Frost history / Manderson 3 Ne, SD
Manderson 3 Ne, SD: frost dates by year
Last spring and first fall frost at NOAA station USC00395154, 1989 to 2003, measured from daily minimum temperatures.
Elevation 3,095 ft, 43.263, -102.439. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 12 | Sep 27 |
| Earliest | May 1 (1994) | Sep 10 (1989) |
| Latest | May 26 (1992) | Oct 23 (1994) |
| Trend | 8.0 days later per decade | 2.2 days later per decade |
| Years with data | 14 | 12 |
At 28°F (hard freeze) the median last spring date is May 4 and the median first fall date is Oct 7.
The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.
Chart
Last spring frost (32°F)
First fall frost (32°F)
Dots are single years. The gray line is the median, the green line the fitted trend.
Year by year
| Year | Last spring 32°F | First fall 32°F | Last spring 28°F | First fall 28°F |
|---|---|---|---|---|
| 2003 | May 20 | Sep 18 | May 20 | Oct 1 |
| 2002 | May 25 | no data | May 24 | no data |
| 2001 | May 23 | Oct 5 | Apr 23 | Oct 15 |
| 2000 | May 13 | Sep 23 | May 13 | Oct 5 |
| 1999 | May 12 | Sep 27 | Apr 23 | Sep 28 |
| 1998 | May 8 | Oct 5 | May 7 | Nov 4 |
| 1997 | May 19 | Oct 10 | May 3 | Oct 13 |
| 1996 | May 11 | Sep 26 | May 5 | Sep 26 |
| 1995 | May 4 | Sep 20 | Apr 27 | Sep 21 |
| 1994 | May 1 | Oct 23 | Apr 29 | Oct 24 |
| 1993 | May 3 | no data | Apr 21 | no data |
| 1992 | May 26 | no data | Apr 26 | no data |
| 1991 | May 6 | Sep 18 | May 6 | Sep 18 |
| 1990 | May 17 | Oct 7 | May 10 | Oct 9 |
| 1989 | no data | Sep 10 | no data | Oct 17 |
"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.