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Monthly climate in Aylmer, Ontario, Canada

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Aylmer features a humid continental climate (Dfb).Temperatures typically range between -3 °C (27 °F) and 22 °C (72 °F) through the year, but rarely can drop to -22 °C (-7 °F) or can rise to as high as 31 °C (87 °F).The average annual precipitation amounts to about 1101 mm (43.3 inches) and receives 143 rainy days on the 1 mm (0.04 inches) threshold annually.Aylmer enjoys an average of 2885 hours of sunshine throughout the year, and daylight varies from 9 hours 4 minutes to 15 hours 15 minutes per day.

Monthly average temperatures in Aylmer, Ontario, Canada §

The warmest months in Aylmer 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 -3 to 1 °C (27 - 33 °F) throughout the day. On average each year, Aylmer experiences 37 days above 25 °C (77.0 °F) and 102 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Aylmer, 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)		 13°C
(56°F)		 14°C
(57°F)		 20°C
(68°F)		 26°C
(79°F)		 28°C
(84°F)		 31°C
(87°F)		 28°C
(84°F)		 29°C
(85°F)		 26°C
(79°F)		 19°C
(66°F)		 13°C
(56°F)
Mean maximum 8°C
(47°F)		 8°C
(48°F)		 12°C
(54°F)		 17°C
(64°F)		 24°C
(76°F)		 27°C
(81°F)		 29°C
(85°F)		 28°C
(82°F)		 27°C
(81°F)		 23°C
(74°F)		 15°C
(60°F)		 11°C
(52°F)
Average high -0°C
(32°F)		 0°C
(33°F)		 4°C
(40°F)		 9°C
(49°F)		 16°C
(61°F)		 22°C
(72°F)		 25°C
(78°F)		 25°C
(77°F)		 22°C
(71°F)		 15°C
(60°F)		 7°C
(45°F)		 3°C
(37°F)
Daily mean -3°C
(27°F)		 -3°C
(27°F)		 1°C
(34°F)		 6°C
(43°F)		 13°C
(55°F)		 19°C
(66°F)		 22°C
(72°F)		 22°C
(71°F)		 18°C
(65°F)		 12°C
(55°F)		 5°C
(41°F)		 1°C
(33°F)
Average low -5°C
(22°F)		 -6°C
(22°F)		 -2°C
(28°F)		 3°C
(37°F)		 9°C
(49°F)		 15°C
(60°F)		 19°C
(66°F)		 18°C
(65°F)		 15°C
(59°F)		 9°C
(49°F)		 2°C
(36°F)		 -2°C
(29°F)
Mean minimum -16°C
(3°F)		 -16°C
(4°F)		 -10°C
(14°F)		 -3°C
(26°F)		 1°C
(35°F)		 10°C
(50°F)		 14°C
(58°F)		 13°C
(55°F)		 9°C
(48°F)		 2°C
(36°F)		 -6°C
(22°F)		 -8°C
(17°F)
Minimum -21°C
(-6°F)		 -22°C
(-7°F)		 -16°C
(3°F)		 -7°C
(20°F)		 -1°C
(30°F)		 6°C
(44°F)		 13°C
(56°F)		 11°C
(52°F)		 5°C
(42°F)		 1°C
(34°F)		 -9°C
(17°F)		 -16°C
(3°F)

Compare climate in Aylmer with other places

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

Monthly average precipitation in Aylmer, Ontario, Canada §

Aylmer usually has the most precipitation in April, May and October, with an average of 14 rainy days and 110 mm (4.3 inches) of precipitation per month.The driest months in Aylmer are January, February and September. On average, 79 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Aylmer, 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) 77 (3.0) 81 (3.2) 83 (3.3) 109 (4.3) 101 (4.0) 91 (3.6) 91 (3.6) 90 (3.6) 79 (3.1) 121 (4.8) 94 (3.7) 82 (3.2)
Average precipitation days (≥ 1 mm) 10 12 11 14 13 11 12 10 10 15 12 13

Monthly sunshine hours in Aylmer, Ontario, Canada §

The sunniest months in Aylmer are June, July and August, when the sun shines an average of 11 hours 21 minutes a day.Least sunny months in Aylmer: January, February and December receive an average of 4 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Aylmer, 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 101 152 239 254 298 344 357 343 297 221 153 121
Mean daily daylight hours 9h 25m 10h 32m 11h 57m 13h 25m 14h 39m 15h 15m 14h 55m 13h 49m 12h 26m 10h 59m 9h 43m 9h 4m

Solar UV radiation in Aylmer, Ontario, Canada §

Aylmer 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 Aylmer UV Index data.

Average daily maximum UV levels by month for Aylmer, 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) 3 4 5 8 9 10 10 9 8 6 4 2