Mosquito season in Ector County, TX: when it starts and ends
Mosquito months in Ector County
In a normal year mosquito season in Ector County, TX starts around March 7 and ends around November 21, about 37 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Ector County, and when
- Start tipping out standing water weekly by February 21.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 21.
- 7 West Nile cases since 2016 (last 2024): you should use repellent at dusk May to September, more so if over 60.
Ector County against the rest of TX
Ector County has the 150th longest season of 254 TX counties, at 259 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 65.2°F.
- Coryell County: March 5 to November 20 (260 days, 0 WNV)
- Brown County: March 7 to November 21 (259 days, 2 WNV)
- Runnels County: March 8 to November 22 (259 days, 3 WNV)
- Mills County: March 8 to November 21 (258 days, 0 WNV)
West Nile in Ector County
From 1999 to 2025, CDC ArboNET counted 36 human West Nile cases in Ector County (23 neuroinvasive) across 12 years. The worst was 2012 with 11; the latest was 2024.
More: how the dates are worked out · reading the West Nile counts.