Mosquito season in Perry County, MS: when it starts and ends
Mosquito months in Perry County
In a normal year mosquito season in Perry County, MS starts around March 2 and ends around November 26, about 38 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Perry County, and when
- Start tipping out standing water weekly by February 16.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 26.
- 2 West Nile cases since 2016 (last 2017): you should use repellent at dusk May to September, more so if over 60.
Perry County against the rest of MS
Perry County has the 33rd longest season of 82 MS counties, at 269 days against 333 in Harrison County and 221 in Tishomingo County. Its mean temperature is 66.3°F.
- Bolivar County: March 2 to November 26 (269 days, 2 WNV)
- Greene County: March 2 to November 26 (269 days, 0 WNV)
- Washington County: March 2 to November 26 (269 days, 4 WNV)
- Lawrence County: February 27 to November 22 (268 days, 2 WNV)
West Nile in Perry County
From 1999 to 2025, CDC ArboNET counted 12 human West Nile cases in Perry County (6 neuroinvasive) across 7 years. The worst was 2012 with 4; the latest was 2017.
More: how the dates are worked out · when mosquitoes go away for the winter.