When is the last frost in Las Vegas, NV?

For ZIP code 89128, the average last spring frost (32°F) is January 24, based on NOAA 1991-2020 climate normals for the Las Vegas Air Terminal, NV weather station. There is a 1-in-10 chance of a frost after February 19.

When is the first frost in Las Vegas, NV?

The average first fall frost (32°F) is December 10. There is a 1-in-10 chance of frost by November 24, so tender plants are at risk from that point on.

How long is the growing season in 89128?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 323 days long.

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 89128Las Vegas, NV

The average last spring frost in Las Vegas is January 24 and the average first fall frost is December 10, giving a typical growing season of about 323 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 24
Average first fall frost: Dec 10
Growing season: 323 days

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)	Jan 23 · Feb 16 · Mar 9	Nov 15 · Nov 29 · Dec 14	284 days	100%
Frost / freeze (32°F)	Dec 27 · Jan 24 · Feb 19	Nov 24 · Dec 10 · Dec 29	323 days	97%
Hard freeze (28°F)	Dec 10 · Jan 2 · Feb 3	Dec 4 · Dec 25 · Jan 22	360 days	58%

Where these dates come from

ZIP code 89128 is matched to the NOAA station Las Vegas Air Terminal, NV, 6.4 km away, at 2,203 ft elevation (244 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Las Vegas Air Terminal, NV (used)	2,203 ft	Jan 24	Dec 10
N Las Vegas, NV	1,898 ft	Feb 1	Dec 8
Las Vegas Mccarran Ap, NV	2,131 ft	Jan 20	Dec 15
Las Vegas Wfo, NV	2,275 ft	Feb 4	Dec 5

Frost dates near Las Vegas

Las Vegas, NV 89125 · last Jan 24, first Dec 10
North Las Vegas, NV 89032 · last Jan 24, first Dec 10
The Lakes, NV 89163 · last Feb 1, first Dec 8
Blue Diamond, NV 89004 · last Mar 13, first Nov 15
Nellis Afb, NV 89191 · last Feb 1, first Dec 8
Henderson, NV 89014 · last Jan 20, first Dec 15
Sloan, NV 89054 · last Feb 4, first Dec 5
Coyote Springs, NV 89037 · last Feb 1, first Dec 8

Frequently asked questions

When is the last frost in Las Vegas, NV?: For ZIP code 89128, the average last spring frost (32°F) is January 24, based on NOAA 1991-2020 climate normals for the Las Vegas Air Terminal, NV weather station. There is a 1-in-10 chance of a frost after February 19.
When is the first frost in Las Vegas, NV?: The average first fall frost (32°F) is December 10. There is a 1-in-10 chance of frost by November 24, so tender plants are at risk from that point on.
How long is the growing season in 89128?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 323 days long.
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.