Mosquito season in Kent County, RI: when it starts and ends
Mosquito months in Kent County
In a normal year mosquito season in Kent County, RI starts around April 19 and ends around October 22, about 26 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Kent County, and when
- Start tipping out standing water weekly by April 5.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 22.
- No West Nile cases since 2016, so bites in Kent County are a nuisance; check window screens.
Kent County against the rest of RI
Kent County has the 3rd longest season of 5 RI counties, at 185 days against 195 in Bristol County and 181 in Washington County. Its mean temperature is 50.5°F.
- Bristol County: April 17 to October 30 (195 days, 0 WNV)
- Newport County: April 23 to October 31 (192 days, 4 WNV)
- Providence County: April 20 to October 22 (185 days, 12 WNV)
- Washington County: April 25 to October 23 (181 days, 1 WNV)
West Nile in Kent County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Kent County (0 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.
Background: when the season starts across the US; how the dates are worked out.