Frost history / Minnesota City Dam 5, MN
Minnesota City Dam 5, MN: frost dates by year
Last spring and first fall frost at NOAA station USC00215488, 1992 to 2024, measured from daily minimum temperatures.
Elevation 670 ft, 44.160, -91.812. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 24 | Oct 22 |
| Earliest | Mar 24 (1998) | Oct 3 (1996) |
| Latest | May 21 (1997) | Nov 12 (2016) |
| Trend | little change (less than half a day per decade) | 2.7 days later per decade |
| Years with data | 22 | 19 |
At 28°F (hard freeze) the median last spring date is Apr 6 and the median first fall date is Oct 30.
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 |
|---|---|---|---|---|
| 2024 | Apr 7 | no data | Mar 30 | no data |
| 2023 | Apr 25 | Oct 29 | Apr 7 | Oct 30 |
| 2022 | Apr 28 | Oct 18 | Apr 18 | Oct 18 |
| 2021 | Apr 26 | Nov 3 | Apr 2 | Nov 16 |
| 2020 | May 10 | Oct 19 | Apr 17 | Oct 19 |
| 2019 | Apr 16 | Oct 25 | Mar 31 | Oct 26 |
| 2018 | Apr 20 | Oct 13 | Apr 20 | Oct 21 |
| 2017 | Apr 7 | Oct 29 | Mar 22 | Nov 1 |
| 2016 | May 15 | Nov 12 | Apr 12 | Nov 20 |
| 2015 | Apr 24 | Oct 17 | Mar 28 | Nov 20 |
| 2014 | Apr 18 | Oct 31 | Apr 18 | Nov 1 |
| 2013 | Apr 24 | Oct 21 | Apr 20 | Oct 22 |
| 2012 | Apr 12 | Oct 12 | Mar 9 | Oct 12 |
| 2011 | Apr 17 | Oct 21 | Mar 30 | Nov 4 |
| 1999 | Mar 26 | no data | Mar 26 | no data |
| 1998 | Mar 24 | Oct 22 | Mar 24 | Nov 4 |
| 1997 | May 21 | Oct 22 | Apr 13 | Oct 27 |
| 1996 | Apr 26 | Oct 3 | Apr 9 | Oct 30 |
| 1995 | Apr 23 | Oct 22 | Apr 5 | Nov 3 |
| 1994 | May 1 | Nov 1 | Apr 7 | Nov 1 |
| 1993 | Apr 21 | Oct 10 | Apr 5 | Oct 30 |
| 1992 | Apr 28 | no data | Apr 28 | no data |
"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.