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Will it freeze in Aberdeen in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 28°F (Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST).
Tonight: forecast low 28°F. Hard freeze.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
7 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 28°F Hard freeze · Mostly Cloudy
- Fri, Nov 6 25°F Hard freeze · Partly Cloudy
- Sat, Nov 7 31°F Freeze · Mostly Clear
- Sun, Nov 8 35°F Frost possible · Mostly Clear
- Mon, Nov 9 31°F Freeze · Partly Cloudy
- Tue, Nov 10 33°F Frost possible · Partly Cloudy
- Wed, Nov 11 34°F Frost possible · Partly Cloudy
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Aberdeen
The median first fall hard-freeze date (28°F) is October 7, from NOAA’s 1991–2020 Climate Normals at Aberdeen 3 E. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | May 5 · May 18 · May 31 | Sep 8 · Sep 21 · Sep 30 | 125 days |
| 32°F freeze | Apr 25 · May 8 · May 21 | Sep 17 · Sep 29 · Oct 11 | 144 days |
| 28°F hard freeze | Apr 13 · Apr 29 · May 12 | Sep 25 · Oct 7 · Oct 20 | 162 days |
Average high temperature by month
1991–2020 normals at Aberdeen 3 E
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Aberdeen, SD come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Aberdeen 3 E (station USC00390022, elevation 1,301 ft), 2.7 mi from Aberdeen. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Aberdeen
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Watertown, SD | 75 mi | May 7 | Sep 30 |
| Huron, SD | 77 mi | May 6 | Oct 2 |
| Jamestown, ND | 100 mi | May 8 | Sep 29 |
| Valley City, ND | 103 mi | May 13 | Sep 26 |
| Wahpeton, ND | 105 mi | May 4 | Oct 3 |
| Brookings, SD | 115 mi | May 6 | Oct 1 |
| Horace, ND | 116 mi | May 4 | Oct 2 |
| Pierre, SD | 118 mi | May 6 | Oct 3 |
| Madison, SD | 121 mi | May 5 | Sep 30 |
| West Fargo, ND | 122 mi | May 4 | Oct 2 |
Frequently asked questions
When is the last frost in Aberdeen?
On average, the last spring frost (32°F) in Aberdeen is around May 8. In about 1 year in 10 it comes after May 21, and in 9 years in 10 it comes after April 25.
When is the first frost in Aberdeen?
The first fall frost (32°F) usually arrives around September 29. There’s a 10% chance of a freeze by September 17 and a 90% chance by October 11.
Can it frost in Aberdeen after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after May 18.
What growing zone is Aberdeen?
Aberdeen is in USDA Plant Hardiness Zone 4a (average annual extreme minimum temperature −30 to −25°F), based on the 2023 USDA map for ZIP code 57401. See growing zones in South Dakota.
More: all South Dakota frost dates · South Dakota growing zones · UV index today in Aberdeen · frost vs. freeze