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United States › Missouri › Warren County › Climate Station WARRENTON 1 N, MO US Distance 5.1 mi Normals 1991–2020

30-year climate normals

Warren County Climate and Weather Averages

Hottest month — July

87.8°

average daily high. The coldest month is January, averaging a low of 19.6°F.

Warren County gets 41.47" of precipitation a year, and 34% 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° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 38.9° 19.6° 2.35"
February 44.3° 23.1° 2.18"
March 54.9° 32.9° 2.64"
April 66.4° 43.4° 4.63"
May 75.1° 52.9° 5.12"
June 83.7° 62.8° 4.51"
July 87.8° 66.4° 3.93"
August 86.5° 64.5° 3.54"
September 79.7° 56.1° 3.48"
October 68.0° 44.6° 3.23"
November 54.5° 34.1° 3.46"
December 43.0° 25.1° 2.40"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 34% falling in the wettest three months (Apr, May, Jun).

January 2.35"
February 2.18"
March 2.64"
April 4.63"
May 5.12"
June 4.51"
July 3.93"
August 3.54"
September 3.48"
October 3.23"
November 3.46"
December 2.40"
Annual total 41.47"

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 1,253
Heating degree days How much heating the climate demands 5,041
Approximate annual cooling cost At 13.68¢/kWh, Missouri average $171
Approximate annual electric heating cost Lower where heating is gas rather than electric $241

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 Warren County, where electricity is one line of eight.

Common questions

What is the weather like in Warren County?

Warren County averages a high of 87.8°F in July and a low of 19.6°F in January. Annual precipitation is 41.47 inches, with essentially no snow.

When is the rainy season in Warren County?

The wettest stretch is Apr, May, Jun, which accounts for 34% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Warren County?

The average daily high in July, the hottest month, is 87.8°F. That drives 1,253 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Warren County?

Effectively no. Measurable snowfall is rare in Warren County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station WARRENTON 1 N, MO US (USC00238725), 5.1 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, Missouri residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.