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United States › Texas › Waller County › Climate Station HOUSTON HOOKS MEM AP, TX US Distance 25.8 mi Normals 1991–2020

30-year climate normals

Waller County Climate and Weather Averages

Hottest month — August

94.8°

average daily high. The coldest month is January, averaging a low of 42.7°F.

Waller County gets 50.82" of precipitation a year, and 31% of it falls in Aug, Sep, Oct.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 63.2° 42.7° 3.53"
February 67.5° 46.8° 2.70"
March 73.8° 53.0° 3.36"
April 79.7° 59.0° 3.83"
May 86.5° 67.1° 4.94"
June 91.8° 73.2° 5.37"
July 94.2° 74.7° 3.73"
August 94.8° 74.2° 4.87"
September 90.5° 69.5° 5.19"
October 82.4° 59.5° 5.58"
November 72.1° 49.9° 3.98"
December 64.9° 44.3° 3.74"

Rainfall by month

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

January 3.53"
February 2.70"
March 3.36"
April 3.83"
May 4.94"
June 5.37"
July 3.73"
August 4.87"
September 5.19"
October 5.58"
November 3.98"
December 3.74"
Annual total 50.82"

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 3,146
Heating degree days How much heating the climate demands 1,368
Approximate annual cooling cost At 16.44¢/kWh, Texas average $517
Approximate annual electric heating cost Lower where heating is gas rather than electric $79

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 Waller County, where electricity is one line of eight.

Common questions

What is the weather like in Waller County?

Waller County averages a high of 94.8°F in August and a low of 42.7°F in January. Annual precipitation is 50.82 inches, with essentially no snow.

When is the rainy season in Waller County?

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

How hot does it get in Waller County?

The average daily high in August, the hottest month, is 94.8°F. That drives 3,146 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Waller County?

Effectively no. Measurable snowfall is rare in Waller County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station HOUSTON HOOKS MEM AP, TX US (USW00053910), 25.8 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.