Mosquito season in Quay County, NM: when it starts and ends
Mosquito months in Quay County
In a normal year mosquito season in Quay County, NM starts around April 4 and ends around November 4, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Quay County, and when
- Start tipping out standing water weekly by March 21.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 4.
- 6 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to September, more so if over 60.
Quay County against the rest of NM
Quay County has the 11th longest season of 33 NM counties, at 214 days against 268 in Doña Ana County and 114 in Catron County. Its mean temperature is 59.3°F.
- Bernalillo County: March 31 to November 1 (215 days, 87 WNV)
- De Baca County: April 3 to November 3 (214 days, 0 WNV)
- Grant County: April 6 to November 4 (212 days, 0 WNV)
- Guadalupe County: April 4 to November 1 (211 days, 1 WNV)
West Nile in Quay County
From 1999 to 2025, CDC ArboNET counted 21 human West Nile cases in Quay County (11 neuroinvasive) across 12 years. The worst was 2003 with 5; the latest was 2025.
See how the dates are worked out, and reading the West Nile counts.