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Monthly climate in Niagara, Wisconsin, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Niagara features a humid continental climate (Dfb).Temperatures typically range between -9 °C (17 °F) and 21 °C (70 °F) through the year, but rarely can drop to -31 °C (-23 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 929 mm (36.6 inches) and receives 117 rainy days on the 1 mm (0.04 inches) threshold annually.Niagara enjoys an average of 2901 hours of sunshine throughout the year, and daylight varies from 8 hours 43 minutes to 15 hours 38 minutes per day.

Monthly average temperatures in Niagara, Wisconsin, United States §

The warmest months in Niagara are June, July and August, with daily mean temperatures ranging from 18 to 21 °C (65 - 70 °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 - 23 °F) throughout the day. On average each year, Niagara experiences 57 days above 25 °C (77.0 °F) and 161 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Niagara, Wisconsin, United States.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 7°C
(44°F)		 15°C
(60°F)		 18°C
(64°F)		 24°C
(75°F)		 34°C
(93°F)		 35°C
(96°F)		 38°C
(101°F)		 32°C
(90°F)		 33°C
(93°F)		 27°C
(81°F)		 24°C
(76°F)		 14°C
(57°F)
Mean maximum 5°C
(40°F)		 8°C
(48°F)		 14°C
(57°F)		 21°C
(70°F)		 30°C
(86°F)		 33°C
(92°F)		 34°C
(94°F)		 31°C
(88°F)		 30°C
(86°F)		 25°C
(77°F)		 15°C
(59°F)		 10°C
(50°F)
Average high -4°C
(24°F)		 -3°C
(26°F)		 3°C
(38°F)		 10°C
(50°F)		 19°C
(66°F)		 25°C
(77°F)		 27°C
(81°F)		 25°C
(78°F)		 21°C
(70°F)		 13°C
(55°F)		 4°C
(39°F)		 -1°C
(30°F)
Daily mean -8°C
(17°F)		 -9°C
(17°F)		 -2°C
(28°F)		 4°C
(39°F)		 12°C
(55°F)		 18°C
(65°F)		 21°C
(70°F)		 19°C
(67°F)		 15°C
(60°F)		 8°C
(46°F)		 -0°C
(32°F)		 -5°C
(23°F)
Average low -12°C
(10°F)		 -14°C
(8°F)		 -8°C
(19°F)		 -1°C
(30°F)		 6°C
(44°F)		 12°C
(54°F)		 15°C
(59°F)		 13°C
(56°F)		 10°C
(50°F)		 3°C
(38°F)		 -4°C
(25°F)		 -9°C
(16°F)
Mean minimum -25°C
(-13°F)		 -25°C
(-13°F)		 -20°C
(-4°F)		 -10°C
(14°F)		 -2°C
(30°F)		 7°C
(45°F)		 9°C
(49°F)		 6°C
(43°F)		 2°C
(36°F)		 -5°C
(24°F)		 -13°C
(9°F)		 -23°C
(-8°F)
Minimum -31°C
(-23°F)		 -30°C
(-22°F)		 -24°C
(-12°F)		 -16°C
(4°F)		 -3°C
(27°F)		 3°C
(38°F)		 7°C
(45°F)		 3°C
(38°F)		 -2°C
(29°F)		 -6°C
(21°F)		 -15°C
(5°F)		 -30°C
(-22°F)

Compare climate in Niagara with other places

Compare temperature, precipitation, sunshine, UV index in Niagara, Wisconsin, United States with other places around the world.

Monthly average precipitation in Niagara, Wisconsin, United States §

Niagara usually has the most precipitation in June, July and August, with an average of 12 rainy days and 110 mm (4.3 inches) of precipitation per month.The driest months in Niagara are January, February and March. On average, 43 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Niagara, Wisconsin, United States.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) 33 (1.3) 49 (1.9) 48 (1.9) 90 (3.5) 85 (3.3) 108 (4.3) 103 (4.1) 118 (4.6) 90 (3.5) 99 (3.9) 51 (2.0) 55 (2.2)
Average precipitation days (≥ 1 mm) 6 9 8 11 11 12 12 12 10 11 7 8

Monthly sunshine hours in Niagara, Wisconsin, United States §

The sunniest months in Niagara are June, July and August, when the sun shines an average of 11 hours 6 minutes a day.Least sunny months in Niagara: January, November and December receive an average of 4 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Niagara, Wisconsin, United States.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 119 197 242 240 299 341 362 318 266 202 167 141
Mean daily daylight hours 9h 7m 10h 22m 11h 57m 13h 34m 14h 57m 15h 38m 15h 15m 14h 1m 12h 28m 10h 51m 9h 27m 8h 43m

Solar UV radiation in Niagara, Wisconsin, United States §

Niagara experiences the highest level of ultraviolet (UV) radiation in June, 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 Niagara UV Index data.

Average daily maximum UV levels by month for Niagara, Wisconsin, United States.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 7 8 9 9 9 7 5 3 2