30-year climate normals

Walker County Climate and Weather Averages

Hottest month — August

95.2°

average daily high. The coldest month is January, averaging a low of 41.2°F.

Walker County gets 43.65" of precipitation a year, and 29% 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	61.0°	41.2°	3.64"
February	64.9°	44.9°	2.87"
March	72.1°	51.3°	3.36"
April	78.8°	57.5°	3.23"
May	86.0°	66.2°	4.03"
June	91.7°	72.8°	4.57"
July	94.2°	74.6°	2.75"
August	95.2°	74.4°	3.24"
September	89.7°	68.7°	3.22"
October	80.7°	58.8°	4.36"
November	69.9°	49.2°	4.25"
December	62.3°	42.7°	4.13"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 29% falling in the wettest three months (Oct, Nov, Dec).

January 3.64"

February 2.87"

March 3.36"

April 3.23"

May 4.03"

June 4.57"

July 2.75"

August 3.24"

September 3.22"

October 4.36"

November 4.25"

December 4.13"

Annual total 43.65"

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 3,014

Heating degree days How much heating the climate demands 1,637

Approximate annual cooling cost At 16.44¢/kWh, Texas average $496

Approximate annual electric heating cost Lower where heating is gas rather than electric $94

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 Walker County, where electricity is one line of eight.

Common questions

What is the weather like in Walker County?

Walker County averages a high of 95.2°F in August and a low of 41.2°F in January. Annual precipitation is 43.65 inches, with essentially no snow.

When is the rainy season in Walker County?

The wettest stretch is Oct, Nov, Dec, which accounts for 29% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Walker County?

The average daily high in August, the hottest month, is 95.2°F. That drives 3,014 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Walker County?

Effectively no. Measurable snowfall is rare in Walker County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station HUNTSVILLE MUNI AP, TX US (USW00053903), 1 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.