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

Mosquito months in Roger Mills County

In a normal year mosquito season in Roger Mills County, OK starts around March 22 and ends around November 11, about 33 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 Roger Mills County, and when

• Start tipping out standing water weekly by March 8.
• Book any yard treatment for late March, ahead of the July peak.
• Repellent can go away after November 11.
• 1 West Nile case since 2016 (last 2018): you should use repellent at dusk June to September, more so if over 60.

Roger Mills County against the rest of OK

Roger Mills County has the 31st longest season of 77 OK counties, at 234 days against 271 in Choctaw County and 193 in Cimarron County. Its mean temperature is 59.7°F.

• Kiowa County: March 21 to November 13 (237 days, 1 WNV)
• Jackson County: March 22 to November 12 (235 days, 7 WNV)
• Cleveland County: March 23 to November 12 (234 days, 27 WNV)
• Logan County: March 23 to November 11 (233 days, 1 WNV)

West Nile in Roger Mills County

From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Roger Mills County (0 neuroinvasive) across 2 years. The worst was 2018 with 1; the latest was 2018.

See how the dates are worked out, and when the season starts across the US.