Mosquito season in Carson County, TX: when it starts and ends
Mosquito months in Carson County
In a normal year mosquito season in Carson County, TX starts around April 3 and ends around November 6, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Carson County, and when
- Start tipping out standing water weekly by March 20.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 6.
- 2 West Nile cases since 2016 (last 2023): you should use repellent at dusk June to September, more so if over 60.
Carson County against the rest of TX
Carson County has the 235th longest season of 254 TX counties, at 217 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 58°F.
- Potter County: April 2 to November 5 (217 days, 16 WNV)
- Briscoe County: April 3 to November 6 (217 days, 2 WNV)
- Jeff Davis County: April 3 to November 6 (217 days, 0 WNV)
- Gray County: April 4 to November 5 (215 days, 2 WNV)
West Nile in Carson County
From 1999 to 2025, CDC ArboNET counted 11 human West Nile cases in Carson County (6 neuroinvasive) across 8 years. The worst was 2012 with 3; the latest was 2023.
More: how the dates are worked out · when mosquitoes go away for the winter.