Wauzeka Frost Dates and Growing Season
Frost and the growing season
NOAA's 1991-2020 freeze probabilities for Steuben 4 Se. 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 22 and the first fall freeze around October 20, a growing season of about 179 days.
- Median at 36°F
- last May 4, first October 8
- Median at 32°F
- last April 22, first October 20
- Median at 28°F
- last April 10, first October 30
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 19 | May 13 | May 10 | May 7 | May 4 | May 1 | Apr 28 | Apr 24 | Apr 18 |
| 32°F | May 8 | May 3 | Apr 30 | Apr 26 | Apr 22 | Apr 19 | Apr 15 | Apr 12 | Apr 7 |
| 28°F | Apr 29 | Apr 22 | Apr 17 | Apr 13 | Apr 10 | Apr 7 | Apr 5 | Apr 2 | Mar 28 |
| 24°F | Apr 16 | Apr 10 | Apr 7 | Apr 4 | Apr 2 | Mar 31 | Mar 28 | Mar 23 | Mar 18 |
| 20°F | Apr 7 | Apr 2 | Mar 31 | Mar 27 | Mar 23 | Mar 21 | Mar 17 | Mar 13 | Mar 8 |
| 16°F | Mar 30 | Mar 24 | Mar 20 | Mar 17 | Mar 14 | Mar 12 | Mar 9 | Mar 5 | Mar 1 |
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 | Sep 24 | Sep 29 | Oct 3 | Oct 5 | Oct 8 | Oct 11 | Oct 14 | Oct 18 | Oct 22 |
| 32°F | Oct 5 | Oct 10 | Oct 14 | Oct 18 | Oct 20 | Oct 23 | Oct 25 | Oct 28 | Nov 1 |
| 28°F | Oct 16 | Oct 21 | Oct 25 | Oct 27 | Oct 30 | Nov 1 | Nov 2 | Nov 7 | Nov 13 |
| 24°F | Oct 28 | Nov 1 | Nov 3 | Nov 6 | Nov 9 | Nov 12 | Nov 15 | Nov 19 | Nov 24 |
| 20°F | Nov 4 | Nov 8 | Nov 12 | Nov 15 | Nov 19 | Nov 22 | Nov 25 | Nov 28 | Dec 3 |
| 16°F | Nov 9 | Nov 16 | Nov 20 | Nov 23 | Nov 26 | Nov 29 | Dec 1 | Dec 6 | Dec 12 |
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 | 177 | 171 | 166 | 161 | 158 | 153 | 149 | 144 | 137 |
| 32°F | 200 | 194 | 188 | 184 | 179 | 175 | 170 | 165 | 158 |
| 28°F | 221 | 214 | 209 | 205 | 201 | 197 | 193 | 188 | 180 |
| 24°F | 243 | 236 | 230 | 226 | 221 | 217 | 212 | 208 | 200 |
| 20°F | 260 | 253 | 247 | 243 | 238 | 235 | 231 | 226 | 218 |
| 16°F | 275 | 269 | 264 | 259 | 255 | 251 | 246 | 241 | 233 |
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
- 7,184
- Cooling degree days, base 65°F
- 634
- Growing degree days, base 40°F
- 4,778
- Growing degree days, base 45°F
- 3,705
- Growing degree days, base 50°F
- 2,748
- Growing degree days, base 55°F
- 1,920
- Growing degree days, base 60°F
- 1,211
Growing degree days by month, base 50°F
Heating and cooling by month
| Month | Heating DD | Cooling DD | Growing DD 50 |
|---|---|---|---|
| January | 1,470 | 0 | 0 |
| February | 1,205 | 0 | 0 |
| March | 958 | 0 | 19 |
| April | 539 | 2 | 73 |
| May | 233 | 33 | 286 |
| June | 36 | 131 | 544 |
| July | 7 | 222 | 680 |
| August | 13 | 179 | 631 |
| September | 141 | 62 | 378 |
| October | 459 | 5 | 123 |
| November | 864 | 0 | 15 |
| December | 1,259 | 0 | 1 |
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 6.6 km from Wauzeka. 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 USC00478164 (Steuben 4 Se). Public domain.