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USDA Hardiness Zone 6a

Frost Dates for 16401 — Albion, Pennsylvania

NOAA 1991–2020 normals from Springboro 3 WNW, PA (1,005 ft), 5 miles southwest.

Updated

In Albion, the last spring frost (32°F) is around May 8 in half of years and has passed by May 23 in nine years out of ten. The first fall frost comes around October 16, as early as October 1 one year in ten, leaving a typical freeze-free season of 160 days (NOAA, Springboro 3 WNW, PA).

Last spring frost
May 8

50% probability

First fall frost
October 16

50% probability

Growing season
160 days

freeze-free, 50%

Hardiness zone
6a

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

First snow
November 9

median, 1991–2020

Last snow
April 11

median, 1991–2020

Winters with snow
100%

24 of 24 observed

Snow per year
111"

NOAA normal

Frost risk by date in Albion

Half of springs at Springboro 3 WNW, PA see their last 32°F night by May 8; only one in ten is past it by April 23, and one in ten still has one after May 23. Planting tender crops after May 14 leaves a 30% risk of a frost on them, after May 18 20%, and after May 23 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 72% of the 176 Pennsylvania stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 16 in half of years, as early as October 1 one year in ten, and holds off past November 2 one year in ten. A hard freeze of 28°F follows 16 days later, around November 1; in spring the one-in-ten date for 28°F is May 14, 9 days before the 32°F one. The freeze-free season lasts 160 days in a typical year, shorter than at 73% of the 176 Pennsylvania stations; it reaches 183 days one year in ten and falls short of 136 one year in ten. On average 141 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 May 20, and return around October 2. Severe cold of 16°F or below comes every winter, usually between December 6 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 2May 9May 13May 17May 20May 23May 26May 30Jun 1
32°FApr 23Apr 28Apr 30May 4May 8May 11May 14May 18May 23
28°FApr 9Apr 16Apr 20Apr 23Apr 26Apr 29May 1May 6May 14
24°FMar 29Apr 2Apr 5Apr 8Apr 12Apr 15Apr 18Apr 21Apr 26
20°FMar 16Mar 21Mar 26Mar 30Mar 31Apr 2Apr 5Apr 9Apr 14
16°FMar 7Mar 13Mar 16Mar 19Mar 22Mar 25Mar 28Mar 31Apr 3
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 23Sep 27Sep 30Oct 2Oct 5Oct 8Oct 12Oct 18
32°FOct 1Oct 5Oct 9Oct 13Oct 16Oct 20Oct 23Oct 28Nov 2
28°FOct 13Oct 19Oct 25Oct 29Nov 1Nov 3Nov 6Nov 10Nov 16
24°FNov 1Nov 4Nov 7Nov 10Nov 13Nov 16Nov 20Nov 24Nov 30
20°FNov 9Nov 14Nov 18Nov 22Nov 26Nov 29Dec 3Dec 6Dec 13
16°FNov 18Nov 24Nov 29Dec 2Dec 6Dec 11Dec 14Dec 19Dec 25

Freeze probabilities 1991–2020 at Springboro 3 WNW, 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 16401 →Compare Albion with another place →

Weather by month in Albion

July is the warmest month at Springboro 3 WNW, PA, averaging 80°F by day and 58°F at night; January is the coldest at 32°F and 17°F. A freezing night is all but certain in every month from November to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 69% of years.

Warmth for growing adds up to 2,397 growing degree days a year (base 50°F), fewer than at 82% of the 176 Pennsylvania stations. 32% of them (775) have built up by the end of June, and July adds the most, 587. Precipitation totals 48.3 inches a year, most in October (4.8") and least in February (2.6"); May to September bring 46% of it.

Monthly normals 1991–2020 at Springboro 3 WNW, PA
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan32173.6100%281
Feb34172.6100%262
Mar43243.4100%2416
Apr57344.0100%1567
May68444.269%3234
Jun76544.70%0455
Jul80584.40%0587
Aug79574.10%0546
Sep73504.610%<1347
Oct61414.884%5118
Nov48324.0100%1721
Dec37243.9100%264

Monthly normals 1991–2020 at Springboro 3 WNW, PA (1,005 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, Linesville 1 S, PA, 17 miles south of Albion, has a last frost 8 days earlier (April 30), a first frost 7 days later (October 23), a season 17 days longer.

Frost dates for 16424 (Linesville) →

When it snows in Albion, Pennsylvania

The first measurable snow (0.1 inch or more) in Albion usually arrives around November 9, and the last of the season around April 11. Those are the middle dates across the winters of 1991–2020 at Springboro 3 WNW, PA, 5.3 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 27 days after the last snow.

Planting calendar for 16401

What to do and when, from the 50% frost dates for Albion, Pennsylvania
WhenWhat to do
February 27 – March 13Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
March 13 – March 27Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
April 10 – April 24Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
May 8 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 24Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 2Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 16 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 16401 is 5 miles from Springboro 3 WNW, PA, which stands at 1,005 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 44030 (Conneaut). The 2023 USDA Plant Hardiness Zone Map lists ZIP 16401 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 Pennsylvania →

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 Pennsylvania