Mosquito season in Robertson County, TX: when it starts and ends
Mosquito months in Robertson County
In a normal year mosquito season in Robertson County, TX starts around February 6 and ends around January 9, about 48 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Robertson County, and when
- Start tipping out standing water weekly by January 23.
- Book any yard treatment for early February, ahead of the August peak.
- Repellent can go away after January 9.
- No West Nile cases since 2016, so bites in Robertson County are a nuisance; check window screens.
Robertson County against the rest of TX
Robertson County has the 24th longest season of 254 TX counties, at 337 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 68°F.
- Jefferson County: January 28 to January 1 (338 days, 8 WNV)
- Fort Bend County: January 26 to December 29 (337 days, 15 WNV)
- Comal County: February 10 to January 13 (337 days, 0 WNV)
- Live Oak County: January 23 to December 25 (336 days, 0 WNV)
West Nile in Robertson County
From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Robertson County (2 neuroinvasive) across 1 year. The worst was 2012 with 4; the latest was 2012.
See how the dates are worked out, and where mosquitoes never stop.