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United States › Texas › La Salle County › Climate Station COTULLA LA SALLE CO AP, TX US Distance 10.4 mi Normals 1991–2020

30-year climate normals

La Salle County Climate and Weather Averages

Hottest month — August

100.3°

average daily high. The coldest month is January, averaging a low of 43.9°F.

La Salle County gets 21.68" of precipitation a year, and 34% 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.

60° 80° 100° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 67.4° 43.9° 0.85"
February 73.6° 48.3° 1.26"
March 79.7° 54.8° 1.57"
April 86.0° 60.7° 1.33"
May 92.8° 68.6° 3.01"
June 97.9° 73.6° 2.20"
July 99.2° 74.7° 2.26"
August 100.3° 75.0° 1.67"
September 93.9° 70.8° 2.98"
October 86.6° 62.8° 2.39"
November 75.7° 52.4° 1.15"
December 68.7° 44.9° 1.01"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 34% falling in the wettest three months (May, Jun, Jul).

January 0.85"
February 1.26"
March 1.57"
April 1.33"
May 3.01"
June 2.20"
July 2.26"
August 1.67"
September 2.98"
October 2.39"
November 1.15"
December 1.01"
Annual total 21.68"

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 3,951
Heating degree days How much heating the climate demands 1,004
Approximate annual cooling cost At 16.44¢/kWh, Texas average $650
Approximate annual electric heating cost Lower where heating is gas rather than electric $58

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 La Salle County, where electricity is one line of eight.

Common questions

What is the weather like in La Salle County?

La Salle County averages a high of 100.3°F in August and a low of 43.9°F in January. Annual precipitation is 21.68 inches, with essentially no snow.

When is the rainy season in La Salle County?

The wettest stretch is May, Jun, Jul, which accounts for 34% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in La Salle County?

The average daily high in August, the hottest month, is 100.3°F. That drives 3,951 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in La Salle County?

Effectively no. Measurable snowfall is rare in La Salle County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station COTULLA LA SALLE CO AP, TX US (USW00012947), 10.4 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.