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

Mosquito months in Kiowa County

In a normal year mosquito season in Kiowa County, OK starts around March 21 and ends around November 13, about 34 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 Kiowa County, and when

• Start tipping out standing water weekly by March 7.
• Book any yard treatment for late March, ahead of the July peak.
• Repellent can go away after November 13.
• 1 West Nile case since 2016 (last 2025): you should use repellent at dusk June to September, more so if over 60.

Kiowa County against the rest of OK

Kiowa County has the 29th longest season of 77 OK counties, at 237 days against 271 in Choctaw County and 193 in Cimarron County. Its mean temperature is 61.5°F.

• Muskogee County: March 18 to November 12 (239 days, 6 WNV)
• Pontotoc County: March 19 to November 13 (239 days, 0 WNV)
• Jackson County: March 22 to November 12 (235 days, 7 WNV)
• Roger Mills County: March 22 to November 11 (234 days, 1 WNV)

West Nile in Kiowa County

From 1999 to 2025, CDC ArboNET counted 5 human West Nile cases in Kiowa County (4 neuroinvasive) across 3 years. The worst was 2013 with 3; the latest was 2025.

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