Mosquito season in Gonzales County, TX: when it starts and ends

Mosquito months in Gonzales County

In a normal year mosquito season in Gonzales County, TX starts around February 6 and ends around December 12, about 44 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Gonzales County, and when

• Start tipping out standing water weekly by January 23.
• Book any yard treatment for early February, ahead of the August peak.
• Repellent can go away after December 12.
• 1 West Nile case since 2016 (last 2024): you should use repellent at dusk May to October, more so if over 60.

Gonzales County against the rest of TX

Gonzales County has the 57th longest season of 254 TX counties, at 309 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 68.8°F.

• Washington County: February 10 to December 18 (311 days, 0 WNV)
• Burleson County: March 5 to January 10 (311 days, 1 WNV)
• Waller County: February 11 to December 16 (308 days, 4 WNV)
• Guadalupe County: February 4 to December 8 (307 days, 1 WNV)

West Nile in Gonzales County

From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Gonzales County (2 neuroinvasive) across 2 years. The worst was 2024 with 1; the latest was 2024.

Background: when the season starts across the US; how the dates are worked out.