Mosquito season in Mitchell County, TX: when it starts and ends
Mosquito months in Mitchell County
In a normal year mosquito season in Mitchell County, TX starts around March 18 and ends around November 14, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Mitchell County, and when
- Start tipping out standing water weekly by March 4.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 14.
- No West Nile cases since 2016, so bites in Mitchell County are a nuisance; check window screens.
Mitchell County against the rest of TX
Mitchell County has the 203rd longest season of 254 TX counties, at 241 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 63.6°F.
- Jones County: March 17 to November 16 (244 days, 2 WNV)
- Clay County: March 20 to November 18 (243 days, 2 WNV)
- Real County: March 17 to November 12 (240 days, 0 WNV)
- Dawson County: March 19 to November 13 (239 days, 3 WNV)
West Nile in Mitchell County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in Mitchell County (1 neuroinvasive) across 2 years. The worst was 2012 with 2; the latest was 2013.
See how the dates are worked out, and when mosquitoes go away for the winter.