Last spring frost
Apr 10
Frost Dates for Rosine, KY
First fall frost
Oct 22
Growing season
192 days
Hardiness zone
7a
In an average year around Rosine, KY, the last spring frost (32°F) is about Apr 10 and the first fall frost is about Oct 22, giving roughly a 192-day growing season. To be safe most years, wait until Mar 26 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | May 9 | Apr 23 | Apr 9 |
| Freeze (32°F) | Apr 29 | Apr 10 | Mar 26 |
| Hard (28°F) | Apr 18 | Mar 31 | Mar 13 |
| Severe (24°F) | Apr 7 | Mar 22 | Feb 28 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 9 | May 3 | Apr 30 | Apr 26 | Apr 23 | Apr 20 | Apr 16 | Apr 13 | Apr 9 |
| 32°F | Apr 29 | Apr 23 | Apr 18 | Apr 14 | Apr 10 | Apr 7 | Apr 3 | Mar 31 | Mar 26 |
| 28°F | Apr 18 | Apr 11 | Apr 6 | Apr 2 | Mar 31 | Mar 28 | Mar 25 | Mar 21 | Mar 13 |
| 24°F | Apr 7 | Apr 1 | Mar 29 | Mar 26 | Mar 22 | Mar 18 | Mar 14 | Mar 8 | Feb 28 |
| 20°F | Mar 29 | Mar 23 | Mar 18 | Mar 14 | Mar 9 | Mar 5 | Feb 28 | Feb 25 | Feb 17 |
| 16°F | Mar 20 | Mar 13 | Mar 8 | Mar 3 | Feb 28 | Feb 24 | Feb 18 | Feb 12 | Feb 5 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Sep 30 | Oct 12 | Oct 24 |
| Freeze (32°F) | Oct 8 | Oct 22 | Nov 3 |
| Hard (28°F) | Oct 18 | Nov 1 | Nov 18 |
| Severe (24°F) | Oct 28 | Nov 13 | Dec 2 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 30 | Oct 4 | Oct 7 | Oct 10 | Oct 12 | Oct 15 | Oct 17 | Oct 20 | Oct 24 |
| 32°F | Oct 8 | Oct 12 | Oct 16 | Oct 19 | Oct 22 | Oct 24 | Oct 27 | Oct 29 | Nov 3 |
| 28°F | Oct 18 | Oct 23 | Oct 26 | Oct 30 | Nov 1 | Nov 4 | Nov 7 | Nov 12 | Nov 18 |
| 24°F | Oct 28 | Nov 1 | Nov 5 | Nov 9 | Nov 13 | Nov 17 | Nov 21 | Nov 27 | Dec 2 |
| 20°F | Nov 5 | Nov 12 | Nov 16 | Nov 21 | Nov 26 | Dec 1 | Dec 4 | Dec 8 | Dec 16 |
| 16°F | Nov 15 | Nov 24 | Dec 1 | Dec 5 | Dec 8 | Dec 14 | Dec 19 | Dec 25 | Jan 1 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Beaver Dam, Ky, about 13 miles away@if(!empty($station['elevation_ft'])), at 400 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Rosine, KY?
On average, the last spring frost (32°F) around Rosine, KY is about Apr 10. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 26.
When is the first frost in the fall?
The first fall frost around Rosine, KY typically arrives about Oct 22. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Apr 10 on average, or Mar 26 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 192 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 42349 Planting calendar → Kentucky frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026