Mosquito season in Midland County, TX: when it starts and ends
Mosquito months in Midland County
In a normal year mosquito season in Midland County, TX starts around March 10 and ends around November 18, about 36 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Midland County, and when
- Start tipping out standing water weekly by February 24.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 18.
- 9 West Nile cases since 2016 (last 2025): you should use repellent at dusk May to September, more so if over 60.
Midland County against the rest of TX
Midland County has the 174th longest season of 254 TX counties, at 253 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 65.2°F.
- Crockett County: March 8 to November 16 (253 days, 0 WNV)
- Martin County: March 10 to November 18 (253 days, 2 WNV)
- Somervell County: March 11 to November 18 (252 days, 1 WNV)
- Loving County: March 10 to November 16 (251 days, 0 WNV)
West Nile in Midland County
From 1999 to 2025, CDC ArboNET counted 41 human West Nile cases in Midland County (24 neuroinvasive) across 13 years. The worst was 2003 with 13; the latest was 2025.
Background: reading the West Nile counts; how the dates are worked out.