Albany Frost Dates and Growing Season
Frost and the growing season
NOAA's 1991-2020 freeze probabilities for Clinton #1. 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 16, a growing season of about 175 days.
- Median at 36°F
- last May 2, first October 6
- Median at 32°F
- last April 22, first October 16
- Median at 28°F
- last April 13, first October 25
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 17 | May 12 | May 8 | May 5 | May 2 | Apr 30 | Apr 27 | Apr 23 | Apr 18 |
| 32°F | May 8 | May 2 | Apr 29 | Apr 26 | Apr 22 | Apr 19 | Apr 17 | Apr 14 | Apr 9 |
| 28°F | Apr 29 | Apr 23 | Apr 19 | Apr 16 | Apr 13 | Apr 10 | Apr 8 | Apr 4 | Mar 31 |
| 24°F | Apr 18 | Apr 12 | Apr 8 | Apr 5 | Apr 2 | Mar 31 | Mar 28 | Mar 23 | Mar 17 |
| 20°F | Apr 6 | Apr 1 | Mar 29 | Mar 25 | Mar 21 | Mar 18 | Mar 14 | Mar 9 | Mar 4 |
| 16°F | Mar 28 | Mar 22 | Mar 19 | Mar 16 | Mar 13 | Mar 9 | Mar 5 | Mar 2 | Feb 26 |
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 23 | Sep 28 | Oct 1 | Oct 4 | Oct 6 | Oct 9 | Oct 11 | Oct 14 | Oct 18 |
| 32°F | Oct 2 | Oct 7 | Oct 11 | Oct 13 | Oct 16 | Oct 19 | Oct 21 | Oct 24 | Oct 28 |
| 28°F | Oct 11 | Oct 17 | Oct 20 | Oct 23 | Oct 25 | Oct 27 | Oct 30 | Nov 2 | Nov 5 |
| 24°F | Oct 24 | Oct 28 | Oct 31 | Nov 1 | Nov 4 | Nov 6 | Nov 9 | Nov 13 | Nov 18 |
| 20°F | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 16 | Nov 20 | Nov 24 | Nov 29 |
| 16°F | Nov 6 | Nov 11 | Nov 15 | Nov 19 | Nov 22 | Nov 25 | Nov 28 | Dec 2 | Dec 8 |
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 | 174 | 168 | 164 | 160 | 156 | 152 | 148 | 142 | 134 |
| 32°F | 193 | 187 | 182 | 179 | 175 | 171 | 166 | 161 | 155 |
| 28°F | 215 | 208 | 204 | 199 | 195 | 191 | 186 | 181 | 175 |
| 24°F | 238 | 230 | 225 | 220 | 217 | 213 | 208 | 203 | 195 |
| 20°F | 260 | 253 | 247 | 242 | 238 | 233 | 228 | 223 | 216 |
| 16°F | 276 | 269 | 264 | 259 | 256 | 251 | 246 | 240 | 234 |
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
- 6,265
- Cooling degree days, base 65°F
- 918
- Growing degree days, base 40°F
- 5,468
- Growing degree days, base 45°F
- 4,316
- Growing degree days, base 50°F
- 3,282
- Growing degree days, base 55°F
- 2,367
- Growing degree days, base 60°F
- 1,576
Growing degree days by month, base 50°F
Heating and cooling by month
| Month | Heating DD | Cooling DD | Growing DD 50 |
|---|---|---|---|
| January | 1,337 | 0 | 0 |
| February | 1,082 | 0 | 2 |
| March | 819 | 2 | 31 |
| April | 428 | 9 | 131 |
| May | 159 | 68 | 381 |
| June | 19 | 202 | 633 |
| July | 2 | 292 | 755 |
| August | 8 | 231 | 688 |
| September | 94 | 101 | 461 |
| October | 384 | 14 | 173 |
| November | 773 | 0 | 26 |
| December | 1,161 | 0 | 2 |
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 3.8 km from Albany. 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 USC00131635 (Clinton #1). Public domain.