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Monthly climate in Huntsville, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Huntsville features a humid continental climate (Dfb). Temperatures typically range between -9 °C (17 °F) and 20 °C (68 °F) through the year, but rarely can drop to -30 °C (-23 °F) or can rise to as high as 30 °C (87 °F). The average annual precipitation amounts to about 1234 mm (48.6 inches) and receives 163 rainy days on the 1 mm (0.04 inches) threshold annually. Huntsville enjoys an average of 2686 hours of sunshine throughout the year, and daylight varies from 8 hours 46 minutes to 15 hours 35 minutes per day.

Monthly average temperatures in Huntsville, Canada

The warmest months in Huntsville are June, July and August, with daily mean temperatures ranging from 16 to 20 °C (60 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -9 to -5 °C (17 - 24 °F) throughout the day. On average each year, Huntsville experiences 23 days above 25 °C (77.0 °F) and 146 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Huntsville. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		9°C
(49°F)		14°C
(57°F)		24°C
(75°F)		28°C
(83°F)		28°C
(83°F)		30°C
(87°F)		30°C
(86°F)		28°C
(84°F)		25°C
(76°F)		19°C
(67°F)		14°C
(58°F)
Mean maximum3°C
(38°F)		6°C
(43°F)		9°C
(49°F)		18°C
(65°F)		25°C
(78°F)		26°C
(80°F)		28°C
(83°F)		28°C
(82°F)		26°C
(79°F)		22°C
(71°F)		13°C
(55°F)		8°C
(46°F)
Average high-5°C
(24°F)		-3°C
(26°F)		1°C
(34°F)		8°C
(46°F)		15°C
(60°F)		20°C
(69°F)		24°C
(75°F)		23°C
(74°F)		19°C
(67°F)		12°C
(54°F)		4°C
(39°F)		-2°C
(29°F)
Daily mean-9°C
(17°F)		-8°C
(19°F)		-4°C
(26°F)		3°C
(38°F)		10°C
(51°F)		16°C
(60°F)		20°C
(68°F)		19°C
(66°F)		15°C
(59°F)		9°C
(48°F)		1°C
(34°F)		-5°C
(24°F)
Average low-13°C
(10°F)		-12°C
(11°F)		-8°C
(18°F)		-0°C
(31°F)		6°C
(42°F)		11°C
(52°F)		15°C
(60°F)		15°C
(59°F)		11°C
(52°F)		5°C
(42°F)		-2°C
(28°F)		-8°C
(18°F)
Mean minimum-25°C
(-14°F)		-24°C
(-10°F)		-20°C
(-4°F)		-8°C
(18°F)		-2°C
(30°F)		6°C
(43°F)		11°C
(52°F)		10°C
(50°F)		5°C
(41°F)		-2°C
(29°F)		-13°C
(9°F)		-20°C
(-5°F)
Minimum-30°C
(-23°F)		-28°C
(-18°F)		-23°C
(-9°F)		-15°C
(5°F)		-4°C
(25°F)		3°C
(37°F)		10°C
(50°F)		8°C
(47°F)		3°C
(38°F)		-5°C
(23°F)		-17°C
(2°F)		-30°C
(-22°F)

Compare climate in Huntsville with other places

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

Monthly average precipitation in Huntsville, Canada

Huntsville usually has the most precipitation in June, August and September, with an average of 13 rainy days and 129 mm (5.1 inches) of precipitation per month. The driest months in Huntsville are January, February and March. On average, 75 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Huntsville. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)71 (2.8)84 (3.3)70 (2.8)110 (4.3)100 (4.0)120 (4.7)104 (4.1)143 (5.6)123 (4.8)110 (4.3)108 (4.3)92 (3.6)
Average precipitation days (≥ 1 mm)111510151211121513161716

Monthly sunshine hours in Huntsville, Canada

The sunniest months in Huntsville are June, July and August, when the sun shines an average of 10 hours 35 minutes a day. Least sunny months in Huntsville: January, November and December receive an average of 3 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Huntsville. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours99152229224281312346316277190140116
Mean daily daylight hours9h 10m10h 24m11h 57m13h 32m14h 54m15h 35m15h 12m13h 59m12h 28m10h 53m9h 29m8h 46m

Solar UV radiation in Huntsville, Canada

Huntsville 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 Huntsville UV Index data.

Average daily maximum UV levels by month for Huntsville. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)245899997532