Frost dates for Red Rock Canyon - Spg Mt Rch S, NV
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
March 13
typical year
Safe to plant
April 11
frost is over in 9 of 10 years
First fall frost
November 15
typical year
Growing season
244 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Feb 13 – 27 | – |
| Spinach | – | Jan 30 – Feb 20 | Sep 20 – Oct 4 |
| Lettuce | – | Feb 13 – Mar 6 | Sep 20 – Oct 4 |
| Radishes | – | Feb 13 – Mar 27 | Oct 4 – 18 |
| Onions | – | Feb 13 – 27 | – |
| Potatoes | – | Feb 20 – Mar 6 | – |
| Carrots | – | Feb 20 – Mar 13 | Aug 23 – Sep 6 |
| Beets | – | Feb 13 – 27 | Sep 6 – 20 |
| Kale | Jan 2 – 16 | Feb 13 – 27 | Sep 6 – 20 |
| Broccoli | Jan 2 – 16 | Feb 27 – Mar 13 | Sep 6 – 20 |
| Cabbage | Dec 19 – Jan 2 | Feb 13 – 27 | Sep 6 – 20 |
| Garlic | – | – | Oct 4 – 25 |
| Warm-season crops | |||
| Tomatoes | Feb 14 – 28 | Apr 11 – 25 | – |
| Peppers | Feb 7 – 21 | Apr 18 – May 2 | – |
| Cucumbers | – | Apr 11 – May 2 | – |
| Zucchini | – | Apr 11 – May 9 | – |
| Pumpkins | – | Apr 11 – May 2 | – |
| Green beans | – | Apr 11 – Sep 6 | – |
| Sweet corn | – | Apr 11 – May 9 | – |
| Basil | Mar 7 – 21 | Apr 18 – 25 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | April 11 | March 13 | February 20 |
| Fall frost before | October 31 | November 15 | November 30 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around February 21 (March 19 in a late year), and the first one in fall around November 27.
Where these dates come from
NOAA weather station RED ROCK CANYON - SPG MT RCH S, NV US (USC00266691), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 5 miles:
89004, 89135, 89161
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.