Frost history / Traverse City Munson, MI
Traverse City Munson, MI: frost dates by year
Last spring and first fall frost at NOAA station USC00208249, 2002 to 2021, measured from daily minimum temperatures.
Elevation 635 ft, 44.761, -85.644. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 14 | Oct 18 |
| Earliest | Apr 18 (2007) | Oct 2 (2003) |
| Latest | May 28 (2008) | Nov 9 (2004) |
| Trend | 1.4 days earlier per decade | 1.0 days later per decade |
| Years with data | 20 | 19 |
At 28°F (hard freeze) the median last spring date is Apr 22 and the median first fall date is Nov 6.
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 |
|---|---|---|---|---|
| 2021 | May 14 | no data | Apr 23 | no data |
| 2020 | May 14 | Oct 16 | May 14 | Oct 31 |
| 2019 | May 13 | Oct 15 | Apr 22 | Oct 26 |
| 2018 | May 12 | Oct 18 | Apr 30 | Oct 18 |
| 2017 | May 9 | Oct 26 | May 9 | Nov 8 |
| 2016 | May 16 | Oct 26 | Apr 27 | Nov 20 |
| 2015 | May 20 | Oct 17 | Apr 25 | Nov 22 |
| 2014 | May 17 | Oct 19 | Apr 20 | Oct 22 |
| 2013 | May 13 | Oct 23 | May 13 | Oct 29 |
| 2012 | May 1 | Oct 8 | Apr 22 | Nov 6 |
| 2011 | May 4 | Oct 28 | Apr 3 | Nov 17 |
| 2010 | May 10 | Oct 4 | Apr 10 | Nov 7 |
| 2009 | May 11 | Oct 11 | Apr 23 | Nov 6 |
| 2008 | May 28 | Oct 22 | Apr 15 | Oct 22 |
| 2007 | Apr 18 | Oct 25 | Apr 16 | Nov 19 |
| 2006 | May 22 | Oct 12 | Apr 11 | Oct 26 |
| 2005 | May 17 | Oct 21 | Mar 28 | Nov 11 |
| 2004 | May 4 | Nov 9 | Apr 14 | Nov 9 |
| 2003 | May 22 | Oct 2 | Apr 27 | Nov 7 |
| 2002 | May 25 | Oct 14 | May 19 | Oct 29 |
"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.