30-year climate normals

Douglas County Climate and Weather Averages

Hottest month — July

87.4°

average daily high. The coldest month is January, averaging a low of 22.5°F.

Douglas County gets 46.52" of precipitation a year, and 31% of it falls in Mar, Apr, May.

Temperature through the year

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

Month	Avg high	Avg low	Precip
January	43.7°	22.5°	2.96"
February	48.7°	26.0°	2.87"
March	58.1°	34.3°	3.88"
April	68.3°	43.9°	5.16"
May	75.2°	53.3°	5.26"
June	83.0°	62.1°	3.47"
July	87.4°	65.9°	4.12"
August	87.0°	64.5°	3.24"
September	79.7°	56.4°	4.02"
October	69.1°	45.5°	4.28"
November	56.9°	34.8°	4.17"
December	46.6°	26.2°	3.09"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 31% falling in the wettest three months (Mar, Apr, May).

January 2.96"

February 2.87"

March 3.88"

April 5.16"

May 5.26"

June 3.47"

July 4.12"

August 3.24"

September 4.02"

October 4.28"

November 4.17"

December 3.09"

Annual total 46.52"

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 1,203

Heating degree days How much heating the climate demands 4,526

Approximate annual cooling cost At 13.68¢/kWh, Missouri average $165

Approximate annual electric heating cost Lower where heating is gas rather than electric $217

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 Douglas County, where electricity is one line of eight.

Common questions

What is the weather like in Douglas County?

Douglas County averages a high of 87.4°F in July and a low of 22.5°F in January. Annual precipitation is 46.52 inches, with essentially no snow.

When is the rainy season in Douglas County?

The wettest stretch is Mar, Apr, May, which accounts for 31% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Douglas County?

The average daily high in July, the hottest month, is 87.4°F. That drives 1,203 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Douglas County?

Effectively no. Measurable snowfall is rare in Douglas County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station WASOLA 5N, MO US (USC00238754), 7.3 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.