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Will it freeze in Jamestown in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tue, Nov 10: 32°F (Tue, Nov 10, 6:00 PM EST to Wed, Nov 11, 6:00 AM EST).
Tonight: forecast low 47°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
6 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 47°F Above 36°F · Mostly Cloudy
- Fri, Nov 6 36°F Frost possible · Rain Showers
- Sat, Nov 7 34°F Frost possible · Rain Showers
- Sun, Nov 8 33°F Frost possible · Chance Rain Showers
- Mon, Nov 9 34°F Frost possible · Partly Cloudy
- Tue, Nov 10 32°F Freeze · Slight Chance Rain Showers
- Wed, Nov 11 29°F Freeze · Mostly 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 Jamestown
The median first fall hard-freeze date (28°F) is October 28, from NOAA’s 1991–2020 Climate Normals at Jamestown 4 Ene. 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 | May 4 · May 20 · Jun 2 | Sep 19 · Oct 1 · Oct 14 | 135 days |
| 32°F freeze | Apr 22 · May 8 · May 25 | Oct 1 · Oct 13 · Oct 30 | 158 days |
| 28°F hard freeze | Apr 9 · Apr 25 · May 13 | Oct 10 · Oct 28 · Nov 12 | 184 days |
Average high temperature by month
1991–2020 normals at Jamestown 4 Ene
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 Jamestown, NY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Jamestown 4 Ene (station USC00304207, elevation 1,250 ft), 4.0 mi from Jamestown. 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 Jamestown
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Warren, PA | 18 mi | May 4 | Oct 21 |
| Corry, PA | 24 mi | May 7 | Oct 10 |
| Fredonia, NY | 24 mi | Apr 25 | Nov 1 |
| Salamanca, NY | 27 mi | May 18 | Oct 1 |
| Dunkirk, NY | 27 mi | Apr 30 | Oct 23 |
| Bradford, PA | 32 mi | May 18 | Oct 4 |
| Titusville, PA | 39 mi | May 12 | Oct 10 |
| Olean, NY | 41 mi | May 7 | Oct 11 |
| Erie, PA | 43 mi | Apr 26 | Nov 4 |
| Hamburg, NY | 48 mi | May 4 | Oct 17 |
Frequently asked questions
When is the last frost in Jamestown?
On average, the last spring frost (32°F) in Jamestown is around May 8. In about 1 year in 10 it comes after May 25, and in 9 years in 10 it comes after April 22.
When is the first frost in Jamestown?
The first fall frost (32°F) usually arrives around October 13. There’s a 10% chance of a freeze by October 1 and a 90% chance by October 30.
Can it frost in Jamestown 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 May 20.
What growing zone is Jamestown?
Jamestown is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 14701. See growing zones in New York.
More: all New York frost dates · New York growing zones · UV index today in Jamestown · frost vs. freeze