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Monthly climate in Windsor, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Windsor features a humid continental climate (Dfa). Temperatures typically range between -2 °C (28 °F) and 24 °C (76 °F) through the year, but rarely can drop to -25 °C (-12 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 947 mm (37.3 inches) and receives 129 rainy days on the 1 mm (0.04 inches) threshold annually. Windsor enjoys an average of 2944 hours of sunshine throughout the year, and daylight varies from 9 hours 7 minutes to 15 hours 12 minutes per day.

Monthly average temperatures in Windsor, Canada

The warmest months in Windsor are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (71 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 1 °C (28 - 34 °F) throughout the day. On average each year, Windsor experiences 72 days above 25 °C (77.0 °F) and 95 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Windsor. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(55°F)		18°C
(64°F)		21°C
(71°F)		25°C
(78°F)		31°C
(87°F)		33°C
(92°F)		35°C
(95°F)		34°C
(93°F)		33°C
(91°F)		28°C
(84°F)		21°C
(71°F)		16°C
(61°F)
Mean maximum10°C
(50°F)		12°C
(55°F)		18°C
(64°F)		23°C
(73°F)		29°C
(85°F)		31°C
(89°F)		33°C
(92°F)		32°C
(90°F)		31°C
(88°F)		27°C
(80°F)		16°C
(61°F)		13°C
(56°F)
Average high1°C
(33°F)		2°C
(36°F)		7°C
(45°F)		12°C
(54°F)		19°C
(67°F)		25°C
(78°F)		28°C
(83°F)		27°C
(81°F)		24°C
(75°F)		17°C
(62°F)		8°C
(46°F)		4°C
(39°F)
Daily mean-2°C
(28°F)		-2°C
(29°F)		3°C
(37°F)		8°C
(47°F)		15°C
(60°F)		21°C
(71°F)		24°C
(76°F)		23°C
(74°F)		20°C
(67°F)		13°C
(56°F)		5°C
(41°F)		1°C
(34°F)
Average low-5°C
(23°F)		-5°C
(23°F)		-1°C
(31°F)		5°C
(40°F)		11°C
(52°F)		17°C
(63°F)		20°C
(69°F)		19°C
(67°F)		16°C
(60°F)		10°C
(49°F)		2°C
(35°F)		-2°C
(29°F)
Mean minimum-16°C
(4°F)		-16°C
(3°F)		-9°C
(15°F)		-2°C
(28°F)		3°C
(37°F)		12°C
(55°F)		16°C
(61°F)		14°C
(57°F)		9°C
(48°F)		2°C
(36°F)		-6°C
(21°F)		-10°C
(14°F)
Minimum-24°C
(-12°F)		-25°C
(-12°F)		-14°C
(7°F)		-4°C
(24°F)		-1°C
(30°F)		9°C
(49°F)		15°C
(58°F)		12°C
(54°F)		6°C
(43°F)		-1°C
(31°F)		-11°C
(12°F)		-21°C
(-6°F)

Compare climate in Windsor with other places

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

Monthly average precipitation in Windsor, Canada

Windsor usually has the most precipitation in April, May and October, with an average of 14 rainy days and 100 mm (3.9 inches) of precipitation per month. The driest months in Windsor are January, September and December. On average, 62 mm (2.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Windsor. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)67 (2.6)68 (2.7)72 (2.8)90 (3.5)111 (4.4)80 (3.2)86 (3.4)75 (2.9)58 (2.3)99 (3.9)82 (3.2)59 (2.3)
Average precipitation days (≥ 1 mm)811101415101110813811

Monthly sunshine hours in Windsor, Canada

The sunniest months in Windsor are June, July and August, when the sun shines an average of 11 hours 18 minutes a day. Least sunny months in Windsor: January, February and December receive an average of 4 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Windsor. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours110165247251294340361337290229173141
Mean daily daylight hours9h 28m10h 34m11h 58m13h 23m14h 36m15h 12m14h 52m13h 48m12h 25m11h 0m9h 45m9h 7m

Solar UV radiation in Windsor, Canada

Windsor experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Windsor UV Index data.

Average daily maximum UV levels by month for Windsor. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)24599101098542