Mosquito season in Holmes County, MS: when it starts and ends
Mosquito months in Holmes County
In a normal year mosquito season in Holmes County, MS starts around March 16 and ends around November 12, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Holmes County, and when
- Start tipping out standing water weekly by March 2.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 12.
- 1 West Nile case since 2016 (last 2021): you should use repellent at dusk June to September, more so if over 60.
Holmes County against the rest of MS
Holmes County has the 73rd longest season of 82 MS counties, at 241 days against 333 in Harrison County and 221 in Tishomingo County. Its mean temperature is 61.8°F.
- Yalobusha County: March 16 to November 14 (243 days, 2 WNV)
- Panola County: March 15 to November 12 (242 days, 6 WNV)
- Prentiss County: March 20 to November 13 (238 days, 3 WNV)
- Alcorn County: March 20 to November 11 (236 days, 2 WNV)
West Nile in Holmes County
From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Holmes County (2 neuroinvasive) across 4 years. The worst was 2021 with 1; the latest was 2021.
More: how the dates are worked out · when mosquitoes go away for the winter.