30-year climate normals

Ocean County Climate and Weather Averages

Hottest month — July

85.5°

average daily high. The coldest month is January, averaging a low of 21.7°F.

Ocean County gets 52.04" of precipitation a year, and 27% of it falls in Aug, Sep, Oct.

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	41.6°	21.7°	4.43"
February	44.5°	21.9°	3.19"
March	51.0°	28.3°	4.86"
April	61.7°	38.4°	3.78"
May	71.3°	48.9°	3.58"
June	79.8°	58.0°	3.92"
July	85.5°	64.2°	4.49"
August	83.7°	62.2°	5.02"
September	77.4°	53.4°	4.68"
October	66.7°	41.7°	4.54"
November	55.9°	32.4°	3.74"
December	46.8°	26.6°	5.81"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 27% falling in the wettest three months (Aug, Sep, Oct).

January 4.43"

February 3.19"

March 4.86"

April 3.78"

May 3.58"

June 3.92"

July 4.49"

August 5.02"

September 4.68"

October 4.54"

November 3.74"

December 5.81"

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 861

Heating degree days How much heating the climate demands 5,328

Approximate annual cooling cost At 23.27¢/kWh, New Jersey average $200

Approximate annual electric heating cost Lower where heating is gas rather than electric $434

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 Ocean County, where electricity is one line of eight.

Common questions

What is the weather like in Ocean County?

Ocean County averages a high of 85.5°F in July and a low of 21.7°F in January. Annual precipitation is 52.04 inches, with essentially no snow.

When is the rainy season in Ocean County?

The wettest stretch is Aug, Sep, Oct, which accounts for 27% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Ocean County?

The average daily high in July, the hottest month, is 85.5°F. That drives 861 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Ocean County?

Effectively no. Measurable snowfall is rare in Ocean County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station TOMS RIVER, NJ US (USC00288816), 6.2 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, New Jersey residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.