USDA Hardiness Zone 6b
Frost Dates for 14580 — Webster, New York
NOAA 1991–2020 normals from Webster 2 NE, NY (275 ft), 4 miles northeast.
Updated
In Webster, the last spring frost (32°F) is around May 1 in half of years and has passed by May 16 in nine years out of ten. The first fall frost comes around October 20, as early as October 4 one year in ten, leaving a typical freeze-free season of 171 days (NOAA, Webster 2 NE, NY).
- Last spring frost
- May 1
- First fall frost
- October 20
- Growing season
- 171 days
- Hardiness zone
- 6b
50% probability
50% probability
freeze-free, 50%
-5 to 0°F (-20.6 to -17.8°C) coldest night
- First snow
- November 7
- Last snow
- April 12
- Winters with snow
- 100%
- Snow per year
- 85.9"
median, 1991–2020
median, 1991–2020
24 of 24 observed
NOAA normal
Frost risk by date in Webster
Half of springs at Webster 2 NE, NY see their last 32°F night by May 1; only one in ten is past it by April 18, and one in ten still has one after May 16. Planting tender crops after May 7 leaves a 30% risk of a frost on them, after May 10 20%, and after May 16 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 29% of the 173 New York stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 20 in half of years, as early as October 4 one year in ten, and holds off past November 5 one year in ten. A hard freeze of 28°F follows 15 days later, around November 4; in spring the one-in-ten date for 28°F is May 4, 12 days before the 32°F one. The freeze-free season lasts 171 days in a typical year, longer than at 68% of the 173 New York stations; it reaches 192 days one year in ten and falls short of 150 one year in ten. On average 138 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 11 days longer, to about May 12, and return around October 7. Severe cold of 16°F or below comes every winter, usually between December 5 and March 19.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 29 | May 2 | May 6 | May 9 | May 12 | May 15 | May 18 | May 21 | May 25 |
| 32°F | Apr 18 | Apr 23 | Apr 26 | Apr 29 | May 1 | May 4 | May 7 | May 10 | May 16 |
| 28°F | Apr 5 | Apr 9 | Apr 14 | Apr 17 | Apr 19 | Apr 22 | Apr 25 | Apr 30 | May 4 |
| 24°F | Mar 24 | Mar 30 | Apr 1 | Apr 3 | Apr 5 | Apr 8 | Apr 11 | Apr 15 | Apr 20 |
| 20°F | Mar 14 | Mar 18 | Mar 22 | Mar 25 | Mar 29 | Mar 31 | Apr 1 | Apr 3 | Apr 8 |
| 16°F | Mar 6 | Mar 10 | Mar 14 | Mar 16 | Mar 19 | Mar 21 | Mar 24 | Mar 28 | Mar 31 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 25 | Sep 29 | Oct 2 | Oct 4 | Oct 7 | Oct 10 | Oct 12 | Oct 15 | Oct 21 |
| 32°F | Oct 4 | Oct 9 | Oct 14 | Oct 17 | Oct 20 | Oct 23 | Oct 26 | Oct 31 | Nov 5 |
| 28°F | Oct 19 | Oct 25 | Oct 29 | Nov 1 | Nov 4 | Nov 6 | Nov 9 | Nov 12 | Nov 17 |
| 24°F | Nov 1 | Nov 6 | Nov 9 | Nov 12 | Nov 15 | Nov 18 | Nov 21 | Nov 25 | Dec 1 |
| 20°F | Nov 11 | Nov 16 | Nov 20 | Nov 23 | Nov 26 | Nov 30 | Dec 2 | Dec 6 | Dec 12 |
| 16°F | Nov 21 | Nov 26 | Nov 30 | Dec 3 | Dec 5 | Dec 9 | Dec 12 | Dec 17 | Dec 23 |
Freeze probabilities 1991–2020 at Webster 2 NE, NY, 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 14580 →Compare Webster with another place →
Compared with the next station
The nearest other station, Rochester Gtr International Airport, NY, 13 miles southwest of Webster and 258 feet higher, has a last frost 7 days earlier (April 24), a first frost 5 days later (October 25), a season 10 days longer.
When it snows in Webster, New York
The first measurable snow (0.1 inch or more) in Webster usually arrives around November 7, and the last of the season around April 12. Those are the middle dates across the winters of 1991–2020 at Webster 2 NE, NY, 3.6 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 19 days after the last snow.
Planting calendar for 14580
| When | What to do |
|---|---|
| February 20 – March 6 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 6 – March 20 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| April 3 – April 17 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| May 1 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 28 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 6 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 20 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 14580 is 4 miles from Webster 2 NE, NY, which stands at 275 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 14580 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°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.