Frost history / Springfield #2, IL
Springfield #2, IL: frost dates by year
Last spring and first fall frost at NOAA station USC00118186, 2004 to 2016, measured from daily minimum temperatures.
Elevation 599 ft, 39.797, -89.677. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 14 | Oct 25 |
| Earliest | Apr 5 (2015) | Oct 5 (2004) |
| Latest | May 4 (2005) | Nov 12 (2016) |
| Trend | 9.8 days earlier per decade | 14.1 days later per decade |
| Years with data | 10 | 12 |
At 28°F (hard freeze) the median last spring date is Mar 31 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 |
|---|---|---|---|---|
| 2016 | Apr 13 | Nov 12 | Apr 10 | Nov 13 |
| 2015 | Apr 5 | Oct 18 | Apr 5 | Nov 9 |
| 2014 | Apr 16 | Nov 1 | Apr 16 | Nov 1 |
| 2013 | Apr 21 | Oct 22 | Apr 20 | Oct 25 |
| 2012 | Apr 13 | Oct 27 | Mar 6 | Nov 4 |
| 2011 | Apr 21 | Oct 22 | Mar 29 | Nov 17 |
| 2010 | Apr 10 | Oct 29 | Mar 27 | Oct 29 |
| 2009 | no data | Oct 18 | no data | Nov 12 |
| 2008 | Apr 16 | no data | Apr 3 | no data |
| 2007 | no data | Oct 28 | no data | Nov 2 |
| 2006 | Apr 10 | Oct 12 | Mar 27 | Oct 24 |
| 2005 | May 4 | Oct 28 | Mar 17 | Nov 17 |
| 2004 | no data | Oct 5 | no data | Nov 13 |
"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 1991–2020 frost probabilities.