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Monthly climate in Watford, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Watford features a humid continental climate (Dfb). Temperatures typically range between -3 °C (27 °F) and 22 °C (72 °F) through the year, but rarely can drop to -21 °C (-5 °F) or can rise to as high as 32 °C (89 °F). The average annual precipitation amounts to about 1126 mm (44.3 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually. Watford enjoys an average of 2821 hours of sunshine throughout the year, and daylight varies from 9 hours 3 minutes to 15 hours 17 minutes per day.

Monthly average temperatures in Watford, Canada

The warmest months in Watford are June, July and August, with daily mean temperatures ranging from 18 to 22 °C (65 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 1 °C (27 - 33 °F) throughout the day. On average each year, Watford experiences 39 days above 25 °C (77.0 °F) and 100 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Watford. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(51°F)		14°C
(57°F)		16°C
(61°F)		21°C
(70°F)		27°C
(80°F)		29°C
(85°F)		32°C
(89°F)		30°C
(87°F)		30°C
(86°F)		26°C
(79°F)		20°C
(68°F)		14°C
(58°F)
Mean maximum8°C
(47°F)		10°C
(50°F)		15°C
(59°F)		18°C
(65°F)		25°C
(78°F)		28°C
(83°F)		30°C
(87°F)		29°C
(85°F)		28°C
(82°F)		24°C
(76°F)		15°C
(59°F)		12°C
(53°F)
Average high-0°C
(32°F)		1°C
(34°F)		5°C
(41°F)		9°C
(49°F)		16°C
(61°F)		22°C
(72°F)		25°C
(78°F)		25°C
(77°F)		22°C
(71°F)		15°C
(60°F)		7°C
(45°F)		3°C
(37°F)
Daily mean-3°C
(27°F)		-2°C
(28°F)		1°C
(35°F)		6°C
(43°F)		12°C
(54°F)		18°C
(65°F)		22°C
(72°F)		22°C
(71°F)		18°C
(65°F)		12°C
(54°F)		4°C
(40°F)		1°C
(33°F)
Average low-5°C
(23°F)		-5°C
(23°F)		-2°C
(29°F)		3°C
(37°F)		9°C
(48°F)		15°C
(59°F)		18°C
(65°F)		18°C
(65°F)		15°C
(59°F)		9°C
(49°F)		2°C
(36°F)		-2°C
(29°F)
Mean minimum-15°C
(5°F)		-14°C
(7°F)		-9°C
(17°F)		-3°C
(27°F)		2°C
(35°F)		10°C
(50°F)		14°C
(58°F)		13°C
(56°F)		9°C
(48°F)		3°C
(38°F)		-5°C
(23°F)		-9°C
(17°F)
Minimum-20°C
(-4°F)		-21°C
(-5°F)		-13°C
(9°F)		-5°C
(24°F)		-1°C
(31°F)		7°C
(45°F)		13°C
(55°F)		11°C
(52°F)		5°C
(41°F)		2°C
(35°F)		-10°C
(15°F)		-16°C
(4°F)

Compare climate in Watford with other places

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

Monthly average precipitation in Watford, Canada

Watford usually has the most precipitation in April, May and October, with an average of 14 rainy days and 117 mm (4.6 inches) of precipitation per month. The driest months in Watford are January, March and December. On average, 78 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Watford. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)81 (3.2)82 (3.2)80 (3.1)109 (4.3)104 (4.1)87 (3.4)84 (3.3)99 (3.9)87 (3.4)138 (5.4)99 (3.9)74 (2.9)
Average precipitation days (≥ 1 mm)131212141311111212171314

Monthly sunshine hours in Watford, Canada

The sunniest months in Watford are June, July and August, when the sun shines an average of 11 hours 8 minutes a day. Least sunny months in Watford: January, February and December receive an average of 4 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Watford. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours99150236243293339352333289211151119
Mean daily daylight hours9h 24m10h 32m11h 57m13h 25m14h 40m15h 17m14h 56m13h 50m12h 26m10h 58m9h 42m9h 3m

Solar UV radiation in Watford, Canada

Watford experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, 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 Watford UV Index data.

Average daily maximum UV levels by month for Watford. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2458910997532