North Las Vegas, NV Frost Dates: Last Spring and First Fall Frost

Frost leaves North Las Vegas on February 1 and comes back on December 8 when the odds are even, a window of 311 days for tender plants.

Because half of all years do worse than the typical date, the dates that matter for tender plants are the late spring date, February 24, and the early fall date, November 23, each of which one year in ten fails to beat. Among the 100 cities covered here, whose median season is 229 days, North Las Vegas ranks 20th for length, with 82 days more than the middle.

Behind every date on this page is one weather station, N Las Vegas (NOAA USC00265705), 4.1 miles south of North Las Vegas's internal point in the Census Bureau's files and about 1,900 feet up.

When is the last frost in North Las Vegas?

One year in ten has a freeze on or after February 24. In nine years out of ten there is still a freeze on or after January 2, and half of years see one on or after February 1.

The earliest and latest of these dates are 53 days apart, wider than for most of the 100 cities here. A freeze can still come 23 days after the typical date in North Las Vegas, which is why the late date matters more here than in most places.

First fall frost in North Las Vegas

A first freeze on or before November 23 happens one fall in ten. By December 8 half of years have had one, and by December 27 nine years in ten have.

Fall dates in North Las Vegas spread over 34 days, about the same as the middle of the 100 cities on these pages.

The growing season in North Las Vegas

North Las Vegas has far more frost-free days than the middle of these pages, and slow crops benefit most, as the planting dates below show. The gap between a typical year and a short one is 29 days, wider than for most cities on these pages. Count on 282 days, not 311 days, when a crop has little slack.

NOAA counts these days from its own simulations, so they will not equal the number of days between the two typical dates exactly. A night at or below 32°F happens in 99.2% of years at this station, so frost is a yearly event here.

Hard freeze dates for North Las Vegas

Hard freezes are late to arrive in North Las Vegas and early to leave: December 21 in fall, 13 days behind the first frost, and January 4 in spring, 28 days ahead of the last. At the edges, a 28°F night on or after February 8 happens one spring in ten and one by December 1 one fall in ten; the nine-in-ten dates are December 12 and January 24.

Using North Las Vegas's frost dates in the garden

In North Las Vegas the University of New Hampshire Extension count lands like this, measured from the typical last frost on February 1: lettuce from January 4 to January 11, cabbage on January 4, seed potatoes from January 18 to January 25, then peppers on February 15 and beans from February 1. The University of New Hampshire Extension sheet gives peas no frost count at all; sow them as soon as the soil thaws.

The late date comes 23 days after the typical one; choose it for plants you cannot cover.

North Las Vegas's first frost leaves room for only 33 of the 34 fall crops, counting back NC State Extension's days to harvest and University of Georgia Extension's harvest allowance of 18 days; for the other 1 the last planting day falls before July. Of the crops that fit, bulb onions is the slowest: 138 days from planting to the early frost, which makes July 8 its last day.

Worked example: planting broccoli for fall in North Las Vegas

Broccoli transplants need up to 80 days to reach harvest by NC State Extension's table, and University of Georgia Extension adds 18 days to harvest, so 98 days must pass before frost. In North Las Vegas the last planting day is September 1 against the typical first frost on December 8, and August 17 against the early date on November 23.

15 days separate the two last days, enough that in North Las Vegas the earlier one is worth following.

The same crop family has a spring clock too. University of New Hampshire Extension sets cabbage out ahead of the last frost, and from February 1 in North Las Vegas that means on January 4.

The weather station behind these dates

The station is 4.1 miles south of the Census Bureau's internal point for North Las Vegas, near enough to be the city's reference record, though not in the same yard.

Its elevation is about 1,900 feet. Of the 100 stations behind these pages, 15 sit higher and 84 lower. In NOAA's file the record is marked R, meaning representative.

No elevation is available for North Las Vegas in the Census data we saved, so the station's height may or may not match your garden's. Compare nearby stations in the frost dates tool if it does not, and err toward the colder dates.

Nearby cities and their frost dates

Las Vegas, NV is only 10 miles away and shares the region, while the other two cities below are farther out and show how the dates change with distance.

• Las Vegas, NV (10 miles, west): spring frost ends 8 days sooner than in North Las Vegas, and the season runs 12 days longer. Its typical dates are January 24 and December 10, with 323 days frost-free.
• Henderson, NV lies 20 miles south of North Las Vegas. Typical last frost January 20, first frost December 15, 333 days between; spring frost ends 12 days sooner than in North Las Vegas, and the frost-free season is 22 days longer than North Las Vegas's.
• San Bernardino, CA (194 miles, south-west): the last frost is 5 days earlier than in North Las Vegas, and the frost-free season is 18 days longer than North Las Vegas's. Its typical dates are January 27 and December 19, with 329 days frost-free.

Next steps for North Las Vegas gardeners

The frost dates tool opens on this station and lists every probability date, not just the ones above. From there, the spring planting planner and fall planting planner turn the dates into crop lists for North Las Vegas, and the hardiness zone lookup answers what will overwinter.

Looking for another city? The city frost dates index lists every page, grouped by state.

Where these numbers come from

NOAA's U.S. Climate Normals for 1991–2020 (doi:10.25921/4ek7-fk11) supply every frost date here, unchanged from the station's record, and NOAA's documentation defines the probabilities. The Census Bureau's 2024 Gazetteer places North Las Vegas on the map, and its Vintage 2024 estimates, 294,034 people here, decide which cities get a page.

The planting dates apply the count rules in University of New Hampshire Extension, NC State Extension and University of Georgia Extension to this station's dates, with nothing added. See how we source every figure for the checks behind them.

NOAA's dates say how often frost has come, not when it will. Check the forecast before planting and keep a cover on hand.