Checking current alerts… View NWS forecast and alerts.
Will it freeze in Jackson in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 30°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).
Tonight: forecast low 38°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
5 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 38°F Above 36°F · Rain Showers Likely
- Fri, Nov 6 33°F Frost possible · Slight Chance Rain Showers
- Sat, Nov 7 30°F Freeze · Partly Cloudy
- Sun, Nov 8 33°F Frost possible · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 34°F Frost possible · Mostly Clear
- Wed, Nov 11 34°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 Jackson
The median first fall hard-freeze date (28°F) is October 28, from NOAA’s 1991–2020 Climate Normals at Jackson Reynolds Field. 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 27 · May 13 · May 29 | Sep 20 · Oct 3 · Oct 15 | 143 days |
| 32°F freeze | Apr 16 · May 1 · May 18 | Sep 30 · Oct 14 · Oct 28 | 164 days |
| 28°F hard freeze | Apr 4 · Apr 20 · May 6 | Oct 12 · Oct 28 · Nov 11 | 189 days |
Average high temperature by month
1991–2020 normals at Jackson Reynolds Field
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 Jackson, MI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Jackson Reynolds Field (station USW00014833, elevation 998 ft), 3.5 mi from Jackson. 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 Jackson
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Albion, MI | 18 mi | May 1 | Oct 14 |
| Chelsea, MI | 21 mi | Apr 30 | Oct 12 |
| Eaton Rapids, MI | 22 mi | Apr 30 | Oct 14 |
| Mason, MI | 24 mi | Apr 28 | Oct 17 |
| Hillsdale, MI | 25 mi | May 3 | Oct 12 |
| Tecumseh, MI | 29 mi | May 3 | Oct 13 |
| Marshall, MI | 29 mi | Apr 30 | Oct 19 |
| Adrian, MI | 30 mi | May 1 | Oct 15 |
| Charlotte, MI | 31 mi | May 1 | Oct 15 |
| Saline, MI | 32 mi | May 2 | Oct 11 |
Frequently asked questions
When is the last frost in Jackson?
On average, the last spring frost (32°F) in Jackson is around May 1. In about 1 year in 10 it comes after May 18, and in 9 years in 10 it comes after April 16.
When is the first frost in Jackson?
The first fall frost (32°F) usually arrives around October 14. There’s a 10% chance of a freeze by September 30 and a 90% chance by October 28.
Can it frost in Jackson 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 13.
What growing zone is Jackson?
Jackson 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 49203. See growing zones in Michigan.
More: all Michigan frost dates · Michigan growing zones · UV index today in Jackson · frost vs. freeze