30-year climate normals

Bryan County Climate and Weather Averages

Hottest month — August

94.3°

average daily high. The coldest month is January, averaging a low of 32.9°F.

Bryan County gets 45.25" of precipitation a year, and 31% 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	53.3°	32.9°	2.43"
February	57.4°	36.6°	2.93"
March	66.0°	44.0°	4.04"
April	73.0°	51.9°	3.96"
May	80.4°	60.1°	5.82"
June	88.7°	69.2°	4.40"
July	93.2°	71.9°	3.27"
August	94.3°	71.4°	2.67"
September	87.3°	64.7°	4.03"
October	75.8°	53.0°	4.69"
November	65.1°	42.9°	3.55"
December	55.2°	35.0°	3.46"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 31% falling in the wettest three months (Apr, May, Jun).

January 2.43"

February 2.93"

March 4.04"

April 3.96"

May 5.82"

June 4.40"

July 3.27"

August 2.67"

September 4.03"

October 4.69"

November 3.55"

December 3.46"

Annual total 45.25"

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 2,236

Heating degree days How much heating the climate demands 2,763

Approximate annual cooling cost At 13.38¢/kWh, Oklahoma average $299

Approximate annual electric heating cost Lower where heating is gas rather than electric $129

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 Bryan County, where electricity is one line of eight.

Common questions

What is the weather like in Bryan County?

Bryan County averages a high of 94.3°F in August and a low of 32.9°F in January. Annual precipitation is 45.25 inches, with essentially no snow.

When is the rainy season in Bryan County?

The wettest stretch is Apr, May, Jun, which accounts for 31% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Bryan County?

The average daily high in August, the hottest month, is 94.3°F. That drives 2,236 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Bryan County?

Effectively no. Measurable snowfall is rare in Bryan County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station DURANT 6SSE MESONET, OK US (USC00342680), 4.3 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, Oklahoma residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.