Checking current alerts… View NWS forecast and alerts.
Will it freeze in Shelbyville in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 32°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).
Tonight: forecast low 43°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
4 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 43°F Above 36°F · Mostly Clear
- Fri, Nov 6 35°F Frost possible · Partly Cloudy
- Sat, Nov 7 32°F Freeze · Partly Cloudy
- Sun, Nov 8 33°F Frost possible · Mostly Clear
- Mon, Nov 9 36°F Frost possible · Mostly Clear
- Tue, Nov 10 37°F Above 36°F · Mostly Clear
- Wed, Nov 11 37°F Above 36°F · 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 Shelbyville
The median first fall hard-freeze date (28°F) is October 21, from NOAA’s 1991–2020 Climate Normals at Shelbyville 1 E. 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 28 · May 9 · May 25 | Sep 15 · Oct 1 · Oct 14 | 143 days |
| 32°F freeze | Apr 19 · May 1 · May 15 | Sep 24 · Oct 10 · Oct 25 | 161 days |
| 28°F hard freeze | Apr 10 · Apr 24 · May 7 | Oct 4 · Oct 21 · Nov 4 | 179 days |
Average high temperature by month
1991–2020 normals at Shelbyville 1 E
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 Shelbyville, KY come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Shelbyville 1 E (station USC00157324, elevation 730 ft), 1.9 mi from Shelbyville. 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 Shelbyville
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| La Grange, KY | 16 mi | Apr 12 | Oct 25 |
| Middletown, KY | 16 mi | Apr 3 | Nov 3 |
| Crestwood, KY | 16 mi | Apr 12 | Oct 25 |
| Douglass Hills, KY | 17 mi | Apr 3 | Nov 3 |
| Jeffersontown, KY | 18 mi | Apr 3 | Nov 3 |
| Lyndon, KY | 20 mi | Apr 3 | Nov 3 |
| Frankfort, KY | 20 mi | Apr 15 | Oct 24 |
| Mount Washington, KY | 21 mi | Apr 6 | Nov 1 |
| Lawrenceburg, KY | 22 mi | Apr 12 | Oct 28 |
| St. Matthews, KY | 22 mi | Apr 3 | Nov 3 |
Frequently asked questions
When is the last frost in Shelbyville?
On average, the last spring frost (32°F) in Shelbyville is around May 1. In about 1 year in 10 it comes after May 15, and in 9 years in 10 it comes after April 19.
When is the first frost in Shelbyville?
The first fall frost (32°F) usually arrives around October 10. There’s a 10% chance of a freeze by September 24 and a 90% chance by October 25.
Can it frost in Shelbyville 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 9.
What growing zone is Shelbyville?
Shelbyville is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 40065. See growing zones in Kentucky.
More: all Kentucky frost dates · Kentucky growing zones · frost vs. freeze