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Monthly climate in Merritt, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Merritt features a subarctic climate (Dfc). Temperatures typically range between -6 °C (22 °F) and 16 °C (61 °F) through the year, but rarely can drop to -36 °C (-33 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 699 mm (27.5 inches) and receives 128 rainy days on the 1 mm (0.04 inches) threshold annually. Merritt enjoys an average of 2763 hours of sunshine throughout the year, and daylight varies from 8 hours 7 minutes to 16 hours 17 minutes per day.

Monthly average temperatures in Merritt, Canada

The warmest months in Merritt are June, July and August, with daily mean temperatures ranging from 12 to 16 °C (55 - 61 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -4 °C (22 - 25 °F) throughout the day. On average each year, Merritt experiences 23 days above 25 °C (77.0 °F) and 157 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Merritt. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		7°C
(44°F)		17°C
(63°F)		23°C
(73°F)		25°C
(78°F)		38°C
(101°F)		37°C
(98°F)		32°C
(90°F)		28°C
(84°F)		21°C
(71°F)		12°C
(54°F)		8°C
(47°F)
Mean maximum5°C
(42°F)		5°C
(42°F)		12°C
(53°F)		17°C
(63°F)		23°C
(73°F)		27°C
(81°F)		31°C
(88°F)		31°C
(88°F)		26°C
(80°F)		16°C
(60°F)		10°C
(50°F)		5°C
(42°F)
Average high-1°C
(31°F)		-2°C
(29°F)		5°C
(41°F)		9°C
(49°F)		15°C
(60°F)		18°C
(65°F)		23°C
(73°F)		23°C
(73°F)		17°C
(62°F)		8°C
(47°F)		3°C
(38°F)		-1°C
(30°F)
Daily mean-4°C
(25°F)		-6°C
(22°F)		-0°C
(32°F)		4°C
(39°F)		9°C
(49°F)		12°C
(55°F)		16°C
(61°F)		16°C
(61°F)		11°C
(52°F)		4°C
(39°F)		0°C
(32°F)		-4°C
(25°F)
Average low-7°C
(20°F)		-10°C
(14°F)		-4°C
(25°F)		-0°C
(32°F)		4°C
(39°F)		6°C
(44°F)		9°C
(49°F)		9°C
(49°F)		6°C
(43°F)		-0°C
(32°F)		-2°C
(28°F)		-7°C
(20°F)
Mean minimum-23°C
(-8°F)		-24°C
(-11°F)		-16°C
(4°F)		-5°C
(24°F)		-1°C
(31°F)		2°C
(36°F)		5°C
(41°F)		4°C
(40°F)		0°C
(33°F)		-7°C
(19°F)		-10°C
(14°F)		-21°C
(-6°F)
Minimum-28°C
(-18°F)		-31°C
(-23°F)		-26°C
(-14°F)		-7°C
(20°F)		-2°C
(29°F)		0°C
(32°F)		3°C
(38°F)		3°C
(37°F)		-1°C
(31°F)		-13°C
(8°F)		-15°C
(6°F)		-36°C
(-33°F)

Compare climate in Merritt with other places

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

Monthly average precipitation in Merritt, Canada

Merritt usually has the most precipitation in October, November and December, with an average of 13 rainy days and 93 mm (3.7 inches) of precipitation per month. The driest months in Merritt are June, July and August. On average, 27 mm (1.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Merritt. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)74 (2.9)71 (2.8)54 (2.1)50 (2.0)41 (1.6)40 (1.6)21 (0.8)19 (0.8)50 (2.0)76 (3.0)111 (4.4)92 (3.6)
Average precipitation days (≥ 1 mm)13131212910459121514

Monthly sunshine hours in Merritt, Canada

The sunniest months in Merritt are May, July and August, when the sun shines an average of 11 hours 37 minutes a day. Least sunny months in Merritt: January, November and December receive an average of 3 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Merritt. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours87148214254336334392352251176113100
Mean daily daylight hours8h 36m10h 6m11h 56m13h 49m15h 27m16h 17m15h 49m14h 21m12h 32m10h 39m8h 59m8h 7m

Solar UV radiation in Merritt, Canada

Merritt 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 Merritt UV Index data.

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