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Monthly climate in Peterborough, Ontario, Canada

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Peterborough features a humid continental climate (Dfb).Temperatures typically range between -6 °C (21 °F) and 22 °C (72 °F) through the year, but rarely can drop to -30 °C (-21 °F) or can rise to as high as 33 °C (92 °F).The average annual precipitation amounts to about 1088 mm (42.8 inches) and receives 140 rainy days on the 1 mm (0.04 inches) threshold annually.Peterborough enjoys an average of 2758 hours of sunshine throughout the year, and daylight varies from 8 hours 53 minutes to 15 hours 27 minutes per day.

Monthly average temperatures in Peterborough, Ontario, Canada §

The warmest months in Peterborough are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (66 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -3 °C (21 - 27 °F) throughout the day. On average each year, Peterborough experiences 53 days above 25 °C (77.0 °F) and 132 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Peterborough, 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 11°C
(51°F)		 15°C
(59°F)		 18°C
(65°F)		 25°C
(77°F)		 31°C
(88°F)		 31°C
(88°F)		 33°C
(92°F)		 32°C
(90°F)		 32°C
(90°F)		 27°C
(81°F)		 20°C
(69°F)		 15°C
(60°F)
Mean maximum 7°C
(45°F)		 9°C
(49°F)		 14°C
(58°F)		 19°C
(67°F)		 28°C
(83°F)		 30°C
(87°F)		 31°C
(89°F)		 30°C
(86°F)		 28°C
(83°F)		 24°C
(76°F)		 15°C
(59°F)		 10°C
(50°F)
Average high -2°C
(28°F)		 -1°C
(31°F)		 4°C
(39°F)		 10°C
(51°F)		 18°C
(65°F)		 23°C
(74°F)		 27°C
(80°F)		 26°C
(78°F)		 22°C
(71°F)		 14°C
(58°F)		 6°C
(43°F)		 0°C
(33°F)
Daily mean -6°C
(21°F)		 -5°C
(23°F)		 -1°C
(31°F)		 6°C
(42°F)		 13°C
(56°F)		 19°C
(66°F)		 22°C
(72°F)		 21°C
(69°F)		 17°C
(62°F)		 10°C
(50°F)		 2°C
(36°F)		 -3°C
(27°F)
Average low -10°C
(13°F)		 -10°C
(14°F)		 -5°C
(23°F)		 2°C
(35°F)		 8°C
(47°F)		 13°C
(56°F)		 17°C
(63°F)		 16°C
(61°F)		 12°C
(53°F)		 6°C
(43°F)		 -2°C
(29°F)		 -6°C
(21°F)
Mean minimum -25°C
(-13°F)		 -22°C
(-7°F)		 -18°C
(-1°F)		 -6°C
(22°F)		 -0°C
(32°F)		 8°C
(47°F)		 12°C
(54°F)		 10°C
(51°F)		 5°C
(41°F)		 -2°C
(29°F)		 -13°C
(8°F)		 -18°C
(-0°F)
Minimum -30°C
(-21°F)		 -25°C
(-13°F)		 -24°C
(-10°F)		 -9°C
(16°F)		 -3°C
(26°F)		 4°C
(40°F)		 10°C
(51°F)		 8°C
(46°F)		 1°C
(34°F)		 -3°C
(27°F)		 -18°C
(-1°F)		 -28°C
(-19°F)

Compare climate in Peterborough with other places

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

Monthly average precipitation in Peterborough, Ontario, Canada §

Peterborough usually has the most precipitation in April, August and October, with an average of 13 rainy days and 115 mm (4.5 inches) of precipitation per month.The driest months in Peterborough are January, February and March. On average, 68 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Peterborough, 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) 67 (2.7) 72 (2.8) 65 (2.6) 116 (4.6) 105 (4.1) 99 (3.9) 93 (3.7) 118 (4.6) 82 (3.2) 110 (4.4) 85 (3.3) 74 (2.9)
Average precipitation days (≥ 1 mm) 10 12 10 13 12 11 14 13 9 13 11 12

Monthly sunshine hours in Peterborough, Ontario, Canada §

The sunniest months in Peterborough are June, July and August, when the sun shines an average of 10 hours 47 minutes a day.Least sunny months in Peterborough: January, November and December receive an average of 4 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Peterborough, 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 118 153 230 223 283 318 341 332 292 194 149 119
Mean daily daylight hours 9h 16m 10h 27m 11h 57m 13h 29m 14h 47m 15h 27m 15h 5m 13h 55m 12h 27m 10h 55m 9h 35m 8h 53m

Solar UV radiation in Peterborough, Ontario, Canada §

Peterborough 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 Peterborough UV Index data.

Average daily maximum UV levels by month for Peterborough, 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 10 9 9 7 5 3 2