Mosquito season in Pulaski County, MO: when it starts and ends
Mosquito months in Pulaski County
In a normal year mosquito season in Pulaski County, MO starts around April 1 and ends around October 31, about 30 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Pulaski County, and when
- Start tipping out standing water weekly by March 18.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 31.
- 2 West Nile cases since 2016 (last 2023): you should use repellent at dusk June to August, more so if over 60.
Pulaski County against the rest of MO
Pulaski County has the 51st longest season of 115 MO counties, at 213 days against 242 in Pemiscot County and 187 in Crawford County. Its mean temperature is 56.4°F.
- Cooper County: April 1 to November 1 (213 days, 0 WNV)
- Jackson County: April 1 to October 31 (213 days, 21 WNV)
- Bates County: April 2 to November 1 (213 days, 0 WNV)
- Wright County: April 2 to November 1 (213 days, 0 WNV)
West Nile in Pulaski County
From 1999 to 2025, CDC ArboNET counted 5 human West Nile cases in Pulaski County (5 neuroinvasive) across 5 years. The worst was 2023 with 1; the latest was 2023.
More: how the dates are worked out · when the season starts across the US.