Mosquito season in Calhoun County, TX: when it starts and ends
Mosquito months in Calhoun County
In a normal year mosquito season in Calhoun County, TX starts around January 27 and ends around January 4, about 49 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Calhoun County, and when
- Start tipping out standing water weekly by January 13.
- Book any yard treatment for late January, ahead of the August peak.
- Repellent can go away after January 4.
- No West Nile cases since 2016, so bites in Calhoun County are a nuisance; check window screens.
Calhoun County against the rest of TX
Calhoun County has the 17th longest season of 254 TX counties, at 342 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 71.3°F.
- Jackson County: January 21 to January 1 (345 days, 0 WNV)
- Matagorda County: January 22 to January 1 (344 days, 1 WNV)
- Zavala County: January 20 to December 26 (340 days, 2 WNV)
- Chambers County: January 25 to December 31 (340 days, 2 WNV)
West Nile in Calhoun County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Calhoun County (2 neuroinvasive) across 2 years. The worst was 2015 with 1; the latest was 2015.
Background: where mosquitoes never stop; how the dates are worked out.