When is the last frost in Las Vegas, NV?

For ZIP code 89103, the average last spring frost (32°F) is February 4, based on NOAA 1991-2020 climate normals for the Las Vegas Wfo, NV weather station. There is a 1-in-10 chance of a frost after February 27.

When is the first frost in Las Vegas, NV?

The average first fall frost (32°F) is December 5. There is a 1-in-10 chance of frost by November 19, so tender plants are at risk from that point on.

How long is the growing season in 89103?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 302 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 89103Las Vegas, NV

The average last spring frost in Las Vegas is February 4 and the average first fall frost is December 5, giving a typical growing season of about 302 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Feb 4
Average first fall frost: Dec 5
Growing season: 302 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)	Feb 3 · Feb 24 · Mar 12	Nov 9 · Nov 23 · Dec 7	271 days	100%
Frost / freeze (32°F)	Jan 10 · Feb 4 · Feb 27	Nov 19 · Dec 5 · Dec 23	302 days	100%
Hard freeze (28°F)	Dec 17 · Jan 13 · Feb 11	Nov 29 · Dec 20 · Jan 17	339 days	87%

Where these dates come from

ZIP code 89103 is matched to the NOAA station Las Vegas Wfo, NV, 8.1 km away, at 2,275 ft elevation (5 ft lower than the ZIP code's center). Nearby stations for comparison:

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

Frost dates near Las Vegas

Las Vegas, NV 89146 · last Feb 4, first Dec 5
The Lakes, NV 89163 · last Feb 1, first Dec 8
North Las Vegas, NV 89032 · last Jan 24, first Dec 10
Henderson, NV 89014 · last Jan 20, first Dec 15
Blue Diamond, NV 89004 · last Mar 13, first Nov 15
Sloan, NV 89054 · last Feb 4, first Dec 5
Nellis Afb, NV 89191 · last Feb 1, first Dec 8
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 89103, the average last spring frost (32°F) is February 4, based on NOAA 1991-2020 climate normals for the Las Vegas Wfo, NV weather station. There is a 1-in-10 chance of a frost after February 27.
When is the first frost in Las Vegas, NV?: The average first fall frost (32°F) is December 5. There is a 1-in-10 chance of frost by November 19, so tender plants are at risk from that point on.
How long is the growing season in 89103?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 302 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.