Mosquito season in Livingston Parish, LA: when it starts and ends
Mosquito months in Livingston Parish
In a normal year mosquito season in Livingston Parish, LA starts around February 21 and ends around December 2, about 41 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Livingston Parish, and when
- Start tipping out standing water weekly by February 7.
- Book any yard treatment for late February, ahead of the August peak.
- Repellent can go away after December 2.
- 42 West Nile cases since 2016: you should wear EPA-registered repellent at dusk May to September, and check LA spray notices.
Livingston Parish against the rest of LA
Livingston Parish has the 45th longest season of 64 LA counties, at 284 days against 358 in Orleans Parish and 247 in Claiborne Parish. Its mean temperature is 67.2°F.
- Catahoula Parish: February 22 to December 5 (286 days, 1 WNV)
- Concordia Parish: February 22 to December 5 (286 days, 1 WNV)
- Tangipahoa Parish: February 21 to December 2 (284 days, 21 WNV)
- De Soto Parish: February 22 to December 1 (282 days, 10 WNV)
West Nile in Livingston Parish
From 1999 to 2025, CDC ArboNET counted 130 human West Nile cases in Livingston Parish (79 neuroinvasive) across 22 years. The worst was 2005 with 21; the latest was 2025.
More: how the dates are worked out · reading the West Nile counts.