30-year climate normals

Sutton County Climate and Weather Averages

Hottest month — August

95.8°

average daily high. The coldest month is January, averaging a low of 30.8°F.

Sutton County gets 22.66" of precipitation a year, and 36% of it falls in Jul, Aug, Sep.

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	61.0°	30.8°	1.01"
February	66.1°	34.9°	1.24"
March	73.1°	43.2°	1.55"
April	80.9°	51.1°	1.69"
May	87.6°	61.9°	2.37"
June	93.5°	69.4°	2.62"
July	95.6°	71.5°	2.28"
August	95.8°	70.6°	2.60"
September	89.1°	63.7°	3.21"
October	80.7°	52.4°	2.15"
November	69.9°	40.8°	1.20"
December	62.4°	32.0°	0.74"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 36% falling in the wettest three months (Jul, Aug, Sep).

January 1.01"

February 1.24"

March 1.55"

April 1.69"

May 2.37"

June 2.62"

July 2.28"

August 2.60"

September 3.21"

October 2.15"

November 1.20"

December 0.74"

Annual total 22.66"

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 2,567

Heating degree days How much heating the climate demands 2,263

Approximate annual cooling cost At 16.44¢/kWh, Texas average $422

Approximate annual electric heating cost Lower where heating is gas rather than electric $130

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 Sutton County, where electricity is one line of eight.

Common questions

What is the weather like in Sutton County?

Sutton County averages a high of 95.8°F in August and a low of 30.8°F in January. Annual precipitation is 22.66 inches, with essentially no snow.

When is the rainy season in Sutton County?

The wettest stretch is Jul, Aug, Sep, which accounts for 36% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Sutton County?

The average daily high in August, the hottest month, is 95.8°F. That drives 2,567 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Sutton County?

Effectively no. Measurable snowfall is rare in Sutton County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SONORA, TX US (USC00418449), 9.2 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, Texas residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.