Mosquito season in Catron County, NM: when it starts and ends

Mosquito months in Catron County

In a normal year mosquito season in Catron County, NM starts around June 7 and ends around September 29, about 16 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 Catron County, and when

• Start tipping out standing water weekly by May 24.
• Book any yard treatment for early June, ahead of the July peak.
• Repellent can go away after September 29.
• No West Nile cases since 2016, so bites in Catron County are a nuisance; check window screens.

Catron County against the rest of NM

Catron County has the 33rd longest season of 33 NM counties, at 114 days against 268 in Doña Ana County and 114 in Catron County. Its mean temperature is 47.5°F.

• Cibola County: May 20 to October 4 (137 days, 1 WNV)
• Rio Arriba County: May 28 to September 26 (121 days, 6 WNV)

West Nile in Catron County

CDC ArboNET lists no human West Nile cases for Catron County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 3 of those years.

More: how the dates are worked out · when mosquitoes go away for the winter.