Mosquito season in Limestone County, TX: when it starts and ends
Mosquito months in Limestone County
In a normal year mosquito season in Limestone County, TX starts around February 28 and ends around December 4, about 40 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Limestone County, and when
- Start tipping out standing water weekly by February 14.
- Book any yard treatment for late February, ahead of the August peak.
- Repellent can go away after December 4.
- 4 West Nile cases since 2016 (last 2025): you should use repellent at dusk May to September, more so if over 60.
Limestone County against the rest of TX
Limestone County has the 88th longest season of 254 TX counties, at 279 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 66.6°F.
- Bastrop County: February 26 to December 3 (280 days, 5 WNV)
- Houston County: February 24 to November 30 (279 days, 0 WNV)
- Rockwall County: February 26 to December 1 (278 days, 5 WNV)
- Tarrant County: February 26 to December 1 (278 days, 236 WNV)
West Nile in Limestone County
From 1999 to 2025, CDC ArboNET counted 9 human West Nile cases in Limestone County (6 neuroinvasive) across 5 years. The worst was 2012 with 4; the latest was 2025.
More: how the dates are worked out · reading the West Nile counts.