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Will it freeze in Lake Grove in the next 7 nights?
No overnight lows at or below 32°F are forecast in Lake Grove during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 60°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
1 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 60°F Above 36°F · Light Rain then Showers And Thunderstorms Likely
- Fri, Nov 6 53°F Above 36°F · Light Rain
- Sat, Nov 7 43°F Above 36°F · Slight Chance Light Rain
- Sun, Nov 8 40°F Above 36°F · Mostly Clear
- Mon, Nov 9 39°F Above 36°F · Mostly Clear
- Tue, Nov 10 40°F Above 36°F · Mostly Clear
- Wed, Nov 11 36°F Frost possible · Partly Cloudy
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 Lake Grove
The median first fall hard-freeze date (28°F) is November 14, from NOAA’s 1991–2020 Climate Normals at Islip Li Macarthur Airport. This is the 50% probability date, not a forecast for this year.
| Temperature | Last 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 11 · Apr 23 · May 7 | Oct 8 · Oct 21 · Nov 4 | 182 days |
| 32°F freeze | Mar 31 · Apr 10 · Apr 25 | Oct 18 · Nov 2 · Nov 15 | 207 days |
| 28°F hard freeze | Mar 14 · Mar 30 · Apr 12 | Nov 1 · Nov 14 · Dec 1 | 230 days |
Average high temperature by month
1991–2020 normals at Islip Li Macarthur Airport
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 Lake Grove, NY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Islip Li Macarthur Airport (station USW00004781, elevation 84 ft), 4.5 mi from Lake Grove. 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 Lake Grove
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Port Jefferson, NY | 6.8 mi | Apr 4 | Nov 7 |
| Patchogue, NY | 8.1 mi | Apr 4 | Nov 11 |
| Northport, NY | 12 mi | Apr 9 | Nov 10 |
| Babylon, NY | 16 mi | Apr 6 | Nov 6 |
| Lindenhurst, NY | 18 mi | Apr 6 | Nov 6 |
| Farmingdale, NY | 19 mi | Apr 6 | Nov 6 |
| Amityville, NY | 21 mi | Apr 6 | Nov 6 |
| Massapequa Park, NY | 21 mi | Apr 3 | Nov 11 |
| Norwalk, CT | 22 mi | Apr 17 | Oct 23 |
| Bridgeport, CT | 23 mi | Apr 5 | Nov 6 |
Frequently asked questions
When is the last frost in Lake Grove?
On average, the last spring frost (32°F) in Lake Grove is around April 10. In about 1 year in 10 it comes after April 25, and in 9 years in 10 it comes after March 31.
When is the first frost in Lake Grove?
The first fall frost (32°F) usually arrives around November 2. There’s a 10% chance of a freeze by October 18 and a 90% chance by November 15.
Can it frost in Lake Grove 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 23.
What growing zone is Lake Grove?
Lake Grove 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 11755. See growing zones in New York.
More: all New York frost dates · New York growing zones · frost vs. freeze