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Monthly climate in Gananoque, Ontario, Canada

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Gananoque features a humid continental climate (Dfb).Temperatures typically range between -5 °C (23 °F) and 22 °C (72 °F) through the year, but rarely can drop to -25 °C (-12 °F) or can rise to as high as 31 °C (88 °F).The average annual precipitation amounts to about 1208 mm (47.6 inches) and receives 145 rainy days on the 1 mm (0.04 inches) threshold annually.Gananoque enjoys an average of 2787 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 Gananoque, Ontario, Canada §

The warmest months in Gananoque are June, July and August, with daily mean temperatures ranging from 18 to 22 °C (64 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -1 °C (23 - 30 °F) throughout the day. On average each year, Gananoque experiences 33 days above 25 °C (77.0 °F) and 108 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Gananoque, 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 10°C
(50°F)		 11°C
(52°F)		 18°C
(64°F)		 23°C
(73°F)		 28°C
(83°F)		 28°C
(82°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(84°F)		 22°C
(73°F)		 18°C
(65°F)		 13°C
(57°F)
Mean maximum 7°C
(46°F)		 7°C
(46°F)		 12°C
(54°F)		 18°C
(65°F)		 25°C
(78°F)		 26°C
(79°F)		 29°C
(84°F)		 29°C
(84°F)		 26°C
(79°F)		 22°C
(72°F)		 15°C
(59°F)		 10°C
(50°F)
Average high -2°C
(29°F)		 -1°C
(31°F)		 3°C
(38°F)		 9°C
(49°F)		 16°C
(61°F)		 21°C
(70°F)		 25°C
(78°F)		 25°C
(77°F)		 21°C
(70°F)		 15°C
(58°F)		 7°C
(44°F)		 1°C
(34°F)
Daily mean -5°C
(23°F)		 -4°C
(25°F)		 -0°C
(31°F)		 6°C
(43°F)		 12°C
(54°F)		 18°C
(64°F)		 22°C
(72°F)		 22°C
(71°F)		 18°C
(64°F)		 11°C
(53°F)		 4°C
(39°F)		 -1°C
(30°F)
Average low -8°C
(17°F)		 -8°C
(18°F)		 -4°C
(25°F)		 3°C
(37°F)		 9°C
(48°F)		 14°C
(58°F)		 19°C
(66°F)		 18°C
(66°F)		 14°C
(58°F)		 9°C
(48°F)		 1°C
(34°F)		 -4°C
(25°F)
Mean minimum -20°C
(-4°F)		 -18°C
(-0°F)		 -15°C
(5°F)		 -3°C
(27°F)		 2°C
(36°F)		 9°C
(49°F)		 15°C
(59°F)		 13°C
(56°F)		 8°C
(47°F)		 2°C
(36°F)		 -8°C
(17°F)		 -15°C
(6°F)
Minimum -25°C
(-12°F)		 -22°C
(-8°F)		 -18°C
(1°F)		 -6°C
(21°F)		 -1°C
(31°F)		 6°C
(43°F)		 14°C
(58°F)		 12°C
(55°F)		 4°C
(40°F)		 -1°C
(31°F)		 -12°C
(10°F)		 -23°C
(-9°F)

Compare climate in Gananoque with other places

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

Monthly average precipitation in Gananoque, Ontario, Canada §

Gananoque usually has the most precipitation in April, July and October, with an average of 13 rainy days and 135 mm (5.3 inches) of precipitation per month.The driest months in Gananoque are January, February and September. On average, 76 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Gananoque, 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) 79 (3.1) 78 (3.1) 79 (3.1) 126 (5.0) 98 (3.9) 91 (3.6) 126 (5.0) 96 (3.8) 70 (2.8) 154 (6.0) 114 (4.5) 97 (3.8)
Average precipitation days (≥ 1 mm) 11 13 10 13 12 11 13 13 9 14 14 12

Monthly sunshine hours in Gananoque, Ontario, Canada §

The sunniest months in Gananoque are June, July and August, when the sun shines an average of 10 hours 50 minutes a day.Least sunny months in Gananoque: January, February and December receive an average of 4 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Gananoque, 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 118 153 230 230 282 323 342 330 288 202 157 127
Mean daily daylight hours 9h 16m 10h 27m 11h 57m 13h 29m 14h 48m 15h 27m 15h 5m 13h 55m 12h 27m 10h 55m 9h 35m 8h 53m

Solar UV radiation in Gananoque, Ontario, Canada §

Gananoque 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 Gananoque UV Index data.

Average daily maximum UV levels by month for Gananoque, 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