USDA Hardiness Zone 5b
Frost Dates for 14823 — Canisteo, New York
NOAA 1991–2020 normals from Hornell Almond Dam, NY (1,325 ft), 9 miles northwest.
Updated
In Canisteo, the last spring frost (32°F) is around May 11 in half of years and has passed by May 26 in nine years out of ten. The first fall frost comes around October 8, as early as September 26 one year in ten, leaving a typical freeze-free season of 150 days (NOAA, Hornell Almond Dam, NY).
- Last spring frost
- May 11
- First fall frost
- October 8
- Growing season
- 150 days
- Hardiness zone
- 5b
50% probability
50% probability
freeze-free, 50%
-15 to -10°F (-26.1 to -23.3°C) coldest night
- First snow
- November 14
- Last snow
- April 6
- Winters with snow
- 100%
- Snow per year
- 62.1"
median, 1991–2020
median, 1991–2020
30 of 30 observed
NOAA normal
Frost risk by date in Canisteo
Half of springs at Hornell Almond Dam, NY see their last 32°F night by May 11; only one in ten is past it by April 28, and one in ten still has one after May 26. Planting tender crops after May 17 leaves a 30% risk of a frost on them, after May 21 20%, and after May 26 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 8 in half of years, as early as September 26 one year in ten, and holds off past October 25 one year in ten. A hard freeze of 28°F follows 15 days later, around October 23; in spring the one-in-ten date for 28°F is May 16, 10 days before the 32°F one. The freeze-free season lasts 150 days in a typical year, shorter than at 75% of the 173 New York stations; it reaches 170 days one year in ten and falls short of 129 one year in ten. On average 165 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 13 days longer, to about May 24, and return around September 28. Severe cold of 16°F or below comes every winter, usually between November 28 and March 29.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 7 | May 13 | May 17 | May 21 | May 24 | May 27 | May 30 | Jun 1 | Jun 6 |
| 32°F | Apr 28 | May 1 | May 5 | May 8 | May 11 | May 14 | May 17 | May 21 | May 26 |
| 28°F | Apr 18 | Apr 22 | Apr 26 | Apr 29 | May 1 | May 3 | May 7 | May 11 | May 16 |
| 24°F | Apr 4 | Apr 9 | Apr 13 | Apr 16 | Apr 19 | Apr 22 | Apr 25 | Apr 30 | May 4 |
| 20°F | Mar 23 | Mar 29 | Apr 1 | Apr 3 | Apr 6 | Apr 8 | Apr 12 | Apr 16 | Apr 20 |
| 16°F | Mar 14 | Mar 18 | Mar 22 | Mar 26 | Mar 29 | Mar 31 | Apr 2 | Apr 4 | Apr 9 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 13 | Sep 18 | Sep 22 | Sep 25 | Sep 28 | Oct 1 | Oct 2 | Oct 5 | Oct 9 |
| 32°F | Sep 26 | Oct 1 | Oct 3 | Oct 5 | Oct 8 | Oct 12 | Oct 15 | Oct 20 | Oct 25 |
| 28°F | Oct 5 | Oct 11 | Oct 16 | Oct 20 | Oct 23 | Oct 27 | Oct 31 | Nov 3 | Nov 7 |
| 24°F | Oct 21 | Oct 27 | Oct 31 | Nov 2 | Nov 5 | Nov 7 | Nov 11 | Nov 14 | Nov 20 |
| 20°F | Nov 1 | Nov 7 | Nov 11 | Nov 14 | Nov 17 | Nov 20 | Nov 24 | Nov 28 | Dec 3 |
| 16°F | Nov 12 | Nov 17 | Nov 21 | Nov 24 | Nov 28 | Dec 1 | Dec 4 | Dec 7 | Dec 15 |
Freeze probabilities 1991–2020 at Hornell Almond Dam, 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 14823 →Compare Canisteo with another place →
Weather by month in Canisteo
July is the warmest month at Hornell Almond Dam, NY, averaging 81°F by day and 54°F at night; January is the coldest at 30°F and 12°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 81% of years.
Warmth for growing adds up to 2,059 growing degree days a year (base 50°F), fewer than at 87% of the 173 New York stations. 31% of them (645) have built up by the end of June, and July adds the most, 547. Precipitation totals 38.5 inches a year, most in June (4.1") and least in February (1.9"); May to September bring 50% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 30 | 12 | 2.4 | 100% | 29 | 0 |
| Feb | 33 | 13 | 1.9 | 100% | 27 | 1 |
| Mar | 41 | 20 | 2.6 | 100% | 27 | 8 |
| Apr | 55 | 30 | 3.3 | 100% | 20 | 36 |
| May | 68 | 41 | 3.4 | 81% | 4 | 199 |
| Jun | 76 | 50 | 4.1 | 0% | 0 | 401 |
| Jul | 81 | 54 | 4.0 | 0% | 0 | 547 |
| Aug | 79 | 54 | 3.9 | 0% | 0 | 498 |
| Sep | 71 | 47 | 3.9 | 19% | 1 | 286 |
| Oct | 58 | 37 | 3.6 | 96% | 8 | 75 |
| Nov | 46 | 28 | 2.7 | 100% | 23 | 9 |
| Dec | 35 | 20 | 2.7 | 100% | 28 | 0 |
Monthly normals 1991–2020 at Hornell Almond Dam, NY (1,325 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Alfred, NY, 10 miles west of Canisteo and 599 feet higher, has a last frost 7 days later (May 18), a first frost 7 days earlier (October 1), a season 15 days shorter.
When it snows in Canisteo, New York
The first measurable snow (0.1 inch or more) in Canisteo usually arrives around November 14, and the last of the season around April 6. Those are the middle dates across the winters of 1991–2020 at Hornell Almond Dam, NY, 9.2 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 35 days after the last snow.
Planting calendar for 14823
| When | What to do |
|---|---|
| March 2 – March 16 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 16 – March 30 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| April 13 – April 27 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| May 11 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 16 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by September 24 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 8 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 14823 is 9 miles from Hornell Almond Dam, NY, which stands at 1,325 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 14843 (Hornell). The 2023 USDA Plant Hardiness Zone Map lists ZIP 14823 in zone 5b, the band where the coldest night of the year averaged -15 to -10°F (-26.1 to -23.3°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.