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United States › Minnesota › Winona County › Climate Station LA CROSSE MUNI AP, WI US Distance 27 mi Normals 1991–2020

30-year climate normals

Winona County Climate and Weather Averages

Hottest month — July

85.4°

average daily high. The coldest month is January, averaging a low of 10.5°F.

Winona County gets 35.23" of precipitation a year and 46.3" of snow, and 39% of it falls in May, Jun, Jul.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

20° 40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low PrecipSnow
January 27.4° 10.5° 1.25" 11.8"
February 32.5° 14.2° 1.19" 9.7"
March 45.6° 26.0° 2.04" 7.3"
April 59.6° 38.4° 3.75" 2.9"
May 72.0° 50.1° 4.33" 0.0"
June 81.7° 60.4° 5.08" 0.0"
July 85.4° 64.5° 4.23" 0.0"
August 83.2° 62.3° 3.90" 0.0"
September 75.5° 54.1° 3.63" 0.0"
October 61.6° 41.9° 2.49" 0.3"
November 45.8° 29.5° 1.85" 3.4"
December 32.6° 17.6° 1.49" 10.9"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 39% falling in the wettest three months (May, Jun, Jul).

January 1.25"
February 1.19"
March 2.04"
April 3.75"
May 4.33"
June 5.08"
July 4.23"
August 3.90"
September 3.63"
October 2.49"
November 1.85"
December 1.49"
Annual total 35.23"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 942
Heating degree days How much heating the climate demands 6,788
Approximate annual cooling cost At 16.95¢/kWh, Minnesota average $160
Approximate annual electric heating cost Lower where heating is gas rather than electric $403

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Winona County, where electricity is one line of eight.

Common questions

What is the weather like in Winona County?

Winona County averages a high of 85.4°F in July and a low of 10.5°F in January. Annual precipitation is 35.23 inches, including 46.3 inches of snow.

When is the rainy season in Winona County?

The wettest stretch is May, Jun, Jul, which accounts for 39% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Winona County?

The average daily high in July, the hottest month, is 85.4°F. That drives 942 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Winona County?

Yes. Winona County averages 46.3 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station LA CROSSE MUNI AP, WI US (USW00014920), 27 miles from the county centroid.
  • Heating and cooling degree days — NOAA, same station and period.
  • Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, Minnesota residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.