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Monthly climate in Caledon, Ontario, Canada

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Caledon features a humid continental climate (Dfb).Temperatures typically range between -5 °C (22 °F) and 21 °C (71 °F) through the year, but rarely can drop to -27 °C (-16 °F) or can rise to as high as 34 °C (93 °F).The average annual precipitation amounts to about 1000 mm (39.4 inches) and receives 137 rainy days on the 1 mm (0.04 inches) threshold annually.Caledon enjoys an average of 2801 hours of sunshine throughout the year, and daylight varies from 8 hours 56 minutes to 15 hours 23 minutes per day.

Monthly average temperatures in Caledon, Ontario, Canada §

The warmest months in Caledon are June, July and August, with daily mean temperatures ranging from 19 to 21 °C (66 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -2 °C (22 - 29 °F) throughout the day. On average each year, Caledon experiences 51 days above 25 °C (77.0 °F) and 138 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Caledon, Ontario, Canada.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 12°C
(53°F)		 16°C
(60°F)		 20°C
(69°F)		 25°C
(77°F)		 32°C
(89°F)		 34°C
(93°F)		 34°C
(93°F)		 32°C
(90°F)		 32°C
(90°F)		 28°C
(83°F)		 23°C
(73°F)		 15°C
(60°F)
Mean maximum 8°C
(46°F)		 11°C
(52°F)		 16°C
(62°F)		 20°C
(69°F)		 30°C
(86°F)		 32°C
(89°F)		 32°C
(90°F)		 31°C
(87°F)		 29°C
(85°F)		 26°C
(78°F)		 16°C
(61°F)		 11°C
(52°F)
Average high -2°C
(29°F)		 -1°C
(31°F)		 4°C
(40°F)		 10°C
(51°F)		 18°C
(65°F)		 24°C
(75°F)		 26°C
(80°F)		 25°C
(78°F)		 22°C
(71°F)		 14°C
(58°F)		 6°C
(42°F)		 1°C
(34°F)
Daily mean -5°C
(22°F)		 -5°C
(24°F)		 -0°C
(32°F)		 5°C
(42°F)		 13°C
(55°F)		 19°C
(66°F)		 21°C
(71°F)		 20°C
(69°F)		 16°C
(62°F)		 10°C
(50°F)		 2°C
(36°F)		 -2°C
(29°F)
Average low -9°C
(16°F)		 -9°C
(16°F)		 -5°C
(24°F)		 1°C
(34°F)		 8°C
(46°F)		 13°C
(56°F)		 16°C
(62°F)		 15°C
(60°F)		 11°C
(53°F)		 6°C
(43°F)		 -2°C
(30°F)		 -5°C
(23°F)
Mean minimum -21°C
(-5°F)		 -20°C
(-4°F)		 -16°C
(4°F)		 -5°C
(24°F)		 -0°C
(32°F)		 8°C
(46°F)		 11°C
(52°F)		 9°C
(49°F)		 4°C
(40°F)		 -2°C
(29°F)		 -13°C
(9°F)		 -16°C
(3°F)
Minimum -27°C
(-16°F)		 -25°C
(-12°F)		 -20°C
(-4°F)		 -7°C
(20°F)		 -3°C
(26°F)		 3°C
(38°F)		 10°C
(49°F)		 7°C
(44°F)		 0°C
(33°F)		 -4°C
(26°F)		 -22°C
(-6°F)		 -27°C
(-16°F)

Compare climate in Caledon with other places

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

Monthly average precipitation in Caledon, Ontario, Canada §

Caledon usually has the most precipitation in April, June and October, with an average of 13 rainy days and 103 mm (4.1 inches) of precipitation per month.The driest months in Caledon are January, March and December. On average, 65 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Caledon, Ontario, Canada.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 66 (2.6) 70 (2.8) 59 (2.3) 105 (4.1) 97 (3.8) 103 (4.0) 84 (3.3) 97 (3.8) 71 (2.8) 101 (4.0) 75 (3.0) 70 (2.7)
Average precipitation days (≥ 1 mm) 8 11 9 14 13 12 12 12 10 13 11 12

Monthly sunshine hours in Caledon, Ontario, Canada §

The sunniest months in Caledon are June, July and August, when the sun shines an average of 11 hours 5 minutes a day.Least sunny months in Caledon: January, November and December receive an average of 4 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Caledon, Ontario, Canada.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 108 154 228 235 290 334 347 337 299 200 149 114
Mean daily daylight hours 9h 19m 10h 29m 11h 57m 13h 28m 14h 45m 15h 23m 15h 2m 13h 54m 12h 27m 10h 56m 9h 37m 8h 56m

Solar UV radiation in Caledon, Ontario, Canada §

Caledon 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 / 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 Caledon UV Index data.

Average daily maximum UV levels by month for Caledon, Ontario, Canada.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 4 5 8 9 9 9 9 7 5 3 2