Mosquito season in Starr County, TX: when it starts and ends
Mosquito months in Starr County
In a normal year mosquito season in Starr County, TX starts around January 12 and ends around December 29, about 50 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Starr County, and when
- Start tipping out standing water weekly by December 29.
- Book any yard treatment for mid January, ahead of the August peak.
- Repellent can go away after December 29.
- No West Nile cases since 2016, so bites in Starr County are a nuisance; check window screens.
Starr County against the rest of TX
Starr County has the 11th longest season of 254 TX counties, at 351 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 74.8°F.
- San Patricio County: January 12 to January 1 (354 days, 2 WNV)
- Brazoria County: January 19 to January 7 (353 days, 11 WNV)
- Jim Hogg County: January 15 to December 30 (349 days, 1 WNV)
- Kleberg County: January 14 to December 28 (348 days, 0 WNV)
West Nile in Starr County
From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Starr County (3 neuroinvasive) across 3 years. The worst was 2003 with 2; the latest was 2013.
See how the dates are worked out, and where mosquitoes never stop.