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Monthly climate in Corner Brook, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Corner Brook features a humid continental climate (Dfb). Temperatures typically range between -7 °C (19 °F) and 17 °C (63 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 27 °C (80 °F). The average annual precipitation amounts to about 1422 mm (56.0 inches) and receives 204 rainy days on the 1 mm (0.04 inches) threshold annually. Corner Brook enjoys an average of 2310 hours of sunshine throughout the year, and daylight varies from 8 hours 17 minutes to 16 hours 6 minutes per day.

Monthly average temperatures in Corner Brook, Canada

The warmest months in Corner Brook are July, August and September, with daily mean temperatures ranging from 13 to 17 °C (55 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -7 to -4 °C (19 - 25 °F) throughout the day. On average each year, Corner Brook experiences 1 days above 25 °C (77.0 °F) and 153 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Corner Brook. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum9°C
(49°F)		8°C
(46°F)		10°C
(51°F)		15°C
(59°F)		18°C
(65°F)		24°C
(76°F)		25°C
(77°F)		27°C
(80°F)		23°C
(74°F)		23°C
(74°F)		17°C
(63°F)		12°C
(55°F)
Mean maximum5°C
(42°F)		5°C
(41°F)		7°C
(44°F)		12°C
(53°F)		17°C
(64°F)		20°C
(69°F)		24°C
(76°F)		25°C
(77°F)		22°C
(72°F)		18°C
(65°F)		15°C
(59°F)		10°C
(50°F)
Average high-3°C
(27°F)		-4°C
(26°F)		-1°C
(31°F)		5°C
(40°F)		9°C
(49°F)		15°C
(59°F)		19°C
(66°F)		21°C
(70°F)		16°C
(61°F)		10°C
(51°F)		5°C
(42°F)		0°C
(33°F)
Daily mean-6°C
(22°F)		-7°C
(19°F)		-4°C
(25°F)		1°C
(34°F)		6°C
(42°F)		11°C
(52°F)		15°C
(60°F)		17°C
(63°F)		13°C
(55°F)		7°C
(45°F)		3°C
(37°F)		-2°C
(29°F)
Average low-9°C
(16°F)		-10°C
(14°F)		-7°C
(19°F)		-2°C
(28°F)		2°C
(36°F)		7°C
(45°F)		11°C
(53°F)		13°C
(56°F)		9°C
(48°F)		4°C
(40°F)		0°C
(33°F)		-4°C
(25°F)
Mean minimum-16°C
(3°F)		-17°C
(1°F)		-15°C
(5°F)		-10°C
(14°F)		-3°C
(28°F)		3°C
(37°F)		6°C
(44°F)		8°C
(48°F)		3°C
(38°F)		-0°C
(31°F)		-5°C
(22°F)		-10°C
(14°F)
Minimum-19°C
(-2°F)		-21°C
(-6°F)		-16°C
(3°F)		-14°C
(7°F)		-4°C
(24°F)		-0°C
(32°F)		5°C
(41°F)		7°C
(45°F)		1°C
(34°F)		-2°C
(29°F)		-10°C
(15°F)		-13°C
(8°F)

Compare climate in Corner Brook with other places

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

Monthly average precipitation in Corner Brook, Canada

Corner Brook usually has the most precipitation in October, November and December, with an average of 19 rainy days and 150 mm (5.9 inches) of precipitation per month. The driest months in Corner Brook are January, May and July. On average, 95 mm (3.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Corner Brook. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)101 (4.0)124 (4.9)109 (4.3)103 (4.0)98 (3.9)105 (4.2)86 (3.4)125 (4.9)123 (4.8)130 (5.1)163 (6.4)156 (6.1)
Average precipitation days (≥ 1 mm)172118151515121616172121

Monthly sunshine hours in Corner Brook, Canada

The sunniest months in Corner Brook are June, July and August, when the sun shines an average of 10 hours 4 minutes a day. Least sunny months in Corner Brook: January, February and December receive an average of 2 hours 8 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Corner Brook. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours54871782302702913133212211919652
Mean daily daylight hours8h 45m10h 10m11h 56m13h 44m15h 18m16h 6m15h 40m14h 16m12h 31m10h 43m9h 8m8h 17m

Solar UV radiation in Corner Brook, Canada

Corner Brook 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 exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Corner Brook UV Index data.

Average daily maximum UV levels by month for Corner Brook. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235789886421