30-year climate normals

Isle of Wight County Climate and Weather Averages

Hottest month — July

89.7°

average daily high. The coldest month is January, averaging a low of 29.5°F.

Isle of Wight County gets 49.69" of precipitation a year, and 34% of it falls in Jul, Aug, Sep.

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	50.2°	29.5°	3.65"
February	53.2°	31.2°	2.87"
March	61.0°	37.1°	3.82"
April	71.2°	46.3°	3.58"
May	78.3°	55.8°	3.81"
June	86.0°	64.3°	4.68"
July	89.7°	69.1°	5.56"
August	87.6°	67.4°	5.34"
September	81.7°	61.0°	5.85"
October	72.1°	48.8°	3.85"
November	62.1°	38.6°	3.14"
December	53.7°	32.6°	3.54"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 34% falling in the wettest three months (Jul, Aug, Sep).

January 3.65"

February 2.87"

March 3.82"

April 3.58"

May 3.81"

June 4.68"

July 5.56"

August 5.34"

September 5.85"

October 3.85"

November 3.14"

December 3.54"

Annual total 49.69"

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 1,592

Heating degree days How much heating the climate demands 3,557

Approximate annual cooling cost At 17.61¢/kWh, Virginia average $280

Approximate annual electric heating cost Lower where heating is gas rather than electric $219

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 Isle of Wight County, where electricity is one line of eight.

Common questions

What is the weather like in Isle of Wight County?

Isle of Wight County averages a high of 89.7°F in July and a low of 29.5°F in January. Annual precipitation is 49.69 inches, with essentially no snow.

When is the rainy season in Isle of Wight County?

The wettest stretch is Jul, Aug, Sep, which accounts for 34% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Isle of Wight County?

The average daily high in July, the hottest month, is 89.7°F. That drives 1,592 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Isle of Wight County?

Effectively no. Measurable snowfall is rare in Isle of Wight County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station NORFOLK RICH, VA US (USW00093773), 17.5 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.