Mosquito season in Terry County, TX: when it starts and ends
Mosquito months in Terry County
In a normal year mosquito season in Terry County, TX starts around March 20 and ends around November 14, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Terry County, and when
- Start tipping out standing water weekly by March 6.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 14.
- 1 West Nile case since 2016 (last 2024): you should use repellent at dusk June to September, more so if over 60.
Terry County against the rest of TX
Terry County has the 207th longest season of 254 TX counties, at 239 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 61°F.
- Dawson County: March 19 to November 13 (239 days, 3 WNV)
- Taylor County: March 20 to November 14 (239 days, 4 WNV)
- Childress County: March 21 to November 15 (239 days, 1 WNV)
- Collingsworth County: March 19 to November 12 (238 days, 0 WNV)
West Nile in Terry County
From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Terry County (3 neuroinvasive) across 3 years. The worst was 2003 with 2; the latest was 2024.
More: how the dates are worked out · when mosquitoes go away for the winter.