nomadseason

Monthly climate in Norfolk County, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Norfolk County features a humid continental climate (Dfb). Temperatures typically range between -3 °C (28 °F) and 22 °C (73 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 31 °C (89 °F). The average annual precipitation amounts to about 1104 mm (43.5 inches) and receives 142 rainy days on the 1 mm (0.04 inches) threshold annually. Norfolk County enjoys an average of 2863 hours of sunshine throughout the year, and daylight varies from 9 hours 3 minutes to 15 hours 16 minutes per day.

Monthly average temperatures in Norfolk County, Canada

The warmest months in Norfolk County are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (66 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 1 °C (28 - 34 °F) throughout the day. On average each year, Norfolk County experiences 38 days above 25 °C (77.0 °F) and 97 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Norfolk County. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(53°F)		14°C
(58°F)		15°C
(59°F)		20°C
(68°F)		26°C
(80°F)		29°C
(84°F)		31°C
(89°F)		29°C
(85°F)		29°C
(85°F)		26°C
(79°F)		19°C
(66°F)		14°C
(57°F)
Mean maximum9°C
(48°F)		9°C
(48°F)		12°C
(54°F)		18°C
(64°F)		24°C
(76°F)		27°C
(81°F)		29°C
(85°F)		28°C
(83°F)		27°C
(81°F)		24°C
(75°F)		15°C
(60°F)		11°C
(52°F)
Average high0°C
(32°F)		0°C
(33°F)		4°C
(40°F)		9°C
(49°F)		16°C
(61°F)		22°C
(72°F)		26°C
(78°F)		25°C
(77°F)		22°C
(72°F)		15°C
(60°F)		7°C
(45°F)		3°C
(37°F)
Daily mean-3°C
(28°F)		-3°C
(28°F)		1°C
(34°F)		6°C
(43°F)		13°C
(55°F)		19°C
(66°F)		22°C
(73°F)		22°C
(72°F)		19°C
(66°F)		13°C
(55°F)		5°C
(41°F)		1°C
(34°F)
Average low-5°C
(23°F)		-6°C
(22°F)		-2°C
(28°F)		3°C
(38°F)		9°C
(49°F)		16°C
(60°F)		19°C
(67°F)		19°C
(66°F)		15°C
(60°F)		10°C
(50°F)		2°C
(36°F)		-1°C
(30°F)
Mean minimum-16°C
(4°F)		-15°C
(5°F)		-10°C
(14°F)		-3°C
(27°F)		2°C
(36°F)		11°C
(51°F)		15°C
(60°F)		14°C
(57°F)		10°C
(50°F)		3°C
(37°F)		-5°C
(23°F)		-8°C
(17°F)
Minimum-21°C
(-5°F)		-21°C
(-6°F)		-16°C
(3°F)		-7°C
(20°F)		-1°C
(30°F)		7°C
(44°F)		14°C
(58°F)		13°C
(55°F)		6°C
(43°F)		1°C
(34°F)		-9°C
(16°F)		-18°C
(0°F)

Compare climate in Norfolk County with other places

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

Monthly average precipitation in Norfolk County, Canada

Norfolk County usually has the most precipitation in April, May and October, with an average of 14 rainy days and 110 mm (4.3 inches) of precipitation per month. The driest months in Norfolk County are January, February and September. On average, 80 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Norfolk County. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)78 (3.1)81 (3.2)83 (3.3)106 (4.2)105 (4.1)88 (3.5)94 (3.7)92 (3.6)80 (3.1)118 (4.6)92 (3.6)88 (3.5)
Average precipitation days (≥ 1 mm)101211141311121010151113

Monthly sunshine hours in Norfolk County, Canada

The sunniest months in Norfolk County are June, July and August, when the sun shines an average of 11 hours 14 minutes a day. Least sunny months in Norfolk County: January, February and December receive an average of 4 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Norfolk County. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours107152234250291341350341298216156121
Mean daily daylight hours9h 25m10h 32m11h 57m13h 25m14h 39m15h 16m14h 56m13h 50m12h 26m10h 59m9h 43m9h 3m

Solar UV radiation in Norfolk County, Canada

Norfolk County 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, 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 Norfolk County UV Index data.

Average daily maximum UV levels by month for Norfolk County. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3458910998642