This weather has a price Keeping the median Dewey County home comfortable runs roughly $470 a year in heating and cooling alone. See where it lands in the monthly bill

30-year climate normals

Dewey County Climate and Weather Averages

Hottest month: July

95.3°

average daily high. The coldest month is January, averaging a low of 21.3°F.

Dewey County gets 28.8" of precipitation a year and 12.3" of snow, and 38% of it falls in May, Jun, Jul.

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	Snow
January	49.6°	21.3°	0.98"	3.2"
February	52.9°	23.4°	1.07"	2.7"
March	62.2°	32.7°	1.98"	2.1"
April	71.2°	41.7°	2.93"	0.0"
May	80.4°	53.6°	3.69"	0.0"
June	90.0°	64.0°	4.06"	0.0"
July	95.3°	67.7°	3.14"	0.0"
August	94.1°	66.1°	2.78"	0.0"
September	85.8°	57.7°	2.60"	0.0"
October	73.5°	43.7°	2.82"	0.1"
November	61.2°	31.0°	1.47"	0.8"
December	49.8°	22.8°	1.28"	3.4"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 38% falling in the wettest three months (May, Jun, Jul).

January 0.98"

February 1.07"

March 1.98"

April 2.93"

May 3.69"

June 4.06"

July 3.14"

August 2.78"

September 2.60"

October 2.82"

November 1.47"

December 1.28"

Annual total 28.8"

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 1,774

Heating degree days How much heating the climate demands 4,293

Approximate annual cooling cost At 14.33¢/kWh, Oklahoma average $254

Approximate annual electric heating cost Lower where heating is gas rather than electric $215

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 Dewey County, where electricity is one line of eight.

Common questions

What is the weather like in Dewey County?

Dewey County averages a high of 95.3°F in July and a low of 21.3°F in January. Annual precipitation is 28.8 inches, including 12.3 inches of snow.

When is the rainy season in Dewey County?

The wettest stretch is May, Jun, Jul, which accounts for 38% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Dewey County?

The average daily high in July, the hottest month, is 95.3°F. That drives 1,774 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Dewey County?

Yes. Dewey County averages 12.3 inches of snow a year.

Sources

Temperature, precipitation and snowfall normals: NOAA National Centers for Environmental Information, 1991 to 2020 Monthly Climate Normals, station TALOGA, OK US (USC00348708), 5.2 miles from the county centroid.
Heating and cooling degree days: NOAA, same station and period.
Annual figures on this page are the sum of that station's twelve monthly normals. NOAA also publishes a separately-computed annual normal, which can differ from the monthly sum by a few percent; we use the monthly series because the month-by-month breakdown above has to come from it.
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.