This weather has a price Keeping the median Delta County home comfortable runs roughly $528 a year in heating and cooling alone. See where it lands in the monthly bill

30-year climate normals

Delta County Climate and Weather Averages

Hottest month: August

94.1°

average daily high. The coldest month is January, averaging a low of 33.6°F.

Delta County gets 49.25" of precipitation a year, and 31% of it falls in Oct, Nov, Dec.

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	54.4°	33.6°	3.32"
February	58.7°	37.8°	3.45"
March	66.4°	44.3°	4.31"
April	74.6°	52.5°	4.16"
May	81.7°	62.1°	4.91"
June	89.5°	70.3°	4.17"
July	93.8°	73.7°	3.42"
August	94.1°	72.5°	3.04"
September	88.1°	65.1°	3.25"
October	78.0°	54.2°	5.75"
November	66.2°	43.9°	5.01"
December	56.7°	36.9°	4.46"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 31% falling in the wettest three months (Oct, Nov, Dec).

January 3.32"

February 3.45"

March 4.31"

April 4.16"

May 4.91"

June 4.17"

July 3.42"

August 3.04"

September 3.25"

October 5.75"

November 5.01"

December 4.46"

Annual total 49.25"

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 2,425

Heating degree days How much heating the climate demands 2,558

Approximate annual cooling cost At 15.91¢/kWh, Texas average $386

Approximate annual electric heating cost Lower where heating is gas rather than electric $142

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 Delta County, where electricity is one line of eight.

Common questions

What is the weather like in Delta County?

Delta County averages a high of 94.1°F in August and a low of 33.6°F in January. Annual precipitation is 49.25 inches, with essentially no snow.

When is the rainy season in Delta County?

The wettest stretch is Oct, Nov, Dec, which accounts for 31% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Delta County?

The average daily high in August, the hottest month, is 94.1°F. That drives 2,425 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Delta County?

The weather station used for Delta County, COOPER DAM, TX US, reports temperature and precipitation but not snowfall, so there is no snow normal to quote here. Precipitation that falls as snow is still counted in the 49.25 inches above, measured as melted water.

Sources

Temperature, precipitation and snowfall normals: NOAA National Centers for Environmental Information, 1991 to 2020 Monthly Climate Normals, station COOPER DAM, TX US (USC00411968), 6.1 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, Texas residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.