Mosquito season in Howard County, TX: when it starts and ends
Mosquito months in Howard County
In a normal year mosquito season in Howard County, TX starts around March 6 and ends around November 24, about 38 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Howard County, and when
- Start tipping out standing water weekly by February 20.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 24.
- 1 West Nile case since 2016 (last 2025): you should use repellent at dusk May to September, more so if over 60.
Howard County against the rest of TX
Howard County has the 142nd longest season of 254 TX counties, at 263 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 64.7°F.
- Gillespie County: March 4 to November 22 (263 days, 0 WNV)
- Red River County: March 5 to November 23 (263 days, 2 WNV)
- Wise County: March 6 to November 23 (262 days, 3 WNV)
- Reeves County: March 4 to November 20 (261 days, 1 WNV)
West Nile in Howard County
From 1999 to 2025, CDC ArboNET counted 9 human West Nile cases in Howard County (6 neuroinvasive) across 5 years. The worst was 2013 with 5; the latest was 2025.
More: how the dates are worked out · when the season starts across the US.