Mosquito season in Cross County, AR: when it starts and ends
Mosquito months in Cross County
In a normal year mosquito season in Cross County, AR starts around March 9 and ends around November 20, about 37 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Cross County, and when
- Start tipping out standing water weekly by February 23.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 20.
- No West Nile cases since 2016, so bites in Cross County are a nuisance; check window screens.
Cross County against the rest of AR
Cross County has the 22nd longest season of 75 AR counties, at 256 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 62°F.
- Woodruff County: March 7 to November 19 (256 days, 0 WNV)
- Yell County: March 8 to November 19 (256 days, 0 WNV)
- St. Francis County: March 9 to November 20 (256 days, 0 WNV)
- Howard County: March 10 to November 21 (256 days, 0 WNV)
West Nile in Cross County
CDC ArboNET lists no human West Nile cases for Cross County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 1 of those years.
See how the dates are worked out, and when the season starts across the US.