Frost dates for 89161Las Vegas, NV
The average last spring frost in Las Vegas is March 13 and the average first fall frost is November 15, giving a typical growing season of about 244 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 13
- Average first fall frost
- Nov 15
- Growing season
- 244 days
Safer after Apr 11 (1-in-10 risk)
Possible by Oct 31 (1-in-10 risk)
First frost typically in 19 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.
| 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) | Mar 11 · Apr 6 · Apr 25 | Oct 22 · Nov 5 · Nov 19 | 213 days | 100% |
| Frost / freeze (32°F) | Feb 20 · Mar 13 · Apr 11 | Oct 31 · Nov 15 · Nov 30 | 244 days | 100% |
| Hard freeze (28°F) | Jan 29 · Feb 21 · Mar 19 | Nov 9 · Nov 27 · Dec 15 | 278 days | 100% |
Planting calendar for Las Vegas
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Feb 10 – Apr 18 |
| Tomatoes | Transplant outdoors | Mar 29 – Jul 26 |
| Peppers | Start seeds indoors | Feb 10 – Mar 13 |
| Peppers | Transplant outdoors | Apr 12 – May 13 |
| Eggplant | Start seeds indoors | Feb 27 – Mar 28 |
| Eggplant | Transplant outdoors | Apr 12 – May 13 |
| Cucumbers | Sow outdoors | Apr 12 – Aug 5 |
| Summer squash | Sow outdoors | Mar 29 – May 13 |
| Winter squash & pumpkins | Sow outdoors | Apr 12 – May 13 |
| Snap beans | Sow outdoors | Mar 29 – Aug 28 |
| Sweet corn | Sow outdoors | Mar 29 – Jul 26 |
| Watermelon & cantaloupe | Sow outdoors | Apr 12 – May 13 |
| Okra | Sow outdoors | Apr 5 – Apr 28 |
| Peas | Sow outdoors (spring) | Feb 10 – Mar 28 |
| Potatoes | Plant outdoors (spring) | Feb 10 – Apr 12 |
| Onions | Start seeds indoors (spring) | Dec 30 – Jan 26 |
| Onions | Transplant outdoors (spring) | Feb 27 – Mar 28 |
| Broccoli | Start seeds indoors (spring) | Jan 23 – Feb 26 |
| Broccoli | Transplant outdoors (spring) | Feb 27 – Mar 28 |
| Broccoli | Start seeds indoors (fall) | Jul 16 – Jul 26 |
| Broccoli | Transplant outdoors (fall) | Aug 15 – Aug 26 |
| Cabbage | Start seeds indoors (spring) | Jan 13 – Feb 10 |
| Cabbage | Transplant outdoors (spring) | Feb 10 – Mar 13 |
| Cabbage | Start seeds indoors (fall) | Jul 6 – Aug 5 |
| Cabbage | Transplant outdoors (fall) | Aug 5 – Sep 5 |
| Leaf lettuce | Sow outdoors (spring) | Feb 10 – Apr 28 |
| Leaf lettuce | Sow outdoors (fall) | Aug 5 – Sep 21 |
| Spinach | Sow outdoors (spring) | Feb 3 – Mar 19 |
| Spinach | Sow outdoors (fall) | Aug 22 – Sep 26 |
| Radishes | Sow outdoors (spring) | Feb 10 – Apr 2 |
| Radishes | Sow outdoors (fall) | Aug 5 – Oct 6 |
| Kale | Sow outdoors (spring) | Feb 27 – Mar 19 |
| Kale | Sow outdoors (fall) | Jul 29 – Sep 5 |
| Carrots | Sow outdoors (spring) | Mar 13 – Apr 28 |
| Carrots | Sow outdoors (fall) | Jul 6 – Aug 21 |
| Garlic | Plant outdoors (fall) | Nov 5 – Dec 6 |
Where these dates come from
ZIP code 89161 is matched to the NOAA station Red Rock Canyon - Spg Mt Rch S, NV, 11.5 km away, at 3,780 ft elevation (479 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Red Rock Canyon - Spg Mt Rch S, NV (used) | 3,780 ft | Mar 13 | Nov 15 |
| Las Vegas Wfo, NV | 2,275 ft | Feb 4 | Dec 5 |
| Goodsprings, NV | 3,716 ft | Mar 17 | Nov 20 |
| Las Vegas Mccarran Ap, NV | 2,131 ft | Jan 20 | Dec 15 |
Frost dates near Las Vegas
- Blue Diamond, NV 89004 · last Mar 13, first Nov 15
- Las Vegas, NV 89178 · last Feb 4, first Dec 5
- Sloan, NV 89054 · last Feb 4, first Dec 5
- Henderson, NV 89044 · last Feb 4, first Dec 5
- Jean, NV 89026 · 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
- Boulder City, NV 89006 · last Feb 4, first Dec 5
Frequently asked questions
- When is the last frost in Las Vegas, NV?
- For ZIP code 89161, the average last spring frost (32°F) is March 13, based on NOAA 1991-2020 climate normals for the Red Rock Canyon - Spg Mt Rch S, NV weather station. There is a 1-in-10 chance of a frost after April 11.
- When is the first frost in Las Vegas, NV?
- The average first fall frost (32°F) is November 15. There is a 1-in-10 chance of frost by October 31, so tender plants are at risk from that point on.
- How long is the growing season in 89161?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 244 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.