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USDA Hardiness Zone 7a

Frost Dates for 42211 — Cadiz, Kentucky

NOAA 1991–2020 normals from Kenlake Resort, KY (484 ft), 16 miles west.

Updated

In Cadiz, the last spring frost (32°F) is around March 30 in half of years and has passed by April 16 in nine years out of ten. The first fall frost comes around November 4, as early as October 23 one year in ten, leaving a typical freeze-free season of 221 days (NOAA, Kenlake Resort, KY).

Last spring frost
March 30

50% probability

First fall frost
November 4

50% probability

Growing season
221 days

freeze-free, 50%

Hardiness zone
7a

0 to 5°F (-17.8 to -15.0°C) coldest night

First snow
January 30

median, 1991–2020

Last snow
February 16

median, 1991–2020

Winters with snow
85%

17 of 20 observed

Snow per year
3.9"

NOAA normal

Frost risk by date in Cadiz

Half of springs at Kenlake Resort, KY see their last 32°F night by March 30; only one in ten is past it by March 12, and one in ten still has one after April 16. Planting tender crops after April 6 leaves a 30% risk of a frost on them, after April 9 20%, and after April 16 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 47% of the 113 Kentucky stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 4 in half of years, as early as October 23 one year in ten, and holds off past November 21 one year in ten. A hard freeze of 28°F follows 12 days later, around November 16; in spring the one-in-ten date for 28°F is April 6, 10 days before the 32°F one. The freeze-free season lasts 221 days in a typical year, longer than at 97% of the 113 Kentucky stations; it reaches 246 days one year in ten and falls short of 198 one year in ten. On average 76 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 12 days longer, to about April 11, and return around October 26. Severe cold of 16°F or below comes in 98% of winters, usually between December 27 and February 8.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 26Mar 31Apr 4Apr 8Apr 11Apr 14Apr 18Apr 22Apr 28
32°FMar 12Mar 17Mar 22Mar 26Mar 30Apr 2Apr 6Apr 9Apr 16
28°FFeb 26Mar 4Mar 8Mar 12Mar 16Mar 20Mar 24Mar 30Apr 6
24°FFeb 12Feb 19Feb 25Feb 28Mar 4Mar 7Mar 11Mar 16Mar 23
20°FFeb 1Feb 6Feb 12Feb 16Feb 21Feb 25Feb 28Mar 4Mar 11
16°F98% of yrsJan 15Jan 26Jan 31Feb 3Feb 8Feb 13Feb 18Feb 24Mar 2
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 15Oct 18Oct 22Oct 24Oct 26Oct 28Oct 31Nov 3Nov 7
32°FOct 23Oct 28Oct 31Nov 2Nov 4Nov 8Nov 11Nov 14Nov 21
28°FNov 1Nov 5Nov 10Nov 13Nov 16Nov 20Nov 23Nov 28Dec 4
24°FNov 11Nov 16Nov 20Nov 25Nov 29Dec 1Dec 5Dec 10Dec 19
20°FNov 20Nov 29Dec 2Dec 6Dec 11Dec 17Dec 22Dec 27Jan 2
16°F98% of yrsDec 1Dec 8Dec 16Dec 21Dec 27Dec 31Jan 5Jan 12Jan 21

Freeze probabilities 1991–2020 at Kenlake Resort, 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 42211 →Compare Cadiz with another place →

Weather by month in Cadiz

July is the warmest month at Kenlake Resort, KY, averaging 90°F by day and 70°F at night; January is the coldest at 45°F and 27°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 44% of years.

Warmth for growing adds up to 4,786 growing degree days a year (base 50°F), more than at 97% of the 113 Kentucky stations. 38% of them (1,828) have built up by the end of June, and July adds the most, 921. Precipitation totals 55.9 inches a year, most in April (5.9") and least in January (3.5"); May to September bring 40% of it.

Monthly normals 1991–2020 at Kenlake Resort, KY
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan45273.5100%2216
Feb50315.5100%1736
Mar60405.496%8128
Apr71485.944%1303
May79575.50%0554
Jun86674.90%0790
Jul90704.50%0921
Aug90693.60%0903
Sep83623.80%0669
Oct71503.832%<1339
Nov59394.497%9102
Dec48325.1100%1826

Monthly normals 1991–2020 at Kenlake Resort, KY (484 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, Eddyville 5S, KY, 18 miles northwest of Cadiz, has a last frost 3 days earlier (March 27), a first frost 4 days later (November 8), a season 4 days longer.

Frost dates for 42038 (Eddyville) →

When it snows in Cadiz, Kentucky

The first measurable snow (0.1 inch or more) in Cadiz usually arrives around January 30, and the last of the season around February 16. Those are the middle dates across the winters of 1991–2020 at Cadiz, KY, 1.7 miles away: half of years saw snow earlier, half later. Snow fell in 85% of those winters. The last 32°F night of spring typically comes 42 days after the last snow.

Planting calendar for 42211

What to do and when, from the 50% frost dates for Cadiz, Kentucky
WhenWhat to do
January 19 – February 2Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 2 – February 16Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 2 – March 16Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 30 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 12Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 21Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 4 onwardPlant 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 42211 is 16 miles from Kenlake Resort, KY, which stands at 484 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 42211 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.

Frost dates across Kentucky →

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.

Other zone 7a places in Kentucky