107711151614

Monthly sunshine hours in Lillooet, Canada

The sunniest months in Lillooet are May, July and August, when the sun shines an average of 11 hours 25 minutes a day. Least sunny months in Lillooet: January, November and December receive an average of 3 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lillooet. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours97162236269340329380341243181129115
Mean daily daylight hours8h 31m10h 3m11h 56m13h 52m15h 32m16h 23m15h 55m14h 24m12h 32m10h 38m8h 55m8h 1m

Solar UV radiation in Lillooet, Canada

Lillooet experiences the highest level of ultraviolet (UV) radiation in June, July 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 exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Lillooet UV Index data.

Average daily maximum UV levels by month for Lillooet. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689987421