30-year climate normals

Henry County Climate and Weather Averages

Hottest month — July

87.6°

average daily high. The coldest month is January, averaging a low of 25.1°F.

Henry County gets 47.34" of precipitation a year, and 30% 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	43.1°	25.1°	3.27"
February	47.6°	28.0°	3.40"
March	57.2°	35.3°	4.72"
April	68.5°	44.8°	4.55"
May	76.7°	54.4°	5.10"
June	84.7°	62.8°	4.34"
July	87.6°	66.8°	4.69"
August	87.1°	65.1°	3.15"
September	81.1°	57.3°	3.35"
October	69.5°	45.7°	3.64"
November	56.7°	35.6°	3.36"
December	46.8°	29.3°	3.77"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 30% falling in the wettest three months (Mar, Apr, May).

January 3.27"

February 3.40"

March 4.72"

April 4.55"

May 5.10"

June 4.34"

July 4.69"

August 3.15"

September 3.35"

October 3.64"

November 3.36"

December 3.77"

Annual total 47.34"

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 1,332

Heating degree days How much heating the climate demands 4,386

Approximate annual cooling cost At 14.98¢/kWh, Kentucky average $200

Approximate annual electric heating cost Lower where heating is gas rather than electric $230

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 Henry County, where electricity is one line of eight.

Common questions

What is the weather like in Henry County?

Henry County averages a high of 87.6°F in July and a low of 25.1°F in January. Annual precipitation is 47.34 inches, with essentially no snow.

When is the rainy season in Henry County?

The wettest stretch is Mar, Apr, May, which accounts for 30% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Henry County?

The average daily high in July, the hottest month, is 87.6°F. That drives 1,332 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Henry County?

Effectively no. Measurable snowfall is rare in Henry County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station FRANKFORT CAPITAL CITY AP, KY US (USW00053841), 21.8 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, Kentucky residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.