Mosquito season in Walker County, AL: when it starts and ends
Mosquito months in Walker County
In a normal year mosquito season in Walker County, AL starts around March 14 and ends around November 15, about 35 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Walker County, and when
- Start tipping out standing water weekly by February 28.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 15.
- 1 West Nile case since 2016 (last 2024): you should use repellent at dusk June to September, more so if over 60.
Walker County against the rest of AL
Walker County has the 50th longest season of 67 AL counties, at 246 days against 330 in Montgomery County and 218 in Marion County. Its mean temperature is 61.3°F.
- DeKalb County: March 14 to November 19 (250 days, 0 WNV)
- Lauderdale County: March 12 to November 14 (247 days, 0 WNV)
- Crenshaw County: March 15 to November 16 (246 days, 0 WNV)
- Franklin County: March 17 to November 16 (244 days, 1 WNV)
West Nile in Walker County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Walker County (1 neuroinvasive) across 1 year. The worst was 2024 with 1; the latest was 2024.
Background: when the season starts across the US; how the dates are worked out.