Barberton Frost Dates and Growing Season
Frost and the growing season
NOAA's 1991-2020 freeze probabilities for Akron Fulton Intl AP. A median date has an even chance of a later freeze in spring, or an earlier one in fall.
The last spring freeze typically comes around April 24 and the first fall freeze around October 28, a growing season of about 186 days.
- Median at 36°F
- last May 3, first October 15
- Median at 32°F
- last April 24, first October 28
- Median at 28°F
- last April 13, first November 7
Last freeze in spring
The chance of a later freeze than the date shown. At 10 percent, one spring in ten still freezes after the date; planting after the 10 percent date for 32°F is the cautious choice.
| Threshold | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 21 | May 14 | May 10 | May 6 | May 3 | Apr 30 | Apr 28 | Apr 24 | Apr 21 |
| 32°F | May 9 | May 3 | Apr 30 | Apr 26 | Apr 24 | Apr 21 | Apr 18 | Apr 15 | Apr 10 |
| 28°F | Apr 25 | Apr 21 | Apr 18 | Apr 16 | Apr 13 | Apr 9 | Apr 5 | Apr 2 | Mar 29 |
| 24°F | Apr 17 | Apr 13 | Apr 8 | Apr 4 | Apr 2 | Mar 31 | Mar 27 | Mar 23 | Mar 17 |
| 20°F | Apr 6 | Apr 1 | Mar 28 | Mar 25 | Mar 22 | Mar 19 | Mar 16 | Mar 12 | Mar 6 |
| 16°F | Mar 27 | Mar 23 | Mar 19 | Mar 16 | Mar 12 | Mar 9 | Mar 6 | Mar 1 | Feb 23 |
First freeze in fall
The chance of an earlier freeze than the date shown. At 10 percent, one fall in ten freezes before the date.
| Threshold | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 1 | Oct 6 | Oct 9 | Oct 12 | Oct 15 | Oct 19 | Oct 21 | Oct 25 | Oct 29 |
| 32°F | Oct 12 | Oct 19 | Oct 22 | Oct 25 | Oct 28 | Oct 31 | Nov 1 | Nov 4 | Nov 8 |
| 28°F | Oct 27 | Oct 31 | Nov 2 | Nov 4 | Nov 7 | Nov 9 | Nov 12 | Nov 16 | Nov 21 |
| 24°F | Nov 5 | Nov 8 | Nov 11 | Nov 14 | Nov 17 | Nov 20 | Nov 23 | Nov 28 | Dec 4 |
| 20°F | Nov 11 | Nov 15 | Nov 19 | Nov 23 | Nov 27 | Nov 30 | Dec 4 | Dec 8 | Dec 17 |
| 16°F | Nov 19 | Nov 25 | Nov 30 | Dec 4 | Dec 8 | Dec 13 | Dec 17 | Dec 22 | Dec 27 |
Growing season length
Days between the last spring and first fall freeze at each threshold, with the chance of a season at least that long.
| Threshold | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | 183 | 176 | 172 | 168 | 164 | 159 | 155 | 149 | 141 |
| 32°F | 206 | 198 | 194 | 190 | 186 | 182 | 178 | 173 | 167 |
| 28°F | 230 | 223 | 217 | 213 | 208 | 205 | 201 | 196 | 190 |
| 24°F | 254 | 246 | 240 | 235 | 230 | 226 | 222 | 217 | 209 |
| 20°F | 276 | 269 | 262 | 257 | 252 | 247 | 242 | 237 | 228 |
| 16°F | 297 | 290 | 284 | 278 | 273 | 267 | 261 | 256 | 248 |
How often it gets that cold
The share of years with at least one night at or below each temperature.
- 36°F or colder
- 100% of years
- 32°F or colder
- 100% of years
- 28°F or colder
- 100% of years
- 24°F or colder
- 100% of years
- 20°F or colder
- 100% of years
- 16°F or colder
- 100% of years
Degree days
A degree day is one degree of the daily mean temperature beyond a base, for one day. Heating degree days count cold (the fuel a house burns), cooling degree days heat, growing degree days the warmth a crop needs; each crop has its own base.
- Heating degree days, base 65°F
- 5,538
- Cooling degree days, base 65°F
- 934
- Growing degree days, base 40°F
- 5,673
- Growing degree days, base 45°F
- 4,445
- Growing degree days, base 50°F
- 3,356
- Growing degree days, base 55°F
- 2,410
- Growing degree days, base 60°F
- 1,599
Growing degree days by month, base 50°F
Heating and cooling by month
| Month | Heating DD | Cooling DD | Growing DD 50 |
|---|---|---|---|
| January | 1,120 | 0 | 5 |
| February | 952 | 0 | 8 |
| March | 796 | 1 | 35 |
| April | 426 | 9 | 136 |
| May | 168 | 65 | 372 |
| June | 27 | 190 | 614 |
| July | 2 | 298 | 761 |
| August | 5 | 251 | 711 |
| September | 75 | 102 | 479 |
| October | 345 | 17 | 188 |
| November | 658 | 1 | 40 |
| December | 964 | 0 | 8 |
What this means
NOAA computes these from the daily lows at the station over 1991-2020, fitting the dates of each year's last and first freeze to a distribution, so a date can be stated at any level of risk. 36°F is a frost risk for tender plants on a clear, calm night, since the ground cools below the air above it; 32°F is a freeze; 28°F is a hard freeze that kills most annuals.
The station is 12.1 km from Barberton. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.
More
Sources
NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USW00014813 (Akron Fulton Intl AP). Public domain.