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

Mosquito months in Pearl River County

In a normal year mosquito season in Pearl River County, MS starts around February 24 and ends around January 3, about 45 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 Pearl River County, and when

• Start tipping out standing water weekly by February 10.
• Book any yard treatment for late February, ahead of the July peak.
• Repellent can go away after January 3.
• 3 West Nile cases since 2016 (last 2024): you should use repellent at dusk May to September, more so if over 60.

Pearl River County against the rest of MS

Pearl River County has the 4th longest season of 82 MS counties, at 313 days against 333 in Harrison County and 221 in Tishomingo County. Its mean temperature is 66.2°F.

• Simpson County: February 23 to January 4 (315 days, 1 WNV)
• Stone County: February 27 to January 8 (315 days, 1 WNV)
• Pike County: February 25 to January 1 (310 days, 2 WNV)
• George County: February 13 to December 14 (304 days, 0 WNV)

West Nile in Pearl River County

From 1999 to 2025, CDC ArboNET counted 26 human West Nile cases in Pearl River County (22 neuroinvasive) across 11 years. The worst was 2011 with 7; the latest was 2024.

See how the dates are worked out, and when the season starts across the US.