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United States › Wisconsin › Ozaukee County › Climate Station BELGIUM WWTP, WI US Distance 0.9 mi Normals 1991–2020

30-year climate normals

Ozaukee County Climate and Weather Averages

Hottest month — July

79.5°

average daily high. The coldest month is January, averaging a low of 11.2°F.

Ozaukee County gets 31.88" of precipitation a year, and 35% of it falls in Apr, May, Jun.

Temperature through the year

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

20° 40° 60° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 27.1° 11.2° 1.43"
February 30.7° 13.4° 1.32"
March 39.8° 23.4° 1.99"
April 51.6° 33.4° 3.57"
May 63.2° 43.6° 3.71"
June 74.0° 53.5° 3.86"
July 79.5° 59.5° 3.52"
August 78.0° 58.5° 3.26"
September 71.4° 50.3° 2.75"
October 58.4° 39.3° 2.70"
November 44.3° 28.1° 1.96"
December 32.6° 17.9° 1.81"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 35% falling in the wettest three months (Apr, May, Jun).

January 1.43"
February 1.32"
March 1.99"
April 3.57"
May 3.71"
June 3.86"
July 3.52"
August 3.26"
September 2.75"
October 2.70"
November 1.96"
December 1.81"
Annual total 31.88"

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 390
Heating degree days How much heating the climate demands 7,603
Approximate annual cooling cost At 19.74¢/kWh, Wisconsin average $77
Approximate annual electric heating cost Lower where heating is gas rather than electric $525

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 Ozaukee County, where electricity is one line of eight.

Common questions

What is the weather like in Ozaukee County?

Ozaukee County averages a high of 79.5°F in July and a low of 11.2°F in January. Annual precipitation is 31.88 inches, with essentially no snow.

When is the rainy season in Ozaukee County?

The wettest stretch is Apr, May, Jun, which accounts for 35% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Ozaukee County?

The average daily high in July, the hottest month, is 79.5°F. That drives 390 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Ozaukee County?

Effectively no. Measurable snowfall is rare in Ozaukee County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station BELGIUM WWTP, WI US (USC00470652), 0.9 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, Wisconsin residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.