Frost history / Dennison Wtr Wks, OH
Dennison Wtr Wks, OH: frost dates by year
Last spring and first fall frost at NOAA station USC00332160, 1988 to 2025, measured from daily minimum temperatures.
Elevation 860 ft, 40.406, -81.344. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 2 | Oct 18 |
| Earliest | Apr 3 (2019) | Sep 3 (1997) |
| Latest | Jun 2 (2003) | Nov 3 (2021) |
| Trend | 2.6 days earlier per decade | 8.5 days later per decade |
| Years with data | 29 | 31 |
At 28°F (hard freeze) the median last spring date is Apr 18 and the median first fall date is Oct 28.
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 |
|---|---|---|---|---|
| 2025 | Apr 18 | Oct 26 | Apr 18 | Nov 11 |
| 2024 | Apr 26 | Oct 27 | Apr 8 | Oct 29 |
| 2023 | Apr 29 | Oct 23 | Apr 9 | Oct 31 |
| 2022 | Apr 30 | Oct 9 | Apr 28 | Nov 19 |
| 2021 | May 2 | Nov 3 | Apr 24 | Nov 4 |
| 2020 | May 13 | Oct 17 | May 9 | Nov 1 |
| 2019 | Apr 3 | Oct 19 | Apr 3 | Nov 2 |
| 2018 | May 1 | Oct 18 | Apr 21 | Oct 22 |
| 2017 | May 10 | Nov 1 | Apr 9 | Nov 9 |
| 2016 | May 17 | Oct 25 | Apr 14 | Nov 12 |
| 2015 | Apr 25 | Oct 18 | Apr 25 | Oct 18 |
| 2014 | Apr 24 | Oct 27 | Apr 17 | Nov 3 |
| 2013 | May 27 | Oct 25 | Apr 21 | Oct 25 |
| 2012 | Apr 12 | Oct 7 | Apr 11 | Nov 5 |
| 2011 | Apr 20 | Oct 30 | Apr 20 | Nov 6 |
| 2010 | May 10 | Oct 17 | Mar 31 | Oct 18 |
| 2009 | May 17 | Oct 17 | Apr 12 | Oct 17 |
| 2008 | Apr 16 | Oct 18 | Apr 15 | Oct 29 |
| 2007 | Apr 14 | Oct 28 | Apr 10 | Oct 28 |
| 2006 | May 6 | no data | Apr 9 | no data |
| 2005 | May 4 | Oct 26 | Mar 22 | Oct 29 |
| 2004 | May 4 | Oct 17 | Apr 27 | Nov 8 |
| 2003 | Jun 2 | Oct 2 | Apr 27 | Oct 2 |
| 2002 | no data | Oct 7 | no data | Oct 19 |
| 1997 | no data | Sep 3 | no data | Sep 21 |
| 1995 | May 7 | no data | Apr 26 | no data |
| 1994 | no data | Sep 29 | no data | Oct 3 |
| 1993 | May 21 | Sep 30 | May 20 | Oct 2 |
| 1992 | May 25 | Sep 23 | May 7 | Oct 16 |
| 1991 | Apr 17 | Sep 20 | Apr 11 | Oct 7 |
| 1990 | Apr 19 | Oct 19 | Apr 19 | Oct 19 |
| 1989 | May 3 | Sep 23 | Apr 24 | Oct 8 |
| 1988 | no data | Oct 5 | no data | Oct 5 |
"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.