Last updated: May 6, 2024
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.
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).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 7°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 maximum | 3°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 temperature, precipitation, sunshine, UV index in Huntsville, Ontario, Canada with other places around the world.
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.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | 11 | 15 | 10 | 15 | 12 | 11 | 12 | 15 | 13 | 16 | 17 | 16 |
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.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 99 | 152 | 229 | 224 | 281 | 312 | 346 | 316 | 277 | 190 | 140 | 116 |
Mean daily daylight hours | 9h 10m | 10h 24m | 11h 57m | 13h 32m | 14h 54m | 15h 35m | 15h 12m | 13h 59m | 12h 28m | 10h 53m | 9h 29m | 8h 46m |
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.
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 |