Frost history / Houghton Lake 2NW, MI
Houghton Lake 2NW, MI: frost dates by year
Last spring and first fall frost at NOAA station USC00203930, 2000 to 2013, measured from daily minimum temperatures.
Elevation 1,161 ft, 44.312, -84.775. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 23 | Sep 29 |
| Earliest | May 6 (2011) | Aug 21 (2004) |
| Latest | Jun 4 (2009) | Oct 17 (2005) |
| Trend | 6.9 days earlier per decade | 2.6 days earlier per decade |
| Years with data | 13 | 13 |
At 28°F (hard freeze) the median last spring date is May 14 and the median first fall date is Oct 5.
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 |
|---|---|---|---|---|
| 2013 | Jun 3 | no data | May 14 | no data |
| 2012 | May 17 | Sep 19 | May 17 | Oct 8 |
| 2011 | May 6 | Sep 16 | May 5 | Oct 2 |
| 2010 | May 11 | Sep 27 | May 10 | Oct 4 |
| 2009 | Jun 4 | Oct 1 | May 18 | Oct 1 |
| 2008 | May 28 | Oct 3 | May 19 | Oct 5 |
| 2007 | May 18 | Oct 12 | Apr 18 | Oct 13 |
| 2006 | May 23 | Sep 29 | May 23 | Oct 12 |
| 2005 | May 18 | Oct 17 | May 17 | Oct 21 |
| 2004 | May 29 | Aug 21 | May 4 | Sep 30 |
| 2003 | Jun 1 | Oct 1 | May 5 | Oct 1 |
| 2002 | May 22 | Sep 25 | May 20 | Oct 14 |
| 2001 | May 31 | Oct 6 | Apr 20 | Oct 7 |
| 2000 | no data | Sep 25 | no data | Sep 25 |
"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.