Frost dates 2026–2027

Frost dates for Hempstead, New York

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Mineola, 2.0 mi away (close match).

Last spring frostApr 2
First fall frostNov 12
224 frost-free days
Last spring frostApr 21 year in 10 after Apr 16
First fall frostNov 121 year in 10 by Oct 31
Growing season224 daysbetween median 32°F dates
Hardiness zoneZone 7b5 to 10°F average extreme low

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Will it freeze in Hempstead in the next 7 nights?

No overnight lows at or below 32°F are forecast in Hempstead during the next 7 nights in the available NWS frost forecast.

Tonight: forecast low 61°F. Above 36°F.

NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.

No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.

Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.

Frost and freeze probabilities

Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.

These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.

Average first hard freeze in Hempstead

The median first fall hard-freeze date (28°F) is November 25, from NOAA’s 1991–2020 Climate Normals at Mineola. This is the 50% probability date, not a forecast for this year.

TemperatureLast spring date
90% · 50% · 10% chance of a later freeze
First fall date
10% · 50% · 90% chance of an earlier freeze
Season
36°F frost possible Apr 3 · Apr 16 · Apr 30 Oct 16 · Oct 31 · Nov 13 196 days
32°F freeze Mar 18 · Apr 2 · Apr 16 Oct 31 · Nov 12 · Dec 1 224 days
28°F hard freeze Mar 5 · Mar 20 · Apr 4 Nov 9 · Nov 25 · Dec 13 247 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00305377. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Mineola

Average low temperature by month

Months with lows near or below freezing carry frost risk

Where these frost dates come from

The frost dates for Hempstead, NY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Mineola (station USC00305377, elevation 96 ft), 2.0 mi from Hempstead. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.

Frost dates near Hempstead

CityDistanceLast spring frostFirst fall frost
Garden City, NY 1.9 mi Apr 2 Nov 12
Rockville Centre, NY 3.1 mi Apr 7 Nov 8
Mineola, NY 3.1 mi Apr 2 Nov 12
Malverne, NY 3.7 mi Apr 7 Nov 8
New Hyde Park, NY 3.7 mi Apr 2 Nov 12
Williston Park, NY 3.7 mi Apr 2 Nov 12
Freeport, NY 4.3 mi Apr 7 Nov 8
Westbury, NY 4.3 mi Apr 2 Nov 12
Lynbrook, NY 4.3 mi Apr 7 Nov 8
Floral Park, NY 4.3 mi Apr 2 Nov 12

Frequently asked questions

When is the last frost in Hempstead?

On average, the last spring frost (32°F) in Hempstead is around April 2. In about 1 year in 10 it comes after April 16, and in 9 years in 10 it comes after March 18.

When is the first frost in Hempstead?

The first fall frost (32°F) usually arrives around November 12. There’s a 10% chance of a freeze by October 31 and a 90% chance by December 1.

Can it frost in Hempstead after the last frost date?

Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after April 16.

What growing zone is Hempstead?

Hempstead is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 11550. See growing zones in New York.

More: all New York frost dates · New York growing zones · UV index today in Hempstead · frost vs. freeze