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Monthly climate in Sparta, Wisconsin, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sparta features a humid continental climate (Dfb).Temperatures typically range between -7 °C (19 °F) and 23 °C (74 °F) through the year, but rarely can drop to -34 °C (-29 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1010 mm (39.8 inches) and receives 120 rainy days on the 1 mm (0.04 inches) threshold annually.Sparta enjoys an average of 2893 hours of sunshine throughout the year, and daylight varies from 8 hours 56 minutes to 15 hours 24 minutes per day.

Monthly average temperatures in Sparta, Wisconsin, United States §

The warmest months in Sparta are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (70 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -3 °C (19 - 27 °F) throughout the day. On average each year, Sparta experiences 70 days above 25 °C (77.0 °F) and 133 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sparta, 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 9°C
(49°F)		 17°C
(63°F)		 20°C
(68°F)		 27°C
(81°F)		 34°C
(94°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°F)		 34°C
(93°F)		 29°C
(85°F)		 23°C
(73°F)		 17°C
(63°F)
Mean maximum 6°C
(44°F)		 12°C
(54°F)		 17°C
(62°F)		 24°C
(75°F)		 31°C
(89°F)		 32°C
(91°F)		 33°C
(91°F)		 31°C
(88°F)		 30°C
(87°F)		 27°C
(81°F)		 16°C
(61°F)		 12°C
(54°F)
Average high -3°C
(27°F)		 -2°C
(29°F)		 6°C
(43°F)		 12°C
(54°F)		 20°C
(68°F)		 26°C
(79°F)		 28°C
(82°F)		 26°C
(79°F)		 23°C
(74°F)		 14°C
(58°F)		 5°C
(42°F)		 1°C
(33°F)
Daily mean -7°C
(19°F)		 -6°C
(21°F)		 2°C
(35°F)		 7°C
(45°F)		 15°C
(59°F)		 21°C
(70°F)		 23°C
(74°F)		 21°C
(70°F)		 18°C
(64°F)		 10°C
(50°F)		 2°C
(35°F)		 -3°C
(27°F)
Average low -11°C
(12°F)		 -12°C
(12°F)		 -3°C
(28°F)		 2°C
(36°F)		 10°C
(50°F)		 16°C
(61°F)		 18°C
(65°F)		 16°C
(61°F)		 13°C
(55°F)		 6°C
(42°F)		 -2°C
(28°F)		 -7°C
(20°F)
Mean minimum -25°C
(-14°F)		 -25°C
(-13°F)		 -15°C
(5°F)		 -5°C
(23°F)		 2°C
(36°F)		 11°C
(52°F)		 13°C
(56°F)		 10°C
(51°F)		 6°C
(42°F)		 -3°C
(26°F)		 -11°C
(12°F)		 -20°C
(-3°F)
Minimum -33°C
(-26°F)		 -34°C
(-29°F)		 -25°C
(-13°F)		 -11°C
(13°F)		 -0°C
(31°F)		 8°C
(46°F)		 12°C
(54°F)		 10°C
(50°F)		 2°C
(35°F)		 -6°C
(22°F)		 -16°C
(4°F)		 -24°C
(-12°F)

Compare climate in Sparta with other places

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

Monthly average precipitation in Sparta, Wisconsin, United States §

Sparta usually has the most precipitation in May, June and August, with an average of 13 rainy days and 122 mm (4.8 inches) of precipitation per month.The driest months in Sparta are January, November and December. On average, 44 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sparta, 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) 36 (1.4) 52 (2.0) 57 (2.2) 86 (3.4) 135 (5.3) 118 (4.6) 103 (4.1) 113 (4.5) 103 (4.1) 111 (4.4) 50 (2.0) 45 (1.8)
Average precipitation days (≥ 1 mm) 7 7 9 12 14 13 10 12 10 12 7 7

Monthly sunshine hours in Sparta, Wisconsin, United States §

The sunniest months in Sparta are June, July and August, when the sun shines an average of 11 hours 2 minutes a day.Least sunny months in Sparta: January, November and December receive an average of 5 hours 15 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sparta, 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 125 199 234 230 273 334 358 323 258 199 187 170
Mean daily daylight hours 9h 18m 10h 29m 11h 57m 13h 28m 14h 45m 15h 24m 15h 3m 13h 54m 12h 27m 10h 56m 9h 37m 8h 56m

Solar UV radiation in Sparta, Wisconsin, United States §

Sparta experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, 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 Sparta UV Index data.

Average daily maximum UV levels by month for Sparta, 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 8 9 10 10 9 7 5 3 2