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

Mosquito months in Hardeman County

In a normal year mosquito season in Hardeman County, TX starts around March 22 and ends around November 10, about 33 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 Hardeman County, and when

• Start tipping out standing water weekly by March 8.
• Book any yard treatment for late March, ahead of the July peak.
• Repellent can go away after November 10.
• 1 West Nile case since 2016 (last 2025): you should use repellent at dusk May to September, more so if over 60.

Hardeman County against the rest of TX

Hardeman County has the 218th longest season of 254 TX counties, at 233 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 62.1°F.

• Stephens County: March 21 to November 11 (235 days, 1 WNV)
• Lubbock County: March 22 to November 11 (234 days, 52 WNV)
• Motley County: March 25 to November 13 (233 days, 0 WNV)
• Dickens County: March 25 to November 12 (232 days, 1 WNV)

West Nile in Hardeman County

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

Background: when mosquitoes go away for the winter; how the dates are worked out.