USDA Hardiness Zone 5b
Frost Dates for 13029 — Brewerton, New York
NOAA 1991–2020 normals from Brewerton Lock 23, NY (377 ft), 3 miles west.
Updated
In Brewerton, the last spring frost (32°F) is around May 4 in half of years and has passed by May 19 in nine years out of ten. The first fall frost comes around October 11, as early as September 27 one year in ten, leaving a typical freeze-free season of 158 days (NOAA, Brewerton Lock 23, NY).
- Last spring frost
- May 4
- First fall frost
- October 11
- Growing season
- 158 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 8
- Last snow
- April 6
- Winters with snow
- 100%
- Snow per year
- —
median, 1991–2020
median, 1991–2020
23 of 23 observed
NOAA normal
Frost risk by date in Brewerton
Half of springs at Brewerton Lock 23, NY see their last 32°F night by May 4; only one in ten is past it by April 22, and one in ten still has one after May 19. Planting tender crops after May 10 leaves a 30% risk of a frost on them, after May 14 20%, and after May 19 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 11 in half of years, as early as September 27 one year in ten, and holds off past October 29 one year in ten. A hard freeze of 28°F follows 18 days later, around October 29; in spring the one-in-ten date for 28°F is May 8, 11 days before the 32°F one. The freeze-free season lasts 158 days in a typical year, shorter than at 56% of the 173 New York stations; it reaches 180 days one year in ten and falls short of 137 one year in ten. On average 151 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 12 days longer, to about May 16, and return around September 29. Severe cold of 16°F or below comes every winter, usually between November 30 and March 29.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 1 | May 6 | May 10 | May 13 | May 16 | May 19 | May 23 | May 27 | May 31 |
| 32°F | Apr 22 | Apr 26 | Apr 29 | May 1 | May 4 | May 6 | May 10 | May 14 | May 19 |
| 28°F | Apr 11 | Apr 16 | Apr 19 | Apr 21 | Apr 24 | Apr 26 | Apr 29 | May 2 | May 8 |
| 24°F | Apr 2 | Apr 4 | Apr 7 | Apr 10 | Apr 12 | Apr 15 | Apr 18 | Apr 20 | Apr 24 |
| 20°F | Mar 21 | Mar 27 | Mar 31 | Apr 2 | Apr 3 | Apr 5 | Apr 8 | Apr 12 | Apr 16 |
| 16°F | Mar 14 | Mar 18 | Mar 21 | Mar 24 | Mar 29 | Mar 31 | Apr 1 | Apr 4 | Apr 7 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 18 | Sep 22 | Sep 25 | Sep 27 | Sep 29 | Oct 1 | Oct 5 | Oct 8 | Oct 14 |
| 32°F | Sep 27 | Oct 1 | Oct 4 | Oct 7 | Oct 11 | Oct 15 | Oct 19 | Oct 23 | Oct 29 |
| 28°F | Oct 9 | Oct 16 | Oct 21 | Oct 25 | Oct 29 | Nov 1 | Nov 2 | Nov 6 | Nov 10 |
| 24°F | Oct 27 | Nov 1 | Nov 3 | Nov 6 | Nov 9 | Nov 12 | Nov 15 | Nov 18 | Nov 23 |
| 20°F | Nov 6 | Nov 12 | Nov 15 | Nov 17 | Nov 19 | Nov 22 | Nov 25 | Nov 29 | Dec 4 |
| 16°F | Nov 15 | Nov 20 | Nov 24 | Nov 27 | Nov 30 | Dec 2 | Dec 5 | Dec 8 | Dec 14 |
Freeze probabilities 1991–2020 at Brewerton Lock 23, 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 13029 →Compare Brewerton with another place →
Compared with the next station
The nearest other station, Syracuse Hancock International Airport, NY, 8 miles south of Brewerton, has a last frost 5 days earlier (April 29), a first frost 8 days later (October 19), a season 15 days longer.
When it snows in Brewerton, New York
The first measurable snow (0.1 inch or more) in Brewerton usually arrives around November 8, and the last of the season around April 6. Those are the middle dates across the winters of 1991–2020 at Brewerton Lock 23, NY, 3 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 28 days after the last snow.
Planting calendar for 13029
| When | What to do |
|---|---|
| February 23 – March 9 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 9 – March 23 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| April 6 – April 20 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| May 4 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 19 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by September 27 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 11 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 13029 is 3 miles from Brewerton Lock 23, NY, which stands at 377 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 8 other ZIP codes share the station; its figures are presented in full for 13027 (Baldwinsville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 13029 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.