Climate Insights for Gun Barrel City

Henderson County, Texas, United States

Hottest
August
36°C peak
Coldest
January
5°C low
Wettest
May
156mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Gun Barrel City is warm and mild. The average annual temperature is 20°C and approximately 1163mm of precipitation falls per year. Gun Barrel City receives a notable amount of rainfall throughout the year, including during its driest month. Gun Barrel City is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to 5°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 15° Average: 9° Min: 5° Feb Max: 17° Average: 11° Min: 7° Mar Max: 22° Average: 16° Min: 12° Apr Max: 25° Average: 19° Min: 14° May Max: 29° Average: 24° Min: 19° Jun Max: 33° Average: 28° Min: 24° Jul Max: 35° Average: 30° Min: 25° Aug Max: 36° Average: 30° Min: 25° Sep Max: 33° Average: 27° Min: 22° Oct Max: 28° Average: 21° Min: 16° Nov Max: 21° Average: 15° Min: 10° Dec Max: 17° Average: 12° Min: 7°
Max
Average
Min

Temperatures in Gun Barrel City vary considerably across the year, with a 31°C difference between the coldest and warmest months. August is the hottest month, with daytime highs reaching 36°C and an average of 30°C. January is the coolest month, with minimum temperatures around 5°C and an average of 9°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 76mm Snow: 0mm Feb Precipitation: 93mm Snow: 2mm Mar Precipitation: 109mm Snow: 0mm Apr Precipitation: 149mm Snow: 0mm May Precipitation: 156mm Snow: 0mm Jun Precipitation: 85mm Snow: 0mm Jul Precipitation: 54mm Snow: 0mm Aug Precipitation: 68mm Snow: 0mm Sep Precipitation: 62mm Snow: 0mm Oct Precipitation: 127mm Snow: 0mm Nov Precipitation: 85mm Snow: 0mm Dec Precipitation: 98mm Snow: 0mm
Precipitation
Snow

Gun Barrel City is a moderately rainy area, receiving approximately 1163mm of precipitation annually, which averages out to around 97mm per month. The wettest month is May, averaging 156mm of rainfall. April and October also tend to see above-average precipitation. The driest month is July, with just 54mm. That's 102mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 20km/h Feb Wind Speed: 21km/h Mar Wind Speed: 21km/h Apr Wind Speed: 22km/h May Wind Speed: 20km/h Jun Wind Speed: 17km/h Jul Wind Speed: 17km/h Aug Wind Speed: 16km/h Sep Wind Speed: 15km/h Oct Wind Speed: 18km/h Nov Wind Speed: 19km/h Dec Wind Speed: 19km/h
Wind Speed

Gun Barrel City is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 20km/h in winter, 21km/h in spring, 17km/h in summer, 17km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

83 days until Summer

It is currently spring in Gun Barrel City, which began on March 20, 2026. Gun Barrel City is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 36°C, while the coldest stretch bottoms out in January near 5°C. Summer is next, beginning on June 21, 2026 — 83 days from now.

Spring

Temperatures range from 12 to 29°C. Rainfall is heavy, totalling around 414mm across the season with a monthly average of 138mm. Winds are moderate at around 21km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 24 to 36°C. Precipitation is moderate at around 207mm for the season, averaging 69mm per month. Winds are moderate at around 17km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 10 to 33°C. Precipitation is moderate at around 274mm for the season, averaging 91mm per month. Winds are moderate at around 17km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 5 to 17°C. Precipitation is moderate at around 268mm for the season, averaging 89mm per month. Winds are moderate at around 20km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Gun Barrel City based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
5 °C
15 °C
20 km/h
76 mm
0 cm
Feb
7 °C
17 °C
21 km/h
93 mm
2 cm
Mar Current
12 °C
22 °C
21 km/h
109 mm
0 cm
Apr
14 °C
25 °C
22 km/h
149 mm
0 cm
May
19 °C
29 °C
20 km/h
156 mm
0 cm
Jun
24 °C
33 °C
17 km/h
85 mm
0 cm
Jul
25 °C
35 °C
17 km/h
54 mm
0 cm
Aug
25 °C
36 °C
16 km/h
68 mm
0 cm
Sep
22 °C
33 °C
15 km/h
62 mm
0 cm
Oct
16 °C
28 °C
18 km/h
127 mm
0 cm
Nov
10 °C
21 °C
19 km/h
85 mm
0 cm
Dec
7 °C
17 °C
19 km/h
98 mm
0 cm
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Metric (°C, km/h)