Mosquito season in Crosby County, TX: when it starts and ends
Mosquito months in Crosby County
In a normal year mosquito season in Crosby County, TX starts around March 22 and ends around November 14, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Crosby County, and when
- Start tipping out standing water weekly by March 8.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 14.
- 3 West Nile cases since 2016 (last 2024): you should use repellent at dusk June to September, more so if over 60.
Crosby County against the rest of TX
Crosby County has the 215th longest season of 254 TX counties, at 237 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 60.5°F.
- Concho County: March 20 to November 13 (238 days, 0 WNV)
- Glasscock County: March 21 to November 14 (238 days, 1 WNV)
- Stephens County: March 21 to November 11 (235 days, 1 WNV)
- Lubbock County: March 22 to November 11 (234 days, 52 WNV)
West Nile in Crosby County
From 1999 to 2025, CDC ArboNET counted 23 human West Nile cases in Crosby County (11 neuroinvasive) across 9 years. The worst was 2010 with 5; the latest was 2024.
More: how the dates are worked out · when mosquitoes go away for the winter.