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Monthly climate in Altoona, Wisconsin, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Altoona features a humid continental climate (Dfb).Temperatures typically range between -8 °C (17 °F) and 23 °C (73 °F) through the year, but rarely can drop to -35 °C (-31 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1044 mm (41.1 inches) and receives 115 rainy days on the 1 mm (0.04 inches) threshold annually.Altoona enjoys an average of 2881 hours of sunshine throughout the year, and daylight varies from 8 hours 50 minutes to 15 hours 30 minutes per day.

Monthly average temperatures in Altoona, Wisconsin, United States §

The warmest months in Altoona are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (70 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -4 °C (17 - 24 °F) throughout the day. On average each year, Altoona experiences 66 days above 25 °C (77.0 °F) and 140 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Altoona, 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 8°C
(46°F)		 15°C
(60°F)		 20°C
(68°F)		 28°C
(83°F)		 35°C
(95°F)		 35°C
(95°F)		 34°C
(94°F)		 33°C
(91°F)		 33°C
(92°F)		 28°C
(83°F)		 23°C
(74°F)		 16°C
(61°F)
Mean maximum 5°C
(41°F)		 9°C
(48°F)		 16°C
(61°F)		 23°C
(74°F)		 30°C
(87°F)		 33°C
(91°F)		 33°C
(91°F)		 31°C
(88°F)		 30°C
(87°F)		 26°C
(79°F)		 15°C
(60°F)		 11°C
(52°F)
Average high -4°C
(25°F)		 -3°C
(27°F)		 5°C
(42°F)		 11°C
(53°F)		 20°C
(68°F)		 26°C
(79°F)		 28°C
(82°F)		 26°C
(79°F)		 23°C
(73°F)		 13°C
(56°F)		 4°C
(40°F)		 -1°C
(31°F)
Daily mean -8°C
(17°F)		 -8°C
(18°F)		 1°C
(34°F)		 6°C
(44°F)		 15°C
(59°F)		 21°C
(70°F)		 23°C
(73°F)		 21°C
(70°F)		 17°C
(63°F)		 9°C
(48°F)		 1°C
(34°F)		 -4°C
(24°F)
Average low -13°C
(9°F)		 -13°C
(9°F)		 -4°C
(26°F)		 1°C
(34°F)		 9°C
(49°F)		 16°C
(60°F)		 18°C
(64°F)		 16°C
(60°F)		 12°C
(54°F)		 5°C
(41°F)		 -3°C
(27°F)		 -9°C
(17°F)
Mean minimum -27°C
(-16°F)		 -27°C
(-16°F)		 -16°C
(3°F)		 -8°C
(17°F)		 1°C
(35°F)		 10°C
(50°F)		 13°C
(55°F)		 10°C
(50°F)		 5°C
(41°F)		 -4°C
(25°F)		 -12°C
(10°F)		 -22°C
(-8°F)
Minimum -33°C
(-26°F)		 -35°C
(-31°F)		 -26°C
(-14°F)		 -17°C
(1°F)		 -2°C
(28°F)		 6°C
(44°F)		 12°C
(54°F)		 9°C
(48°F)		 1°C
(33°F)		 -7°C
(19°F)		 -16°C
(4°F)		 -29°C
(-19°F)

Compare climate in Altoona with other places

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

Monthly average precipitation in Altoona, Wisconsin, United States §

Altoona usually has the most precipitation in May, June and August, with an average of 12 rainy days and 129 mm (5.1 inches) of precipitation per month.The driest months in Altoona are January, February and November. On average, 44 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Altoona, 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) 48 (1.9) 55 (2.2) 95 (3.7) 130 (5.1) 132 (5.2) 117 (4.6) 127 (5.0) 96 (3.8) 111 (4.4) 51 (2.0) 51 (2.0)
Average precipitation days (≥ 1 mm) 6 7 7 11 14 12 10 11 10 12 7 8

Monthly sunshine hours in Altoona, Wisconsin, United States §

The sunniest months in Altoona are June, July and August, when the sun shines an average of 11 hours 4 minutes a day.Least sunny months in Altoona: January, November and December receive an average of 5 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Altoona, 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 124 201 233 230 279 340 363 314 258 194 177 161
Mean daily daylight hours 9h 13m 10h 26m 11h 57m 13h 31m 14h 51m 15h 30m 15h 9m 13h 57m 12h 27m 10h 54m 9h 32m 8h 50m

Solar UV radiation in Altoona, Wisconsin, United States §

Altoona 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 Altoona UV Index data.

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