Mosquito season in Randolph County, AR: when it starts and ends
Mosquito months in Randolph County
In a normal year mosquito season in Randolph County, AR starts around March 19 and ends around November 9, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Randolph County, and when
- Start tipping out standing water weekly by March 5.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 9.
- No West Nile cases since 2016, so bites in Randolph County are a nuisance; check window screens.
Randolph County against the rest of AR
Randolph County has the 57th longest season of 75 AR counties, at 235 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 58.4°F.
- Lawrence County: March 18 to November 10 (237 days, 2 WNV)
- Stone County: March 19 to November 11 (237 days, 0 WNV)
- Baxter County: March 20 to November 10 (235 days, 0 WNV)
- Marion County: March 20 to November 9 (234 days, 1 WNV)
West Nile in Randolph County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Randolph County (1 neuroinvasive) across 1 year. The worst was 2012 with 1; the latest was 2012.
See how the dates are worked out, and when the season starts across the US.