30-year climate normals

Jackson County Climate and Weather Averages

Hottest month — August

95.5°

average daily high. The coldest month is January, averaging a low of 43.6°F.

Jackson County gets 40.41" of precipitation a year, and 32% 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.

Month	Avg high	Avg low	Precip
January	65.2°	43.6°	2.67"
February	69.1°	47.7°	1.96"
March	75.0°	53.9°	2.99"
April	80.8°	60.0°	3.01"
May	86.8°	67.7°	5.23"
June	92.3°	73.1°	4.21"
July	94.6°	74.5°	3.46"
August	95.5°	74.1°	3.11"
September	90.7°	70.0°	4.53"
October	84.1°	61.0°	3.97"
November	74.1°	51.4°	2.93"
December	67.3°	45.2°	2.34"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 32% falling in the wettest three months (May, Jun, Jul).

January 2.67"

February 1.96"

March 2.99"

April 3.01"

May 5.23"

June 4.21"

July 3.46"

August 3.11"

September 4.53"

October 3.97"

November 2.93"

December 2.34"

Annual total 40.41"

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 3,286

Heating degree days How much heating the climate demands 1,168

Approximate annual cooling cost At 16.44¢/kWh, Texas average $540

Approximate annual electric heating cost Lower where heating is gas rather than electric $67

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 Jackson County, where electricity is one line of eight.

Common questions

What is the weather like in Jackson County?

Jackson County averages a high of 95.5°F in August and a low of 43.6°F in January. Annual precipitation is 40.41 inches, with essentially no snow.

When is the rainy season in Jackson County?

The wettest stretch is May, Jun, Jul, which accounts for 32% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Jackson County?

The average daily high in August, the hottest month, is 95.5°F. That drives 3,286 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Jackson County?

Effectively no. Measurable snowfall is rare in Jackson County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station VICTORIA RGNL AP, TX US (USW00012912), 21.7 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.