30-year climate normals

Chariton County Climate and Weather Averages

Hottest month — July

87.8°

average daily high. The coldest month is January, averaging a low of 18.3°F.

Chariton County gets 40.02" of precipitation a year, and 37% 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.

Month	Avg high	Avg low	Precip
January	37.1°	18.3°	1.52"
February	42.5°	22.3°	1.84"
March	53.9°	32.1°	2.79"
April	65.1°	42.6°	4.04"
May	75.0°	53.7°	5.15"
June	83.9°	63.6°	5.54"
July	87.8°	67.1°	4.21"
August	86.7°	64.8°	3.64"
September	80.0°	55.9°	3.73"
October	68.0°	44.0°	3.49"
November	53.9°	32.9°	2.43"
December	41.9°	23.7°	1.64"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 37% falling in the wettest three months (May, Jun, Jul).

January 1.52"

February 1.84"

March 2.79"

April 4.04"

May 5.15"

June 5.54"

July 4.21"

August 3.64"

September 3.73"

October 3.49"

November 2.43"

December 1.64"

Annual total 40.02"

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 1,296

Heating degree days How much heating the climate demands 5,257

Approximate annual cooling cost At 13.68¢/kWh, Missouri average $177

Approximate annual electric heating cost Lower where heating is gas rather than electric $252

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 Chariton County, where electricity is one line of eight.

Common questions

What is the weather like in Chariton County?

Chariton County averages a high of 87.8°F in July and a low of 18.3°F in January. Annual precipitation is 40.02 inches, with essentially no snow.

When is the rainy season in Chariton County?

The wettest stretch is May, Jun, Jul, which accounts for 37% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Chariton County?

The average daily high in July, the hottest month, is 87.8°F. That drives 1,296 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Chariton County?

Effectively no. Measurable snowfall is rare in Chariton County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SALISBURY, MO US (USC00237514), 10.3 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.