Mosquito season in Pulaski County, AR: when it starts and ends

Mosquito months in Pulaski County

In a normal year mosquito season in Pulaski County, AR starts around March 8 and ends around November 18, about 36 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 Pulaski County, and when

• Start tipping out standing water weekly by February 22.
• Book any yard treatment for early March, ahead of the July peak.
• Repellent can go away after November 18.
• 22 West Nile cases since 2016: you should wear EPA-registered repellent at dusk June to September, and check AR spray notices.

Pulaski County against the rest of AR

Pulaski County has the 27th longest season of 75 AR counties, at 255 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 61.4°F.

• Lonoke County: March 8 to November 18 (255 days, 2 WNV)
• Perry County: March 8 to November 18 (255 days, 1 WNV)
• Little River County: March 11 to November 21 (255 days, 1 WNV)
• Saline County: March 9 to November 18 (254 days, 6 WNV)

West Nile in Pulaski County

From 1999 to 2025, CDC ArboNET counted 71 human West Nile cases in Pulaski County (60 neuroinvasive) across 16 years. The worst was 2012 with 14; the latest was 2025.

Background: reading the West Nile counts; how the dates are worked out.