30-year climate normals

Okmulgee County Climate and Weather Averages

Hottest month — July

94.0°

average daily high. The coldest month is January, averaging a low of 28.1°F.

Okmulgee County gets 42.09" of precipitation a year, and 36% 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	49.7°	28.1°	1.59"
February	54.7°	31.9°	1.80"
March	64.0°	40.8°	3.22"
April	73.1°	49.6°	4.46"
May	80.2°	59.6°	6.08"
June	89.0°	68.7°	4.82"
July	94.0°	72.5°	3.82"
August	93.5°	70.7°	3.64"
September	85.3°	62.9°	3.67"
October	74.2°	50.6°	3.84"
November	62.1°	39.2°	2.64"
December	51.7°	30.8°	2.51"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 36% falling in the wettest three months (Apr, May, Jun).

January 1.59"

February 1.80"

March 3.22"

April 4.46"

May 6.08"

June 4.82"

July 3.82"

August 3.64"

September 3.67"

October 3.84"

November 2.64"

December 2.51"

Annual total 42.09"

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 2,146

Heating degree days How much heating the climate demands 3,374

Approximate annual cooling cost At 13.38¢/kWh, Oklahoma average $287

Approximate annual electric heating cost Lower where heating is gas rather than electric $158

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 Okmulgee County, where electricity is one line of eight.

Common questions

What is the weather like in Okmulgee County?

Okmulgee County averages a high of 94.0°F in July and a low of 28.1°F in January. Annual precipitation is 42.09 inches, with essentially no snow.

When is the rainy season in Okmulgee County?

The wettest stretch is Apr, May, Jun, which accounts for 36% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Okmulgee County?

The average daily high in July, the hottest month, is 94.0°F. That drives 2,146 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Okmulgee County?

Effectively no. Measurable snowfall is rare in Okmulgee County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station TULSA R L JONES JR AP, OK US (USW00053908), 27.4 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, Oklahoma residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.