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
- First fall frost
- October 16
- Growing season
- 160 days
- Hardiness zone
- 6a
50% probability
50% probability
freeze-free, 50%
-10 to -5°F (-23.3 to -20.6°C) coldest night
- First snow
- November 9
- Last snow
- April 11
- Winters with snow
- 100%
- Snow per year
- 111"
median, 1991–2020
median, 1991–2020
24 of 24 observed
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.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 2 | May 9 | May 13 | May 17 | May 20 | May 23 | May 26 | May 30 | Jun 1 |
| 32°F | Apr 23 | Apr 28 | Apr 30 | May 4 | May 8 | May 11 | May 14 | May 18 | May 23 |
| 28°F | Apr 9 | Apr 16 | Apr 20 | Apr 23 | Apr 26 | Apr 29 | May 1 | May 6 | May 14 |
| 24°F | Mar 29 | Apr 2 | Apr 5 | Apr 8 | Apr 12 | Apr 15 | Apr 18 | Apr 21 | Apr 26 |
| 20°F | Mar 16 | Mar 21 | Mar 26 | Mar 30 | Mar 31 | Apr 2 | Apr 5 | Apr 9 | Apr 14 |
| 16°F | Mar 7 | Mar 13 | Mar 16 | Mar 19 | Mar 22 | Mar 25 | Mar 28 | Mar 31 | Apr 3 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 17 | Sep 23 | Sep 27 | Sep 30 | Oct 2 | Oct 5 | Oct 8 | Oct 12 | Oct 18 |
| 32°F | Oct 1 | Oct 5 | Oct 9 | Oct 13 | Oct 16 | Oct 20 | Oct 23 | Oct 28 | Nov 2 |
| 28°F | Oct 13 | Oct 19 | Oct 25 | Oct 29 | Nov 1 | Nov 3 | Nov 6 | Nov 10 | Nov 16 |
| 24°F | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 16 | Nov 20 | Nov 24 | Nov 30 |
| 20°F | Nov 9 | Nov 14 | Nov 18 | Nov 22 | Nov 26 | Nov 29 | Dec 3 | Dec 6 | Dec 13 |
| 16°F | Nov 18 | Nov 24 | Nov 29 | Dec 2 | Dec 6 | Dec 11 | Dec 14 | Dec 19 | Dec 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.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 32 | 17 | 3.6 | 100% | 28 | 1 |
| Feb | 34 | 17 | 2.6 | 100% | 26 | 2 |
| Mar | 43 | 24 | 3.4 | 100% | 24 | 16 |
| Apr | 57 | 34 | 4.0 | 100% | 15 | 67 |
| May | 68 | 44 | 4.2 | 69% | 3 | 234 |
| Jun | 76 | 54 | 4.7 | 0% | 0 | 455 |
| Jul | 80 | 58 | 4.4 | 0% | 0 | 587 |
| Aug | 79 | 57 | 4.1 | 0% | 0 | 546 |
| Sep | 73 | 50 | 4.6 | 10% | <1 | 347 |
| Oct | 61 | 41 | 4.8 | 84% | 5 | 118 |
| Nov | 48 | 32 | 4.0 | 100% | 17 | 21 |
| Dec | 37 | 24 | 3.9 | 100% | 26 | 4 |
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.
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
| When | What to do |
|---|---|
| February 27 – March 13 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 13 – March 27 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| April 10 – April 24 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| May 8 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 24 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 2 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 16 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 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.