Mosquito season in Calhoun County, AR: when it starts and ends
Mosquito months in Calhoun County
In a normal year mosquito season in Calhoun County, AR starts around March 6 and ends around November 19, about 37 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Calhoun County, and when
- Start tipping out standing water weekly by February 20.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 19.
- No West Nile cases since 2016, so bites in Calhoun County are a nuisance; check window screens.
Calhoun County against the rest of AR
Calhoun County has the 17th longest season of 75 AR counties, at 258 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 62.4°F.
- Prairie County: March 5 to November 21 (261 days, 0 WNV)
- Lee County: March 7 to November 22 (260 days, 0 WNV)
- Ouachita County: March 6 to November 19 (258 days, 2 WNV)
- Monroe County: March 7 to November 18 (257 days, 0 WNV)
West Nile in Calhoun County
CDC ArboNET lists no human West Nile cases for Calhoun County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 1 of those years.
More: how the dates are worked out · when the season starts across the US.