When is the last frost in Mountain City, NV?

Frost is possible in any month at the nearest NOAA station (Wild Horse Rsvr, NV), so there is no reliable average last frost date.

When is the first frost in Mountain City, NV?

Frost is possible in any month at the nearest NOAA station.

Are these frost dates a forecast?

No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.

Frost dates for 89831Mountain City, NV

Frost is possible in any month near Mountain City, based on NOAA 1991-2020 records for the Wild Horse Rsvr, NV station.

Frost is possible in any month. Even summer nights can drop to freezing at this station, so protect tender plants whenever cold nights are forecast.

Frost risk by date

NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
Temperature	Last spring: 90% / 50% / 10% chance	First fall: 10% / 50% / 90% chance	Growing season (50%)	Years with at least one
Light frost (36°F)	—	—	17 days	100%
Frost / freeze (32°F)	—	—	35 days	100%
Hard freeze (28°F)	—	—	63 days	100%

Where these dates come from

ZIP code 89831 is matched to the NOAA station Wild Horse Rsvr, NV, 26.4 km away, at 6,239 ft elevation (629 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Wild Horse Rsvr, NV (used)	6,239 ft	—	—
Jarbidge, NV	6,180 ft	Jun 9	Sep 16
Jarbidge 7 N, NV	6,050 ft	Jun 15	Sep 11
Murphy (Desert) Hot Springs, ID	5,152 ft	—	—

Frost dates near Mountain City

Owyhee, NV 89832 · last —, first —
Jarbidge, NV 89826 · last Jun 15, first Sep 11
Tuscarora, NV 89834 · last Jun 4, first Sep 24
Bruneau, ID 83604 · last May 17, first Sep 29
Jackpot, NV 89825 · last —, first —
Deeth, NV 89823 · last —, first —
Elko, NV 89801 · last Jun 7, first Sep 12
Wells, NV 89835 · last Jun 10, first Sep 16

Frequently asked questions

When is the last frost in Mountain City, NV?: Frost is possible in any month at the nearest NOAA station (Wild Horse Rsvr, NV), so there is no reliable average last frost date.
When is the first frost in Mountain City, NV?: Frost is possible in any month at the nearest NOAA station.
Are these frost dates a forecast?: No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.