Mosquito season in Prentiss County, MS: when it starts and ends

Mosquito months in Prentiss County

In a normal year mosquito season in Prentiss County, MS starts around March 20 and ends around November 13, about 34 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Prentiss County, and when

• Start tipping out standing water weekly by March 6.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 13.
• 3 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to September, more so if over 60.

Prentiss County against the rest of MS

Prentiss County has the 74th longest season of 82 MS counties, at 238 days against 333 in Harrison County and 221 in Tishomingo County. Its mean temperature is 60°F.

• Panola County: March 15 to November 12 (242 days, 6 WNV)
• Holmes County: March 16 to November 12 (241 days, 1 WNV)
• Alcorn County: March 20 to November 11 (236 days, 2 WNV)
• Lafayette County: March 21 to November 12 (236 days, 0 WNV)

West Nile in Prentiss County

From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Prentiss County (4 neuroinvasive) across 3 years. The worst was 2023 with 2; the latest was 2025.

See how the dates are worked out, and when mosquitoes go away for the winter.