Mosquito season in Zapata County, TX: when it starts and ends
Mosquito months in Zapata County
In a normal year mosquito season in Zapata County, TX starts around January 5 and ends around January 1, about 52 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Zapata County, and when
- Start tipping out standing water weekly by December 22.
- Book any yard treatment for early January, ahead of the August peak.
- Repellent can go away after January 1.
- No West Nile cases since 2016, so bites in Zapata County are a nuisance; check window screens.
Zapata County against the rest of TX
Zapata County has the 5th longest season of 254 TX counties, at 361 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 74.6°F.
- Hidalgo County: January 3 to January 1 (363 days, 25 WNV)
- Willacy County: January 7 to January 5 (363 days, 0 WNV)
- Aransas County: January 8 to January 4 (361 days, 0 WNV)
- Jim Wells County: January 15 to January 6 (356 days, 1 WNV)
West Nile in Zapata County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Zapata County (0 neuroinvasive) across 1 year. The worst was 2003 with 2; the latest was 2003.
More: how the dates are worked out · where mosquitoes never stop.