30-year climate normals

Benton County Climate and Weather Averages

Hottest month — July

90.3°

average daily high. The coldest month is January, averaging a low of 26.7°F.

Benton County gets 45.43" of precipitation a year, and 33% of it falls in Apr, May, Jun.

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	47.5°	26.7°	2.51"
February	52.3°	30.0°	2.24"
March	61.2°	38.0°	3.53"
April	70.2°	46.1°	4.98"
May	77.4°	55.3°	5.92"
June	85.5°	64.4°	4.29"
July	90.3°	68.5°	4.17"
August	90.2°	67.0°	3.34"
September	82.4°	58.7°	3.86"
October	71.6°	47.2°	4.00"
November	59.7°	37.3°	3.74"
December	50.0°	29.2°	2.85"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 33% falling in the wettest three months (Apr, May, Jun).

January 2.51"

February 2.24"

March 3.53"

April 4.98"

May 5.92"

June 4.29"

July 4.17"

August 3.34"

September 3.86"

October 4.00"

November 3.74"

December 2.85"

Annual total 45.43"

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 1,561

Heating degree days How much heating the climate demands 3,858

Approximate annual cooling cost At 14.36¢/kWh, Arkansas average $224

Approximate annual electric heating cost Lower where heating is gas rather than electric $194

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 Benton County, where electricity is one line of eight.

Common questions

What is the weather like in Benton County?

Benton County averages a high of 90.3°F in July and a low of 26.7°F in January. Annual precipitation is 45.43 inches, with essentially no snow.

When is the rainy season in Benton County?

The wettest stretch is Apr, May, Jun, which accounts for 33% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Benton County?

The average daily high in July, the hottest month, is 90.3°F. That drives 1,561 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Benton County?

Effectively no. Measurable snowfall is rare in Benton County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station FAYETTEVILLE NW AR AP, AR US (USW00053922), 4.5 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, Arkansas residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.