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

Mosquito months in Curry County

In a normal year mosquito season in Curry County, NM starts around April 8 and ends around November 2, about 30 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 Curry County, and when

• Start tipping out standing water weekly by March 25.
• Book any yard treatment for early April, ahead of the July peak.
• Repellent can go away after November 2.
• 3 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to August, more so if over 60.

Curry County against the rest of NM

Curry County has the 15th longest season of 33 NM counties, at 208 days against 268 in Doña Ana County and 114 in Catron County. Its mean temperature is 57.3°F.

• Guadalupe County: April 4 to November 1 (211 days, 1 WNV)
• Roosevelt County: April 7 to November 1 (208 days, 3 WNV)
• Valencia County: April 8 to October 31 (206 days, 20 WNV)
• Otero County: April 20 to October 30 (193 days, 3 WNV)

West Nile in Curry County

From 1999 to 2025, CDC ArboNET counted 47 human West Nile cases in Curry County (19 neuroinvasive) across 11 years. The worst was 2003 with 25; the latest was 2025.

See how the dates are worked out, and when mosquitoes go away for the winter.