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Monthly climate in Chertsey, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Chertsey features a humid continental climate (Dfb). Temperatures typically range between -10 °C (14 °F) and 20 °C (68 °F) through the year, but rarely can drop to -31 °C (-23 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 1266 mm (49.8 inches) and receives 146 rainy days on the 1 mm (0.04 inches) threshold annually. Chertsey enjoys an average of 2776 hours of sunshine throughout the year, and daylight varies from 8 hours 42 minutes to 15 hours 39 minutes per day.

Monthly average temperatures in Chertsey, Canada

The warmest months in Chertsey are June, July and August, with daily mean temperatures ranging from 17 to 20 °C (63 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -10 to -8 °C (14 - 18 °F) throughout the day. On average each year, Chertsey experiences 37 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 Chertsey. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(49°F)		8°C
(47°F)		15°C
(59°F)		22°C
(72°F)		34°C
(93°F)		32°C
(89°F)		33°C
(91°F)		30°C
(87°F)		31°C
(88°F)		24°C
(76°F)		21°C
(69°F)		12°C
(54°F)
Mean maximum4°C
(39°F)		6°C
(43°F)		10°C
(50°F)		18°C
(65°F)		29°C
(84°F)		29°C
(85°F)		30°C
(87°F)		29°C
(84°F)		27°C
(80°F)		22°C
(71°F)		14°C
(57°F)		8°C
(47°F)
Average high-6°C
(21°F)		-4°C
(24°F)		1°C
(33°F)		8°C
(47°F)		17°C
(64°F)		22°C
(72°F)		25°C
(78°F)		24°C
(75°F)		20°C
(67°F)		12°C
(54°F)		2°C
(37°F)		-4°C
(26°F)
Daily mean-10°C
(14°F)		-9°C
(16°F)		-4°C
(25°F)		4°C
(39°F)		12°C
(54°F)		17°C
(63°F)		20°C
(68°F)		19°C
(66°F)		14°C
(58°F)		8°C
(46°F)		-1°C
(30°F)		-8°C
(18°F)
Average low-15°C
(6°F)		-14°C
(8°F)		-8°C
(18°F)		-1°C
(31°F)		6°C
(43°F)		11°C
(53°F)		15°C
(59°F)		14°C
(57°F)		9°C
(49°F)		4°C
(39°F)		-5°C
(24°F)		-12°C
(11°F)
Mean minimum-26°C
(-15°F)		-25°C
(-13°F)		-21°C
(-6°F)		-9°C
(17°F)		-1°C
(30°F)		5°C
(42°F)		9°C
(49°F)		8°C
(46°F)		2°C
(36°F)		-4°C
(26°F)		-17°C
(2°F)		-26°C
(-15°F)
Minimum-31°C
(-23°F)		-27°C
(-17°F)		-24°C
(-12°F)		-14°C
(7°F)		-3°C
(26°F)		1°C
(33°F)		8°C
(47°F)		6°C
(43°F)		-1°C
(30°F)		-8°C
(18°F)		-21°C
(-6°F)		-30°C
(-21°F)

Compare climate in Chertsey with other places

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

Monthly average precipitation in Chertsey, Canada

Chertsey usually has the most precipitation in April, July and October, with an average of 13 rainy days and 123 mm (4.8 inches) of precipitation per month. The driest months in Chertsey are January, March and September. On average, 89 mm (3.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chertsey. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)85 (3.4)92 (3.6)91 (3.6)120 (4.7)107 (4.2)111 (4.4)124 (4.9)114 (4.5)89 (3.5)126 (5.0)111 (4.4)96 (3.8)
Average precipitation days (≥ 1 mm)10121213111313149131412

Monthly sunshine hours in Chertsey, Canada

The sunniest months in Chertsey are June, July and August, when the sun shines an average of 10 hours 45 minutes a day. Least sunny months in Chertsey: January, November and December receive an average of 4 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chertsey. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours116157239232285319350319272197143140
Mean daily daylight hours9h 6m10h 22m11h 57m13h 34m14h 57m15h 39m15h 16m14h 2m12h 28m10h 51m9h 26m8h 42m

Solar UV radiation in Chertsey, Canada

Chertsey experiences the highest level of ultraviolet (UV) radiation in April, May and June, 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 / 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 Chertsey UV Index data.

Average daily maximum UV levels by month for Chertsey. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)245899887532