Mosquito season in Colorado County, TX: when it starts and ends
Mosquito months in Colorado County
In a normal year mosquito season in Colorado County, TX starts around February 25 and ends around December 3, about 40 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Colorado County, and when
- Start tipping out standing water weekly by February 11.
- Book any yard treatment for late February, ahead of the August peak.
- Repellent can go away after December 3.
- 2 West Nile cases since 2016 (last 2020): you should use repellent at dusk May to October, more so if over 60.
Colorado County against the rest of TX
Colorado County has the 83rd longest season of 254 TX counties, at 281 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 69°F.
- Pecos County: February 23 to December 1 (281 days, 1 WNV)
- Panola County: February 24 to December 2 (281 days, 1 WNV)
- McLennan County: February 25 to December 3 (281 days, 17 WNV)
- Morris County: February 24 to December 1 (280 days, 0 WNV)
West Nile in Colorado County
From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Colorado County (3 neuroinvasive) across 4 years. The worst was 2020 with 1; the latest was 2020.
Background: when the season starts across the US; how the dates are worked out.