Mosquito season in Ochiltree County, TX: when it starts and ends
Mosquito months in Ochiltree County
In a normal year mosquito season in Ochiltree County, TX starts around April 1 and ends around November 7, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Ochiltree County, and when
- Start tipping out standing water weekly by March 18.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 7.
- 5 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to September, more so if over 60.
Ochiltree County against the rest of TX
Ochiltree County has the 231st longest season of 254 TX counties, at 220 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 59.1°F.
- Hale County: April 1 to November 7 (220 days, 6 WNV)
- Hudspeth County: April 1 to November 7 (220 days, 0 WNV)
- Presidio County: April 2 to November 7 (219 days, 1 WNV)
- Potter County: April 2 to November 5 (217 days, 16 WNV)
West Nile in Ochiltree County
From 1999 to 2025, CDC ArboNET counted 9 human West Nile cases in Ochiltree County (5 neuroinvasive) across 5 years. The worst was 2023 with 4; the latest was 2025.
Background: reading the West Nile counts; how the dates are worked out.