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Monthly climate in Winchester, Ontario, Canada

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Winchester features a humid continental climate (Dfb).Temperatures typically range between -7 °C (19 °F) and 22 °C (72 °F) through the year, but rarely can drop to -32 °C (-25 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 1182 mm (46.5 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually.Winchester enjoys an average of 2767 hours of sunshine throughout the year, and daylight varies from 8 hours 48 minutes to 15 hours 33 minutes per day.

Monthly average temperatures in Winchester, Ontario, Canada §

The warmest months in Winchester 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 -7 to -4 °C (19 - 26 °F) throughout the day. On average each year, Winchester experiences 59 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 Winchester, 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
(55°F)		 14°C
(57°F)		 22°C
(71°F)		 28°C
(83°F)		 35°C
(95°F)		 33°C
(92°F)		 35°C
(96°F)		 33°C
(92°F)		 32°C
(90°F)		 27°C
(80°F)		 22°C
(72°F)		 16°C
(61°F)
Mean maximum 7°C
(44°F)		 9°C
(48°F)		 14°C
(58°F)		 23°C
(73°F)		 30°C
(87°F)		 31°C
(87°F)		 32°C
(91°F)		 31°C
(87°F)		 29°C
(84°F)		 24°C
(76°F)		 16°C
(61°F)		 11°C
(52°F)
Average high -3°C
(26°F)		 -1°C
(30°F)		 3°C
(38°F)		 11°C
(53°F)		 19°C
(67°F)		 24°C
(76°F)		 27°C
(81°F)		 26°C
(79°F)		 22°C
(72°F)		 15°C
(59°F)		 5°C
(42°F)		 -1°C
(31°F)
Daily mean -7°C
(19°F)		 -6°C
(21°F)		 -1°C
(30°F)		 6°C
(44°F)		 14°C
(57°F)		 19°C
(66°F)		 22°C
(72°F)		 21°C
(69°F)		 16°C
(62°F)		 10°C
(50°F)		 2°C
(35°F)		 -4°C
(26°F)
Average low -12°C
(11°F)		 -11°C
(13°F)		 -6°C
(22°F)		 2°C
(35°F)		 8°C
(47°F)		 13°C
(55°F)		 16°C
(62°F)		 16°C
(61°F)		 11°C
(53°F)		 6°C
(43°F)		 -2°C
(28°F)		 -7°C
(19°F)
Mean minimum -26°C
(-14°F)		 -23°C
(-10°F)		 -19°C
(-2°F)		 -5°C
(23°F)		 -0°C
(32°F)		 7°C
(44°F)		 10°C
(51°F)		 9°C
(48°F)		 4°C
(40°F)		 -2°C
(28°F)		 -13°C
(9°F)		 -20°C
(-3°F)
Minimum -32°C
(-25°F)		 -29°C
(-21°F)		 -21°C
(-5°F)		 -9°C
(16°F)		 -2°C
(29°F)		 2°C
(36°F)		 8°C
(47°F)		 7°C
(46°F)		 -0°C
(32°F)		 -5°C
(24°F)		 -18°C
(-0°F)		 -29°C
(-20°F)

Compare climate in Winchester with other places

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

Monthly average precipitation in Winchester, Ontario, Canada §

Winchester usually has the most precipitation in April, July and October, with an average of 13 rainy days and 124 mm (4.9 inches) of precipitation per month.The driest months in Winchester are January, February and September. On average, 77 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Winchester, 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 (3.1) 81 (3.2) 87 (3.4) 117 (4.6) 110 (4.3) 97 (3.8) 119 (4.7) 99 (3.9) 70 (2.8) 137 (5.4) 101 (4.0) 84 (3.3)
Average precipitation days (≥ 1 mm) 10 13 12 13 13 13 14 14 9 13 13 13

Monthly sunshine hours in Winchester, Ontario, Canada §

The sunniest months in Winchester are June, July and August, when the sun shines an average of 10 hours 48 minutes a day.Least sunny months in Winchester: January, November and December receive an average of 4 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Winchester, 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 114 152 234 227 283 320 350 324 278 197 150 132
Mean daily daylight hours 9h 11m 10h 25m 11h 57m 13h 32m 14h 52m 15h 33m 15h 11m 13h 59m 12h 28m 10h 54m 9h 31m 8h 48m

Solar UV radiation in Winchester, Ontario, Canada §

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

Average daily maximum UV levels by month for Winchester, 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 8 7 5 3 2