USDA Hardiness Zone 7a
Frost Dates for 89439 — Verdi, Nevada
NOAA 1991–2020 normals from Verdi 2W, CA (5,429 ft), under a mile southeast.
Updated
In Verdi, the last spring frost (32°F) is around May 9 in half of years and has passed by June 2 in nine years out of ten. The first fall frost comes around October 17, as early as October 1 one year in ten, leaving a typical freeze-free season of 156 days (NOAA, Verdi 2W, CA).
- Last spring frost
- May 9
- First fall frost
- October 17
- Growing season
- 156 days
- Hardiness zone
- 7a
50% probability
50% probability
freeze-free, 50%
0 to 5°F (-17.8 to -15.0°C) coldest night
- First snow
- November 10
- Last snow
- April 27
- Winters with snow
- 100%
- Snow per year
- 98.4"
median, 1991–2020
median, 1991–2020
28 of 28 observed
NOAA normal
Frost risk by date in Verdi
Half of springs at Verdi 2W, CA see their last 32°F night by May 9; only one in ten is past it by April 23, and one in ten still has one after June 2. Planting tender crops after May 19 leaves a 30% risk of a frost on them, after May 26 20%, and after June 2 10%. The 24 days between the even-odds date and the one-in-ten date is wider than at 66% of the 38 Nevada stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.
In fall the first 32°F night comes by October 17 in half of years, as early as October 1 one year in ten, and holds off past November 3 one year in ten. A hard freeze of 28°F follows 14 days later, around October 31; in spring the one-in-ten date for 28°F is May 16, 17 days before the 32°F one. The freeze-free season lasts 156 days in a typical year, shorter than at 55% of the 38 Nevada stations; it reaches 181 days one year in ten and falls short of 125 one year in ten. On average 136 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 22 days longer, to about May 31, and return around October 5. Severe cold of 16°F or below comes in 99% of winters, usually between December 6 and February 22.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 11 | May 17 | May 23 | May 27 | May 31 | Jun 2 | Jun 5 | Jun 10 | Jun 16 |
| 32°F | Apr 23 | Apr 29 | May 2 | May 5 | May 9 | May 14 | May 19 | May 26 | Jun 2 |
| 28°F | Apr 7 | Apr 12 | Apr 17 | Apr 20 | Apr 24 | Apr 28 | May 1 | May 7 | May 16 |
| 24°F | Mar 10 | Mar 20 | Mar 29 | Apr 2 | Apr 6 | Apr 10 | Apr 14 | Apr 18 | Apr 25 |
| 20°F | Feb 16 | Feb 25 | Mar 2 | Mar 8 | Mar 14 | Mar 20 | Mar 27 | Apr 2 | Apr 9 |
| 16°F99% of yrs | Jan 17 | Feb 2 | Feb 11 | Feb 17 | Feb 22 | Feb 28 | Mar 4 | Mar 10 | Mar 20 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 16 | Sep 25 | Sep 29 | Oct 2 | Oct 5 | Oct 8 | Oct 11 | Oct 14 | Oct 19 |
| 32°F | Oct 1 | Oct 5 | Oct 9 | Oct 13 | Oct 17 | Oct 20 | Oct 24 | Oct 29 | Nov 3 |
| 28°F | Oct 13 | Oct 19 | Oct 23 | Oct 27 | Oct 31 | Nov 3 | Nov 6 | Nov 9 | Nov 16 |
| 24°F | Oct 26 | Nov 1 | Nov 5 | Nov 9 | Nov 11 | Nov 16 | Nov 19 | Nov 23 | Nov 29 |
| 20°F | Nov 5 | Nov 12 | Nov 17 | Nov 21 | Nov 24 | Nov 28 | Dec 1 | Dec 5 | Dec 9 |
| 16°F99% of yrs | Nov 13 | Nov 21 | Nov 28 | Dec 2 | Dec 6 | Dec 10 | Dec 14 | Dec 19 | Jan 1 |
Freeze probabilities 1991–2020 at Verdi 2W, CA, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 89439 →Compare Verdi with another place →
Compared with the next station
The nearest other station, Stead, NV, 10 miles northeast of Verdi and 328 feet lower, has a last frost 1 day earlier (May 8), a first frost 5 days earlier (October 12), a season 6 days shorter.
When it snows in Verdi, Nevada
The first measurable snow (0.1 inch or more) in Verdi usually arrives around November 10, and the last of the season around April 27. Those are the middle dates across the winters of 1991–2020 at Boca, CA, 9.9 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 12 days after the last snow.
Planting calendar for 89439
| When | What to do |
|---|---|
| February 28 – March 14 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 14 – March 28 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| April 11 – April 25 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| May 9 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 25 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 3 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 17 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 89439 is under a mile from Verdi 2W, CA, which stands at 5,429 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 89439 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.