Mosquito season in Desha County, AR: when it starts and ends
Mosquito months in Desha County
In a normal year mosquito season in Desha County, AR starts around February 28 and ends around November 27, about 39 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Desha County, and when
- Start tipping out standing water weekly by February 14.
- Book any yard treatment for late February, ahead of the July peak.
- Repellent can go away after November 27.
- 1 West Nile case since 2016 (last 2017): you should use repellent at dusk May to September, more so if over 60.
Desha County against the rest of AR
Desha County has the 2nd longest season of 75 AR counties, at 272 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 62.9°F.
- Chicot County: February 28 to November 29 (274 days, 1 WNV)
- Miller County: February 28 to November 27 (272 days, 4 WNV)
- Lincoln County: March 2 to November 29 (272 days, 2 WNV)
West Nile in Desha County
From 1999 to 2025, CDC ArboNET counted 5 human West Nile cases in Desha County (3 neuroinvasive) across 5 years. The worst was 2017 with 1; the latest was 2017.
Background: when mosquitoes go away for the winter; how the dates are worked out.