Mosquito season in Irion County, TX: when it starts and ends
Mosquito months in Irion County
In a normal year mosquito season in Irion County, TX starts around March 19 and ends around November 12, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Irion 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.
- 2 West Nile cases since 2016 (last 2016): you should use repellent at dusk May to September, more so if over 60.
Irion County against the rest of TX
Irion County has the 210th longest season of 254 TX counties, at 238 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 63.8°F.
- Childress County: March 21 to November 15 (239 days, 1 WNV)
- Collingsworth County: March 19 to November 12 (238 days, 0 WNV)
- Kerr County: March 19 to November 12 (238 days, 0 WNV)
- King County: March 19 to November 12 (238 days, 0 WNV)
West Nile in Irion County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Irion County (1 neuroinvasive) across 1 year. The worst was 2016 with 2; the latest was 2016.
Background: when the season starts across the US; how the dates are worked out.