30-year climate normals

Ector County Climate and Weather Averages

Hottest month — July

95.3°

average daily high. The coldest month is January, averaging a low of 31.7°F.

Ector County gets 12.93" of precipitation a year, and 38% 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	58.1°	31.7°	0.61"
February	63.2°	35.4°	0.57"
March	71.2°	43.1°	0.73"
April	79.5°	51.2°	0.65"
May	87.7°	60.8°	1.62"
June	94.5°	68.9°	1.27"
July	95.3°	71.5°	1.53"
August	94.2°	70.6°	1.48"
September	86.7°	63.2°	1.94"
October	78.2°	52.8°	1.25"
November	66.8°	40.4°	0.72"
December	58.4°	32.4°	0.56"

Rainfall by month

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

January 0.61"

February 0.57"

March 0.73"

April 0.65"

May 1.62"

June 1.27"

July 1.53"

August 1.48"

September 1.94"

October 1.25"

November 0.72"

December 0.56"

Annual total 12.93"

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 2,478

Heating degree days How much heating the climate demands 2,512

Approximate annual cooling cost At 16.44¢/kWh, Texas average $407

Approximate annual electric heating cost Lower where heating is gas rather than electric $145

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 Ector County, where electricity is one line of eight.

Common questions

What is the weather like in Ector County?

Ector County averages a high of 95.3°F in July and a low of 31.7°F in January. Annual precipitation is 12.93 inches, with essentially no snow.

When is the rainy season in Ector County?

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

How hot does it get in Ector County?

The average daily high in July, the hottest month, is 95.3°F. That drives 2,478 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Ector County?

Effectively no. Measurable snowfall is rare in Ector County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station ODESSA SCHLEMEYER FLD, TX US (USW00003031), 9.9 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.