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Monthly climate in Stratford, Ontario, Canada

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Stratford features a humid continental climate (Dfb).Temperatures typically range between -5 °C (24 °F) and 21 °C (71 °F) through the year, but rarely can drop to -26 °C (-14 °F) or can rise to as high as 33 °C (92 °F).The average annual precipitation amounts to about 1130 mm (44.5 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually.Stratford enjoys an average of 2780 hours of sunshine throughout the year, and daylight varies from 9 hours 0 minutes to 15 hours 20 minutes per day.

Monthly average temperatures in Stratford, Ontario, Canada §

The warmest months in Stratford 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 -1 °C (24 - 30 °F) throughout the day. On average each year, Stratford experiences 49 days above 25 °C (77.0 °F) and 134 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Stratford, 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
(53°F)		 16°C
(61°F)		 20°C
(68°F)		 25°C
(77°F)		 31°C
(88°F)		 32°C
(90°F)		 33°C
(92°F)		 31°C
(88°F)		 31°C
(88°F)		 27°C
(82°F)		 22°C
(71°F)		 15°C
(60°F)
Mean maximum 9°C
(48°F)		 11°C
(52°F)		 17°C
(63°F)		 22°C
(72°F)		 29°C
(84°F)		 30°C
(87°F)		 31°C
(88°F)		 29°C
(85°F)		 29°C
(84°F)		 25°C
(77°F)		 16°C
(61°F)		 12°C
(53°F)
Average high -1°C
(30°F)		 -0°C
(32°F)		 5°C
(41°F)		 11°C
(51°F)		 18°C
(65°F)		 24°C
(75°F)		 26°C
(79°F)		 25°C
(77°F)		 22°C
(71°F)		 15°C
(59°F)		 6°C
(43°F)		 1°C
(35°F)
Daily mean -5°C
(24°F)		 -4°C
(25°F)		 0°C
(33°F)		 6°C
(43°F)		 13°C
(56°F)		 19°C
(66°F)		 21°C
(71°F)		 20°C
(69°F)		 17°C
(62°F)		 10°C
(51°F)		 3°C
(37°F)		 -1°C
(30°F)
Average low -8°C
(17°F)		 -8°C
(17°F)		 -4°C
(25°F)		 1°C
(35°F)		 8°C
(46°F)		 13°C
(56°F)		 16°C
(61°F)		 15°C
(60°F)		 12°C
(53°F)		 6°C
(43°F)		 -1°C
(30°F)		 -4°C
(25°F)
Mean minimum -20°C
(-5°F)		 -20°C
(-3°F)		 -15°C
(5°F)		 -6°C
(22°F)		 -1°C
(30°F)		 8°C
(47°F)		 10°C
(51°F)		 9°C
(48°F)		 3°C
(38°F)		 -2°C
(29°F)		 -11°C
(13°F)		 -14°C
(7°F)
Minimum -26°C
(-14°F)		 -24°C
(-11°F)		 -23°C
(-8°F)		 -9°C
(17°F)		 -5°C
(24°F)		 4°C
(39°F)		 9°C
(49°F)		 5°C
(41°F)		 -1°C
(31°F)		 -3°C
(27°F)		 -14°C
(6°F)		 -24°C
(-11°F)

Compare climate in Stratford with other places

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

Monthly average precipitation in Stratford, Ontario, Canada §

Stratford usually has the most precipitation in April, June and October, with an average of 13 rainy days and 114 mm (4.5 inches) of precipitation per month.The driest months in Stratford are January, March and December. On average, 77 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Stratford, 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) 80 (3.2) 82 (3.2) 75 (3.0) 107 (4.2) 102 (4.0) 113 (4.5) 90 (3.5) 101 (4.0) 89 (3.5) 122 (4.8) 92 (3.6) 76 (3.0)
Average precipitation days (≥ 1 mm) 11 13 12 15 13 11 13 13 11 15 14 14

Monthly sunshine hours in Stratford, Ontario, Canada §

The sunniest months in Stratford are June, July and August, when the sun shines an average of 11 hours 6 minutes a day.Least sunny months in Stratford: January, November and December receive an average of 3 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Stratford, 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 94 144 229 240 293 336 350 335 292 207 143 112
Mean daily daylight hours 9h 22m 10h 31m 11h 57m 13h 26m 14h 42m 15h 20m 14h 59m 13h 52m 12h 26m 10h 57m 9h 40m 9h 0m

Solar UV radiation in Stratford, Ontario, Canada §

Stratford experiences the highest level of ultraviolet (UV) radiation in June, July 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 Stratford UV Index data.

Average daily maximum UV levels by month for Stratford, 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 10 9 8 5 4 2