Mosquito season in Latimer County, OK: when it starts and ends

Mosquito months in Latimer County

In a normal year mosquito season in Latimer County, OK starts around March 18 and ends around November 15, about 35 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Latimer County, and when

• Start tipping out standing water weekly by March 4.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 15.
• No West Nile cases since 2016, so bites in Latimer County are a nuisance; check window screens.

Latimer County against the rest of OK

Latimer County has the 22nd longest season of 77 OK counties, at 242 days against 271 in Choctaw County and 193 in Cimarron County. Its mean temperature is 61.8°F.

• Love County: March 15 to November 12 (242 days, 0 WNV)
• Adair County: March 17 to November 14 (242 days, 0 WNV)
• Oklahoma County: March 17 to November 13 (241 days, 64 WNV)
• Tulsa County: March 17 to November 13 (241 days, 47 WNV)

West Nile in Latimer County

CDC ArboNET lists no human West Nile cases for Latimer County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 5 of those years.

Background: when mosquitoes go away for the winter; how the dates are worked out.