USDA Hardiness Zone 6a
Frost Dates for 43155 — Sugar Grove, Ohio
NOAA 1991–2020 normals from Lancaster, OH (827 ft), 8 miles northwest.
Updated
In Sugar Grove, the last spring frost (32°F) is around April 22 in half of years and has passed by May 9 in nine years out of ten. The first fall frost comes around October 24, as early as October 8 one year in ten, leaving a typical freeze-free season of 183 days (NOAA, Lancaster, OH).
- Last spring frost
- April 22
- First fall frost
- October 24
- Growing season
- 183 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
- December 9
- Last snow
- March 10
- Winters with snow
- 100%
- Snow per year
- 20.2"
median, 1991–2020
median, 1991–2020
29 of 29 observed
NOAA normal
Frost risk by date in Sugar Grove
Half of springs at Lancaster, OH see their last 32°F night by April 22; only one in ten is past it by April 7, and one in ten still has one after May 9. Planting tender crops after April 30 leaves a 30% risk of a frost on them, after May 3 20%, and after May 9 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 24% of the 148 Ohio stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 24 in half of years, as early as October 8 one year in ten, and holds off past November 6 one year in ten. A hard freeze of 28°F follows 10 days later, around November 3; in spring the one-in-ten date for 28°F is April 27, 12 days before the 32°F one. The freeze-free season lasts 183 days in a typical year, longer than at 59% of the 148 Ohio stations; it reaches 204 days one year in ten and falls short of 161 one year in ten. On average 114 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 9 days longer, to about May 1, and return around October 12. Severe cold of 16°F or below comes every winter, usually between December 11 and March 5.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 18 | Apr 22 | Apr 25 | Apr 29 | May 1 | May 4 | May 7 | May 12 | May 19 |
| 32°F | Apr 7 | Apr 13 | Apr 16 | Apr 19 | Apr 22 | Apr 26 | Apr 30 | May 3 | May 9 |
| 28°F | Mar 24 | Mar 30 | Apr 2 | Apr 5 | Apr 8 | Apr 12 | Apr 16 | Apr 20 | Apr 27 |
| 24°F | Mar 12 | Mar 18 | Mar 22 | Mar 26 | Mar 29 | Apr 1 | Apr 3 | Apr 7 | Apr 14 |
| 20°F | Feb 28 | Mar 6 | Mar 10 | Mar 14 | Mar 18 | Mar 21 | Mar 24 | Mar 28 | Apr 3 |
| 16°F | Feb 13 | Feb 22 | Feb 28 | Mar 2 | Mar 5 | Mar 9 | Mar 13 | Mar 18 | Mar 24 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 27 | Oct 3 | Oct 6 | Oct 9 | Oct 12 | Oct 15 | Oct 18 | Oct 21 | Oct 26 |
| 32°F | Oct 8 | Oct 14 | Oct 18 | Oct 21 | Oct 24 | Oct 26 | Oct 29 | Nov 2 | Nov 6 |
| 28°F | Oct 19 | Oct 24 | Oct 29 | Nov 1 | Nov 3 | Nov 5 | Nov 8 | Nov 12 | Nov 17 |
| 24°F | Oct 29 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 17 | Nov 21 | Nov 27 | Dec 2 |
| 20°F | Nov 8 | Nov 13 | Nov 19 | Nov 24 | Nov 28 | Dec 1 | Dec 4 | Dec 9 | Dec 18 |
| 16°F | Nov 21 | Nov 29 | Dec 3 | Dec 6 | Dec 11 | Dec 15 | Dec 20 | Dec 25 | Jan 1 |
Freeze probabilities 1991–2020 at Lancaster, OH, 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 43155 →Compare Sugar Grove with another place →
Weather by month in Sugar Grove
July is the warmest month at Lancaster, OH, averaging 85°F by day and 65°F at night; January is the coldest at 38°F and 22°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 27% of years.
Warmth for growing adds up to 3,518 growing degree days a year (base 50°F), more than at 79% of the 148 Ohio stations. 37% of them (1,286) have built up by the end of June, and July adds the most, 770. Precipitation totals 40.3 inches a year, most in May (4.2") and least in February (2.3"); May to September bring 47% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 38 | 22 | 2.9 | 100% | 25 | 6 |
| Feb | 41 | 24 | 2.3 | 100% | 23 | 9 |
| Mar | 52 | 32 | 3.4 | 100% | 18 | 48 |
| Apr | 65 | 41 | 3.9 | 96% | 5 | 168 |
| May | 74 | 52 | 4.2 | 27% | <1 | 409 |
| Jun | 82 | 61 | 4.1 | 0% | 0 | 646 |
| Jul | 85 | 65 | 4.2 | 0% | 0 | 770 |
| Aug | 84 | 63 | 3.4 | 0% | 0 | 725 |
| Sep | 78 | 55 | 3.2 | 2% | <1 | 495 |
| Oct | 66 | 44 | 3.1 | 75% | 4 | 195 |
| Nov | 53 | 34 | 2.7 | 100% | 15 | 38 |
| Dec | 42 | 27 | 2.9 | 100% | 23 | 9 |
Monthly normals 1991–2020 at Lancaster, OH (827 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, Logan, OH, 9 miles southeast of Sugar Grove, has a last frost 8 days later (April 30), a first frost 10 days earlier (October 14), a season 16 days shorter.
When it snows in Sugar Grove, Ohio
The first measurable snow (0.1 inch or more) in Sugar Grove usually arrives around December 9, and the last of the season around March 10. Those are the middle dates across the winters of 1991–2020 at New Lexington 2 NW, OH, 17.4 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 43 days after the last snow.
Planting calendar for 43155
| When | What to do |
|---|---|
| February 11 – February 25 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 25 – March 11 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 25 – April 8 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 22 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 1 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 10 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 24 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 43155 is 8 miles from Lancaster, OH, which stands at 827 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 43130 (Lancaster). The 2023 USDA Plant Hardiness Zone Map lists ZIP 43155 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.
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.