30-year climate normals

Caroline County Climate and Weather Averages

Hottest month — July

88.7°

average daily high. The coldest month is January, averaging a low of 27.9°F.

Caroline County gets 45.81" of precipitation a year, and 28% of it falls in Jun, Jul, Aug.

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	47.2°	27.9°	3.48"
February	50.9°	29.5°	2.87"
March	59.0°	35.9°	3.89"
April	69.6°	45.2°	3.43"
May	77.0°	54.7°	4.33"
June	84.8°	63.2°	4.14"
July	88.7°	67.8°	3.98"
August	86.9°	66.1°	4.93"
September	80.7°	59.4°	4.04"
October	70.1°	47.5°	3.65"
November	59.5°	37.6°	3.39"
December	50.8°	30.9°	3.68"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 28% falling in the wettest three months (Jun, Jul, Aug).

January 3.48"

February 2.87"

March 3.89"

April 3.43"

May 4.33"

June 4.14"

July 3.98"

August 4.93"

September 4.04"

October 3.65"

November 3.39"

December 3.68"

Annual total 45.81"

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 1,420

Heating degree days How much heating the climate demands 3,957

Approximate annual cooling cost At 17.61¢/kWh, Virginia average $250

Approximate annual electric heating cost Lower where heating is gas rather than electric $244

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 Caroline County, where electricity is one line of eight.

Common questions

What is the weather like in Caroline County?

Caroline County averages a high of 88.7°F in July and a low of 27.9°F in January. Annual precipitation is 45.81 inches, with essentially no snow.

When is the rainy season in Caroline County?

The wettest stretch is Jun, Jul, Aug, which accounts for 28% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Caroline County?

The average daily high in July, the hottest month, is 88.7°F. That drives 1,420 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Caroline County?

Effectively no. Measurable snowfall is rare in Caroline County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station ASHLAND HANOVER CO MUNI AP, VA US (USW00093775), 22.5 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, Virginia residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.