30-year climate normals

Wicomico County Climate and Weather Averages

Hottest month — July

88.6°

average daily high. The coldest month is January, averaging a low of 29.3°F.

Wicomico County gets 48.01" of precipitation a year, and 30% 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	47.4°	29.3°	3.58"
February	50.4°	30.4°	3.19"
March	57.8°	36.7°	4.20"
April	68.9°	46.2°	3.57"
May	77.0°	55.1°	3.72"
June	84.5°	64.6°	4.32"
July	88.6°	69.7°	4.83"
August	86.3°	67.6°	5.26"
September	80.9°	61.5°	4.33"
October	70.7°	50.0°	3.93"
November	60.1°	40.4°	3.41"
December	51.7°	32.9°	3.67"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 30% falling in the wettest three months (Jul, Aug, Sep).

January 3.58"

February 3.19"

March 4.20"

April 3.57"

May 3.72"

June 4.32"

July 4.83"

August 5.26"

September 4.33"

October 3.93"

November 3.41"

December 3.67"

Annual total 48.01"

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 1,499

Heating degree days How much heating the climate demands 3,764

Approximate annual cooling cost At 21.77¢/kWh, Maryland average $326

Approximate annual electric heating cost Lower where heating is gas rather than electric $287

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 Wicomico County, where electricity is one line of eight.

Common questions

What is the weather like in Wicomico County?

Wicomico County averages a high of 88.6°F in July and a low of 29.3°F in January. Annual precipitation is 48.01 inches, with essentially no snow.

When is the rainy season in Wicomico County?

The wettest stretch is Jul, Aug, Sep, which accounts for 30% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Wicomico County?

The average daily high in July, the hottest month, is 88.6°F. That drives 1,499 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Wicomico County?

Effectively no. Measurable snowfall is rare in Wicomico County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SALISBURY, MD US (USC00188000), 2.3 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, Maryland residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.