Frost dates for Shirley Brookhaven Ap, New York
Half of years have their last spring frost by April 18 — but 1 year in 10 still frosts after May 1.
Every other site gives you one date. A frost date is not a date: it is a percentile from 30 years of records at a nearby weather station, and planting to the median means losing the crop in half of years. Both numbers are below, so you can choose the risk yourself.
The odds
Last spring frost
- Frost this late in 1 year in 10
- May 1
- 1 year in 5
- April 26
- 3 years in 10
- April 23
- 2 years in 5
- April 21
- Half of years (the median)
- April 18
First fall freeze
- Freeze this early in 1 year in 10
- October 13
- 1 year in 5
- October 17
- 3 years in 10
- October 21
- 2 years in 5
- October 25
- Half of years (the median)
- October 28
- Growing season
- about 193 days
- Hardiness zones nearby
- 7a, 7b
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, station Shirley Brookhaven Ap (USW00054790), at 40.82, -72.87. These are that station's own records, unshifted. The further your garden is from it, the less exactly they describe your ground — the planner resolves the nearest station to your own ZIP and lowers its confidence with distance, rather than presenting one number as if it were measured in your yard.
Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a hundred metres away does not. No table can know that about your garden. Your own logged frosts eventually can.
ZIP codes nearest this station
11713, 11719, 11727, 11763, 11764, 11778, 11786, 11789, 11792, 11901, 11931, 11933, 11934, 11940, 11941, 11942, 11949, 11950, 11951, 11953, 11955, 11959, 11960, 11961, 11967, 11972, 11973, 11977, 11978, 11980.
What can I plant here, and when? →
Nearby stations
The nearest stations, and how their last-frost dates compare — the frost gradient across your area, which no single station shows.
- Islip Li Macarthur Ap, NY — last frost by April 10
- Bridgeport Sikorsky Mem Ap, CT — last frost by April 5
- New Haven Tweed Ap, CT — last frost by April 17
- Mineola, NY — last frost by April 2
- Yorktown Hts 1W Hcn, NY — last frost by April 25
- Hartford Brainard Fld, CT — last frost by April 17
Other stations in New York.
- Millbrook 3 W, NY — last frost by May 4
- Mohonk Lake Hcn, NY — last frost by April 21
- Hudson Correctional Facility, NY — last frost by April 25
- E Jewett, NY — last frost by May 20
- Liberty 1 Ne, NY — last frost by May 9
- Albany Ap Hcn, NY — last frost by April 27
- Delhi 2 Se, NY — last frost by May 19
- Delanson 2Ne, NY — last frost by May 7