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Monthly climate in Winona, Missouri, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Winona features a humid subtropical climate (Cfa).Temperatures typically range between 2 °C (36 °F) and 26 °C (80 °F) through the year, but rarely can drop to -22 °C (-7 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 1288 mm (50.7 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually.Winona enjoys an average of 2976 hours of sunshine throughout the year, and daylight varies from 9 hours 39 minutes to 14 hours 38 minutes per day.

Monthly average temperatures in Winona, Missouri, United States §

The warmest months in Winona are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (75 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 5 °C (36 - 42 °F) throughout the day. On average each year, Winona experiences 121 days above 25 °C (77.0 °F) and 68 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Winona, Missouri, 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 21°C
(70°F)		 26°C
(79°F)		 29°C
(85°F)		 30°C
(87°F)		 32°C
(91°F)		 38°C
(100°F)		 37°C
(100°F)		 36°C
(97°F)		 35°C
(96°F)		 33°C
(92°F)		 28°C
(83°F)		 25°C
(78°F)
Mean maximum 17°C
(64°F)		 23°C
(73°F)		 26°C
(79°F)		 28°C
(82°F)		 31°C
(87°F)		 33°C
(91°F)		 36°C
(97°F)		 35°C
(95°F)		 34°C
(93°F)		 31°C
(89°F)		 23°C
(74°F)		 21°C
(70°F)
Average high 7°C
(44°F)		 9°C
(49°F)		 15°C
(60°F)		 19°C
(66°F)		 24°C
(75°F)		 29°C
(84°F)		 32°C
(89°F)		 30°C
(86°F)		 29°C
(84°F)		 21°C
(71°F)		 14°C
(57°F)		 11°C
(51°F)
Daily mean 2°C
(36°F)		 4°C
(39°F)		 10°C
(50°F)		 13°C
(56°F)		 19°C
(67°F)		 24°C
(75°F)		 26°C
(80°F)		 25°C
(77°F)		 23°C
(73°F)		 15°C
(60°F)		 8°C
(46°F)		 5°C
(42°F)
Average low -2°C
(29°F)		 -1°C
(30°F)		 5°C
(40°F)		 8°C
(46°F)		 15°C
(59°F)		 19°C
(67°F)		 21°C
(71°F)		 20°C
(68°F)		 17°C
(63°F)		 10°C
(50°F)		 2°C
(36°F)		 1°C
(34°F)
Mean minimum -12°C
(11°F)		 -13°C
(9°F)		 -6°C
(22°F)		 -1°C
(30°F)		 7°C
(44°F)		 14°C
(58°F)		 17°C
(63°F)		 15°C
(59°F)		 10°C
(49°F)		 -1°C
(31°F)		 -6°C
(22°F)		 -8°C
(18°F)
Minimum -17°C
(2°F)		 -22°C
(-7°F)		 -13°C
(8°F)		 -4°C
(25°F)		 2°C
(37°F)		 10°C
(51°F)		 15°C
(60°F)		 14°C
(57°F)		 7°C
(46°F)		 -5°C
(24°F)		 -11°C
(13°F)		 -12°C
(10°F)

Compare climate in Winona with other places

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

Monthly average precipitation in Winona, Missouri, United States §

Winona usually has the most precipitation in March, April and May, with an average of 13 rainy days and 163 mm (6.4 inches) of precipitation per month.The driest months in Winona are September, November and December. On average, 70 mm (2.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Winona, Missouri, 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) 82 (3.2) 107 (4.2) 150 (5.9) 160 (6.3) 180 (7.1) 87 (3.4) 86 (3.4) 104 (4.1) 58 (2.3) 121 (4.8) 76 (3.0) 76 (3.0)
Average precipitation days (≥ 1 mm) 8 9 13 12 15 11 10 12 6 10 9 7

Monthly sunshine hours in Winona, Missouri, United States §

The sunniest months in Winona are June, July and August, when the sun shines an average of 10 hours 46 minutes a day.Least sunny months in Winona: January, February and December receive an average of 5 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Winona, Missouri, 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 139 177 206 235 282 324 345 321 290 238 216 197
Mean daily daylight hours 9h 56m 10h 50m 11h 59m 13h 10m 14h 9m 14h 38m 14h 22m 13h 29m 12h 21m 11h 11m 10h 10m 9h 39m

Solar UV radiation in Winona, Missouri, United States §

Winona experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Winona UV Index data.

Average daily maximum UV levels by month for Winona, Missouri, 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) 3 6 7 10 10 11 11 10 9 7 5 3