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USDA Hardiness Zone 6a

Frost Dates for 14724 — Clymer, New York

NOAA 1991–2020 normals from Union City Filtration Plant, PA (1,400 ft), 15 miles southwest.

Updated

In Clymer, the last spring frost (32°F) is around May 7 in half of years and has passed by May 24 in nine years out of ten. The first fall frost comes around October 10, as early as September 29 one year in ten, leaving a typical freeze-free season of 155 days (NOAA, Union City Filtration Plant, PA).

Last spring frost
May 7

50% probability

First fall frost
October 10

50% probability

Growing season
155 days

freeze-free, 50%

Hardiness zone
6a

-10 to -5°F (-23.3 to -20.6°C) coldest night

First snow
November 2

median, 1991–2020

Last snow
April 14

median, 1991–2020

Winters with snow
100%

15 of 15 observed

Snow per year
224.5"

NOAA normal

Frost risk by date in Clymer

Half of springs at Union City Filtration Plant, PA see their last 32°F night by May 7; only one in ten is past it by April 23, and one in ten still has one after May 24. Planting tender crops after May 14 leaves a 30% risk of a frost on them, after May 19 20%, and after May 24 10%. The 17 days between the even-odds date and the one-in-ten date is wider than at 90% of the 173 New York stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 10 in half of years, as early as September 29 one year in ten, and holds off past October 24 one year in ten. A hard freeze of 28°F follows 13 days later, around October 23; in spring the one-in-ten date for 28°F is May 12, 12 days before the 32°F one. The freeze-free season lasts 155 days in a typical year, shorter than at 65% of the 173 New York stations; it reaches 175 days one year in ten and falls short of 134 one year in ten. On average 150 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 13 days longer, to about May 20, and return around September 30. Severe cold of 16°F or below comes every winter, usually between December 2 and March 22.

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

Freeze probabilities 1991–2020 at Union City Filtration Plant, PA, 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 14724 →Compare Clymer with another place →

Compared with the next station

The nearest other station, Westfield 2 SSE, NY, 16 miles north of Clymer and 693 feet lower, has a last frost 16 days earlier (April 21), a first frost 26 days later (November 5), a season 42 days longer.

Frost dates for 16428 (North East) →

When it snows in Clymer, New York

The first measurable snow (0.1 inch or more) in Clymer usually arrives around November 2, and the last of the season around April 14. Those are the middle dates across the winters of 1991–2020 at Sherman, NY, 7.3 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 23 days after the last snow.

Planting calendar for 14724

What to do and when, from the 50% frost dates for Clymer, New York
WhenWhat to do
February 26 – March 12Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
March 12 – March 26Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
April 9 – April 23Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
May 7 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 18Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by September 26Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 10 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 14724 is 15 miles from Union City Filtration Plant, PA, which stands at 1,400 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 6 other ZIP codes share the station; its figures are presented in full for 16407 (Corry). The 2023 USDA Plant Hardiness Zone Map lists ZIP 14724 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across New York →

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.

ZIP codes measured at the same station

Other zone 6a places in New York