USDA Hardiness Zone 7a
Frost Dates for 42378 — Whitesville, Kentucky
Averages from Beaver Dam, Ky US, the nearest reporting station, 15 miles away.
Plant tender crops after April 10, and expect the first autumn freeze around October 22. That leaves about 192 frost-free days.
- Last spring frost
- April 10
- First fall frost
- October 22
- Growing season
- 192 days
- Hardiness zone
- 7a
50% probability
50% probability
frost-free
0 to 5°F annual low
Planting calendar for 42378
| When | What to do |
|---|---|
| January 30 – February 13 | Start peppers and aubergines indoors They need eight to ten weeks under lights before they can go out. |
| February 13 – February 27 | Start tomatoes indoors Six to eight weeks gives a transplant big enough to set fruit early. |
| March 13 – March 27 | Sow peas, spinach, lettuce, radish outdoors These tolerate light frost and prefer to germinate in cool soil. |
| April 10 onward | Transplant tomatoes, peppers, basil, squash, cucumbers The average last freeze has passed — still watch the actual forecast. |
| by July 30 | Sow the autumn crop of carrots, beets and brassicas They need about twelve weeks to size up before growth stops. |
| by October 8 | Harvest tender crops, or be ready to cover them A first freeze two weeks early is well within normal variation. |
| October 22 onward | Plant garlic, mulch beds, lift tender bulbs Garlic wants a cold spell; bare soil loses structure over winter. |
What these dates mean
Wait until after April 10 to put tender plants — tomatoes, peppers, basil, squash — in the ground. That is the date by which half of years in Whitesville, Kentucky are past their last freeze. Harvest before October 22, which leaves roughly 192 frost-free days.
ZIP 42378 sits in USDA hardiness zone 7a, meaning the average coldest night of the year falls between 0 to 5°F. Zone decides what survives the winter; frost dates decide when to plant each spring. They are different questions, and a plant can pass one and fail the other.
These are thirty-year NOAA averages for 1991–2020, not a forecast. Any individual year can frost two to three weeks either side of these dates, so check the actual forecast before planting out.