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

Mosquito months in Wilbarger County

In a normal year mosquito season in Wilbarger County, TX starts around March 9 and ends around November 18, about 36 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 Wilbarger County, and when

• Start tipping out standing water weekly by February 23.
• Book any yard treatment for early March, ahead of the July peak.
• Repellent can go away after November 18.
• 2 West Nile cases since 2016 (last 2025): you should use repellent at dusk May to September, more so if over 60.

Wilbarger County against the rest of TX

Wilbarger County has the 168th longest season of 254 TX counties, at 254 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 63.3°F.

• Scurry County: March 10 to November 20 (255 days, 0 WNV)
• Knox County: March 11 to November 21 (255 days, 1 WNV)
• Borden County: March 10 to November 19 (254 days, 0 WNV)
• Parker County: March 10 to November 19 (254 days, 8 WNV)

West Nile in Wilbarger County

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

More: how the dates are worked out · when the season starts across the US.