USDA Hardiness Zone 7a
Frost Dates for 42701 — Elizabethtown, Kentucky
NOAA 1991–2020 normals from Elizabethtown Wp Cs, KY (690 ft), 2 miles south.
Updated
In Elizabethtown, the last spring frost (32°F) is around April 16 in half of years and has passed by May 4 in nine years out of ten. The first fall frost comes around October 25, as early as October 13 one year in ten, leaving a typical freeze-free season of 191 days (NOAA, Elizabethtown Wp Cs, KY).
- Last spring frost
- April 16
- First fall frost
- October 25
- Growing season
- 191 days
- Hardiness zone
- 7a
50% probability
50% probability
freeze-free, 50%
0 to 5°F (-17.8 to -15.0°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 45%
- Snow per year
- 2.7"
median, 1991–2020
median, 1991–2020
9 of 20 observed
NOAA normal
Frost risk by date in Elizabethtown
Half of springs at Elizabethtown Wp Cs, KY see their last 32°F night by April 16; only one in ten is past it by March 31, and one in ten still has one after May 4. Planting tender crops after April 22 leaves a 30% risk of a frost on them, after April 27 20%, and after May 4 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 54% of the 113 Kentucky stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 25 in half of years, as early as October 13 one year in ten, and holds off past November 3 one year in ten. A hard freeze of 28°F follows 9 days later, around November 3; in spring the one-in-ten date for 28°F is April 18, 16 days before the 32°F one. The freeze-free season lasts 191 days in a typical year, shorter than at 56% of the 113 Kentucky stations; it reaches 210 days one year in ten and falls short of 168 one year in ten. On average 98 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 11 days longer, to about April 27, and return around October 16. Severe cold of 16°F or below comes every winter, usually between December 6 and February 27.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 12 | Apr 18 | Apr 21 | Apr 24 | Apr 27 | Apr 30 | May 4 | May 8 | May 13 |
| 32°F | Mar 31 | Apr 5 | Apr 9 | Apr 12 | Apr 16 | Apr 19 | Apr 22 | Apr 27 | May 4 |
| 28°F | Mar 17 | Mar 23 | Mar 27 | Mar 30 | Apr 1 | Apr 5 | Apr 8 | Apr 12 | Apr 18 |
| 24°F | Mar 2 | Mar 9 | Mar 14 | Mar 18 | Mar 22 | Mar 26 | Mar 29 | Apr 1 | Apr 6 |
| 20°F | Feb 19 | Feb 26 | Mar 2 | Mar 6 | Mar 10 | Mar 13 | Mar 17 | Mar 22 | Mar 28 |
| 16°F | Feb 2 | Feb 10 | Feb 18 | Feb 22 | Feb 27 | Mar 2 | Mar 7 | Mar 12 | Mar 17 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 5 | Oct 8 | Oct 11 | Oct 14 | Oct 16 | Oct 19 | Oct 21 | Oct 23 | Oct 26 |
| 32°F | Oct 13 | Oct 18 | Oct 21 | Oct 23 | Oct 25 | Oct 27 | Oct 29 | Oct 31 | Nov 3 |
| 28°F | Oct 23 | Oct 27 | Oct 30 | Nov 1 | Nov 3 | Nov 4 | Nov 7 | Nov 11 | Nov 16 |
| 24°F | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 16 | Nov 19 | Nov 23 | Nov 29 |
| 20°F | Nov 7 | Nov 12 | Nov 16 | Nov 20 | Nov 24 | Nov 28 | Dec 1 | Dec 5 | Dec 12 |
| 16°F | Nov 16 | Nov 23 | Nov 28 | Dec 2 | Dec 6 | Dec 11 | Dec 17 | Dec 24 | Dec 30 |
Freeze probabilities 1991–2020 at Elizabethtown Wp Cs, KY, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 42701 →Compare Elizabethtown with another place →
Weather by month in Elizabethtown
July is the warmest month at Elizabethtown Wp Cs, KY, averaging 86°F by day and 66°F at night; January is the coldest at 42°F and 24°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 87% of years and May still brings one in 14% of years.
Warmth for growing adds up to 3,868 growing degree days a year (base 50°F), fewer than at 58% of the 113 Kentucky stations. 37% of them (1,439) have built up by the end of June, and July adds the most, 801. Precipitation totals 54.3 inches a year, most in May (5.8") and least in September (3.5"); May to September bring 43% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 42 | 24 | 4.0 | 100% | 23 | 11 |
| Feb | 47 | 27 | 3.9 | 100% | 20 | 18 |
| Mar | 56 | 35 | 5.1 | 100% | 14 | 66 |
| Apr | 67 | 44 | 5.1 | 87% | 4 | 214 |
| May | 75 | 54 | 5.8 | 14% | <1 | 452 |
| Jun | 83 | 62 | 4.7 | 0% | 0 | 678 |
| Jul | 86 | 66 | 5.4 | 0% | 0 | 801 |
| Aug | 85 | 64 | 4.1 | 0% | 0 | 767 |
| Sep | 80 | 57 | 3.5 | 0% | 0 | 545 |
| Oct | 69 | 45 | 4.1 | 80% | 3 | 244 |
| Nov | 56 | 34 | 3.7 | 100% | 12 | 57 |
| Dec | 46 | 28 | 4.9 | 100% | 21 | 15 |
Monthly normals 1991–2020 at Elizabethtown Wp Cs, KY (690 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Hodgenville Lincoln P, KY, 14 miles southeast of Elizabethtown, has the same 50% last-frost date, the same first-frost date.
When it snows in Elizabethtown, Kentucky
Measurable snow is rare here: only 9 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Boston 6 SW, KY, 6.9 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 42701
| When | What to do |
|---|---|
| February 5 – February 19 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 19 – March 5 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 19 – April 2 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 16 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 2 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 11 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 25 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 42701 is 2 miles from Elizabethtown Wp Cs, KY, which stands at 690 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 42701 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.