Frost dates for 89415Hawthorne, NV
The average last spring frost in Hawthorne is April 22 and the average first fall frost is October 25, giving a typical growing season of about 185 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 22
- Average first fall frost
- Oct 25
- Growing season
- 185 days
Safer after May 11 (1-in-10 risk)
Possible by Oct 12 (1-in-10 risk)
Last frost typically in 178 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) | Apr 20 · May 5 · May 29 | Oct 4 · Oct 15 · Oct 30 | 160 days | 100% |
| Frost / freeze (32°F) | Apr 6 · Apr 22 · May 11 | Oct 12 · Oct 25 · Nov 8 | 185 days | 100% |
| Hard freeze (28°F) | Mar 10 · Apr 5 · Apr 26 | Oct 20 · Nov 5 · Nov 20 | 210 days | 100% |
Planting calendar for Hawthorne
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 | Mar 22 – May 28 |
| Tomatoes | Transplant outdoors | May 8 – Jul 5 |
| Peppers | Start seeds indoors | Mar 22 – Apr 22 |
| Peppers | Transplant outdoors | May 22 – Jun 22 |
| Eggplant | Start seeds indoors | Apr 8 – May 7 |
| Eggplant | Transplant outdoors | May 22 – Jun 22 |
| Cucumbers | Sow outdoors | May 22 – Jul 15 |
| Summer squash | Sow outdoors | May 8 – Jun 22 |
| Winter squash & pumpkins | Sow outdoors | May 22 – Jun 22 |
| Snap beans | Sow outdoors | May 8 – Aug 7 |
| Sweet corn | Sow outdoors | May 8 – Jul 5 |
| Watermelon & cantaloupe | Sow outdoors | May 22 – Jun 22 |
| Okra | Sow outdoors | May 15 – Jun 7 |
| Peas | Sow outdoors (spring) | Mar 22 – May 7 |
| Potatoes | Plant outdoors (spring) | Mar 22 – May 22 |
| Onions | Start seeds indoors (spring) | Feb 8 – Mar 7 |
| Onions | Transplant outdoors (spring) | Apr 8 – May 7 |
| Broccoli | Start seeds indoors (spring) | Mar 4 – Apr 7 |
| Broccoli | Transplant outdoors (spring) | Apr 8 – May 7 |
| Broccoli | Start seeds indoors (fall) | Jun 25 – Jul 5 |
| Broccoli | Transplant outdoors (fall) | Jul 25 – Aug 5 |
| Cabbage | Start seeds indoors (spring) | Feb 22 – Mar 22 |
| Cabbage | Transplant outdoors (spring) | Mar 22 – Apr 22 |
| Cabbage | Start seeds indoors (fall) | Jun 15 – Jul 15 |
| Cabbage | Transplant outdoors (fall) | Jul 15 – Aug 15 |
| Leaf lettuce | Sow outdoors (spring) | Mar 22 – Jun 7 |
| Leaf lettuce | Sow outdoors (fall) | Jul 15 – Aug 31 |
| Spinach | Sow outdoors (spring) | Mar 15 – Apr 28 |
| Spinach | Sow outdoors (fall) | Aug 1 – Sep 5 |
| Radishes | Sow outdoors (spring) | Mar 22 – May 12 |
| Radishes | Sow outdoors (fall) | Jul 15 – Sep 15 |
| Kale | Sow outdoors (spring) | Apr 8 – Apr 28 |
| Kale | Sow outdoors (fall) | Jul 8 – Aug 15 |
| Carrots | Sow outdoors (spring) | Apr 22 – Jun 7 |
| Carrots | Sow outdoors (fall) | Jun 15 – Jul 31 |
| Garlic | Plant outdoors (fall) | Oct 15 – Nov 15 |
Where these dates come from
ZIP code 89415 is matched to the NOAA station Hawthorne, NV, 2.8 km away, at 4,400 ft elevation (158 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Hawthorne, NV (used) | 4,400 ft | Apr 22 | Oct 25 |
| Bodie California St Historic P, CA | 8,370 ft | — | — |
| Mina, NV | 4,580 ft | Apr 14 | Oct 24 |
| Bridgeport, CA | 6,470 ft | — | — |
Frost dates near Hawthorne
- Luning, NV 89420 · last Apr 14, first Oct 24
- Schurz, NV 89427 · last May 31, first Sep 17
- Mina, NV 89422 · last Apr 14, first Oct 24
- Bridgeport, CA 93517 · last —, first —
- Smith, NV 89430 · last May 23, first Sep 28
- Yerington, NV 89447 · last Apr 29, first Oct 15
- Wellington, NV 89444 · last May 23, first Sep 28
- Benton, CA 93512 · last May 23, first Oct 9
Frequently asked questions
- When is the last frost in Hawthorne, NV?
- For ZIP code 89415, the average last spring frost (32°F) is April 22, based on NOAA 1991-2020 climate normals for the Hawthorne, NV weather station. There is a 1-in-10 chance of a frost after May 11.
- When is the first frost in Hawthorne, NV?
- The average first fall frost (32°F) is October 25. There is a 1-in-10 chance of frost by October 12, so tender plants are at risk from that point on.
- How long is the growing season in 89415?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 185 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.