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Monthly climate in Princeton, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Princeton features a subarctic climate (Dsc). Temperatures typically range between -6 °C (21 °F) and 14 °C (58 °F) through the year, but rarely can drop to -33 °C (-27 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 799 mm (31.5 inches) and receives 139 rainy days on the 1 mm (0.04 inches) threshold annually. Princeton enjoys an average of 2829 hours of sunshine throughout the year, and daylight varies from 8 hours 13 minutes to 16 hours 11 minutes per day.

Monthly average temperatures in Princeton, Canada

The warmest months in Princeton are June, July and August, with daily mean temperatures ranging from 11 to 14 °C (52 - 58 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -4 °C (21 - 25 °F) throughout the day. On average each year, Princeton experiences 16 days above 25 °C (77.0 °F) and 174 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Princeton. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(44°F)		6°C
(44°F)		16°C
(61°F)		22°C
(72°F)		24°C
(76°F)		36°C
(97°F)		35°C
(96°F)		31°C
(88°F)		28°C
(83°F)		22°C
(72°F)		12°C
(53°F)		9°C
(48°F)
Mean maximum5°C
(41°F)		5°C
(41°F)		11°C
(51°F)		16°C
(61°F)		22°C
(71°F)		26°C
(78°F)		30°C
(86°F)		29°C
(85°F)		26°C
(78°F)		16°C
(61°F)		9°C
(49°F)		6°C
(42°F)
Average high-1°C
(31°F)		-2°C
(29°F)		3°C
(39°F)		8°C
(46°F)		14°C
(57°F)		17°C
(62°F)		21°C
(70°F)		22°C
(71°F)		16°C
(61°F)		8°C
(46°F)		3°C
(38°F)		-1°C
(30°F)
Daily mean-4°C
(25°F)		-6°C
(21°F)		-1°C
(30°F)		3°C
(37°F)		8°C
(47°F)		11°C
(52°F)		14°C
(58°F)		14°C
(58°F)		10°C
(50°F)		3°C
(38°F)		-0°C
(32°F)		-4°C
(25°F)
Average low-7°C
(19°F)		-10°C
(14°F)		-5°C
(23°F)		-1°C
(30°F)		3°C
(37°F)		5°C
(41°F)		8°C
(46°F)		8°C
(47°F)		5°C
(41°F)		-1°C
(31°F)		-3°C
(27°F)		-7°C
(19°F)
Mean minimum-22°C
(-8°F)		-24°C
(-11°F)		-16°C
(3°F)		-7°C
(19°F)		-2°C
(29°F)		0°C
(33°F)		3°C
(38°F)		2°C
(37°F)		-1°C
(30°F)		-7°C
(19°F)		-10°C
(13°F)		-21°C
(-6°F)
Minimum-27°C
(-16°F)		-30°C
(-22°F)		-26°C
(-14°F)		-10°C
(15°F)		-2°C
(28°F)		-1°C
(30°F)		2°C
(35°F)		1°C
(34°F)		-3°C
(27°F)		-13°C
(8°F)		-15°C
(5°F)		-33°C
(-27°F)

Compare climate in Princeton with other places

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

Monthly average precipitation in Princeton, Canada

Princeton usually has the most precipitation in October, November and December, with an average of 14 rainy days and 109 mm (4.3 inches) of precipitation per month. The driest months in Princeton are June, July and August. On average, 27 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Princeton. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)83 (3.3)88 (3.5)64 (2.5)58 (2.3)47 (1.8)44 (1.7)20 (0.8)17 (0.7)52 (2.1)88 (3.5)124 (4.9)114 (4.5)
Average precipitation days (≥ 1 mm)141614141010449121616

Monthly sunshine hours in Princeton, Canada

The sunniest months in Princeton are June, July and August, when the sun shines an average of 11 hours 55 minutes a day. Least sunny months in Princeton: January, November and December receive an average of 3 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Princeton. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours92148220259335342397357260187120108
Mean daily daylight hours8h 41m10h 8m11h 56m13h 47m15h 22m16h 11m15h 44m14h 18m12h 31m10h 41m9h 3m8h 13m

Solar UV radiation in Princeton, Canada

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

Average daily maximum UV levels by month for Princeton. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235799997521