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

Mosquito months in Lauderdale County

In a normal year mosquito season in Lauderdale County, MS starts around February 28 and ends around November 27, about 39 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 Lauderdale 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.
• 2 West Nile cases since 2016 (last 2018): you should use repellent at dusk May to September, more so if over 60.

Lauderdale County against the rest of MS

Lauderdale County has the 27th longest season of 82 MS counties, at 272 days against 333 in Harrison County and 221 in Tishomingo County. Its mean temperature is 65.7°F.

• Rankin County: February 28 to November 28 (273 days, 32 WNV)
• Copiah County: February 28 to November 27 (272 days, 9 WNV)
• Lincoln County: March 1 to November 28 (272 days, 8 WNV)
• Claiborne County: March 1 to November 25 (269 days, 2 WNV)

West Nile in Lauderdale County

From 1999 to 2025, CDC ArboNET counted 25 human West Nile cases in Lauderdale County (12 neuroinvasive) across 9 years. The worst was 2012 with 7; the latest was 2018.

Background: when the season starts across the US; how the dates are worked out.