Frost history / Ramsey, IL
Ramsey, IL: frost dates by year
Last spring and first fall frost at NOAA station USC00117126, 1991 to 2022, measured from daily minimum temperatures.
Elevation 600 ft, 39.148, -89.102. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 14 | Oct 14 |
| Earliest | Mar 23 (2017) | Sep 20 (1991) |
| Latest | May 5 (2005) | Nov 10 (2016) |
| Trend | little change (less than half a day per decade) | 6.4 days later per decade |
| Years with data | 31 | 29 |
At 28°F (hard freeze) the median last spring date is Apr 3 and the median first fall date is Oct 29.
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 |
|---|---|---|---|---|
| 2022 | Apr 19 | no data | Mar 29 | no data |
| 2021 | Apr 23 | Nov 3 | Apr 22 | Nov 3 |
| 2020 | Apr 19 | Oct 5 | Apr 18 | Oct 5 |
| 2019 | Apr 15 | Oct 12 | Apr 2 | Nov 1 |
| 2018 | Apr 29 | Oct 16 | Apr 17 | Oct 18 |
| 2017 | Mar 23 | Oct 29 | Mar 20 | Oct 29 |
| 2016 | Apr 14 | Nov 10 | Apr 10 | Nov 12 |
| 2015 | Apr 5 | no data | Mar 29 | no data |
| 2014 | Apr 17 | Oct 30 | Mar 30 | Nov 2 |
| 2013 | Apr 21 | Oct 22 | Apr 3 | Oct 22 |
| 2012 | Apr 13 | Oct 8 | Apr 12 | Nov 4 |
| 2011 | Apr 1 | Oct 22 | Mar 29 | Nov 11 |
| 2010 | Apr 10 | Oct 22 | Mar 27 | Oct 29 |
| 2009 | Apr 10 | Oct 11 | Mar 31 | Nov 12 |
| 2008 | Apr 16 | Oct 28 | Apr 2 | Oct 28 |
| 2007 | no data | Oct 29 | no data | Nov 1 |
| 2006 | Apr 10 | Oct 8 | Apr 9 | Oct 15 |
| 2005 | May 5 | Oct 28 | Mar 17 | Nov 17 |
| 2004 | Apr 14 | Oct 3 | Mar 23 | Nov 25 |
| 2003 | Apr 11 | Oct 2 | Mar 31 | Oct 2 |
| 2002 | Apr 7 | Oct 14 | Apr 5 | Oct 14 |
| 2001 | Apr 19 | Oct 7 | Apr 18 | Oct 28 |
| 2000 | Apr 14 | Oct 7 | Apr 8 | Nov 10 |
| 1999 | Mar 28 | Oct 5 | Mar 28 | Oct 24 |
| 1998 | Apr 5 | Oct 22 | Mar 24 | Nov 5 |
| 1997 | Apr 18 | no data | Apr 17 | no data |
| 1996 | Apr 15 | Oct 11 | Apr 10 | Nov 2 |
| 1995 | Apr 6 | Sep 23 | Apr 6 | Sep 23 |
| 1994 | May 2 | Oct 25 | Apr 7 | Oct 27 |
| 1993 | Apr 22 | Oct 10 | Apr 3 | Oct 28 |
| 1992 | Apr 28 | Oct 17 | Apr 5 | Oct 17 |
| 1991 | Mar 31 | Sep 20 | Mar 30 | Oct 16 |
"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.