30-year climate normals

Cheatham County Climate and Weather Averages

Hottest month — July

87.6°

average daily high. The coldest month is January, averaging a low of 26.8°F.

Cheatham County gets 52.04" of precipitation a year, and 29% 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	46.9°	26.8°	4.16"
February	50.9°	29.2°	4.99"
March	59.6°	36.9°	4.45"
April	69.7°	45.3°	5.06"
May	77.0°	54.1°	5.64"
June	84.4°	62.8°	3.96"
July	87.6°	66.3°	4.47"
August	87.3°	64.9°	3.30"
September	81.2°	57.5°	3.61"
October	71.9°	45.9°	3.62"
November	58.9°	36.0°	3.83"
December	49.2°	29.3°	4.95"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 29% falling in the wettest three months (Mar, Apr, May).

January 4.16"

February 4.99"

March 4.45"

April 5.06"

May 5.64"

June 3.96"

July 4.47"

August 3.30"

September 3.61"

October 3.62"

November 3.83"

December 4.95"

Annual total 52.04"

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 1,328

Heating degree days How much heating the climate demands 4,037

Approximate annual cooling cost At 14.47¢/kWh, Tennessee average $192

Approximate annual electric heating cost Lower where heating is gas rather than electric $204

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 Cheatham County, where electricity is one line of eight.

Common questions

What is the weather like in Cheatham County?

Cheatham County averages a high of 87.6°F in July and a low of 26.8°F in January. Annual precipitation is 52.04 inches, with essentially no snow.

When is the rainy season in Cheatham County?

The wettest stretch is Mar, Apr, May, which accounts for 29% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Cheatham County?

The average daily high in July, the hottest month, is 87.6°F. That drives 1,328 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Cheatham County?

Effectively no. Measurable snowfall is rare in Cheatham County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station CHARLOTTE, TN US (USC00401640), 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, Tennessee residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.