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

Mosquito months in Panola County

In a normal year mosquito season in Panola County, TX starts around February 24 and ends around December 2, about 40 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 Panola County, and when

• Start tipping out standing water weekly by February 10.
• Book any yard treatment for late February, ahead of the July peak.
• Repellent can go away after December 2.
• 1 West Nile case since 2016 (last 2017): you should use repellent at dusk May to September, more so if over 60.

Panola County against the rest of TX

Panola County has the 82nd longest season of 254 TX counties, at 281 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 65.4°F.

• Smith County: February 23 to December 4 (284 days, 19 WNV)
• Pecos County: February 23 to December 1 (281 days, 1 WNV)
• Colorado County: February 25 to December 3 (281 days, 2 WNV)
• McLennan County: February 25 to December 3 (281 days, 17 WNV)

West Nile in Panola County

From 1999 to 2025, CDC ArboNET counted 12 human West Nile cases in Panola County (7 neuroinvasive) across 5 years. The worst was 2012 with 6; the latest was 2017.

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