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

Mosquito months in Collingsworth County

In a normal year mosquito season in Collingsworth County, TX starts around March 19 and ends around November 12, about 34 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 Collingsworth County, and when

• Start tipping out standing water weekly by March 5.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 12.
• No West Nile cases since 2016, so bites in Collingsworth County are a nuisance; check window screens.

Collingsworth County against the rest of TX

Collingsworth County has the 209th longest season of 254 TX counties, at 238 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 62.5°F.

• Terry County: March 20 to November 14 (239 days, 1 WNV)
• Childress County: March 21 to November 15 (239 days, 1 WNV)
• Irion County: March 19 to November 12 (238 days, 2 WNV)
• Kerr County: March 19 to November 12 (238 days, 0 WNV)

West Nile in Collingsworth County

From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Collingsworth County (0 neuroinvasive) across 2 years. The worst was 2013 with 1; the latest was 2013.

See how the dates are worked out, and when the season starts across the US.