Frost history / Dora 3SE, MO
Dora 3SE, MO: frost dates by year
Last spring and first fall frost at NOAA station USC00232302, 1964 to 2017, measured from daily minimum temperatures.
Elevation 966 ft, 36.740, -92.209. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 14 | Oct 19 |
| Earliest | Mar 16 (2017) | Sep 23 (1995) |
| Latest | May 12 (1989) | Nov 10 (2016) |
| Trend | 3.7 days earlier per decade | 2.0 days later per decade |
| Years with data | 32 | 35 |
At 28°F (hard freeze) the median last spring date is Apr 5 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 |
|---|---|---|---|---|
| 2017 | Mar 16 | no data | Mar 16 | no data |
| 2016 | Mar 27 | Nov 10 | Mar 22 | Nov 14 |
| 2015 | Apr 6 | Oct 30 | Mar 7 | Nov 22 |
| 2014 | no data | Nov 1 | no data | Nov 1 |
| 2013 | no data | Oct 25 | no data | Oct 25 |
| 2011 | Apr 6 | Oct 21 | Apr 5 | Oct 21 |
| 2010 | Apr 28 | Oct 29 | Mar 27 | Oct 29 |
| 2009 | no data | Oct 18 | no data | Oct 18 |
| 2008 | no data | Oct 27 | no data | Oct 28 |
| 2004 | Apr 14 | Oct 15 | Apr 1 | Nov 25 |
| 2003 | Apr 10 | Oct 27 | Apr 10 | Nov 24 |
| 2002 | Apr 6 | Oct 14 | Apr 5 | Nov 17 |
| 2001 | Apr 18 | Oct 17 | Apr 18 | Oct 17 |
| 2000 | no data | Oct 8 | no data | Oct 8 |
| 1999 | Apr 18 | no data | Mar 27 | no data |
| 1998 | Apr 11 | Oct 23 | Mar 22 | Dec 9 |
| 1997 | Apr 24 | Oct 18 | Apr 14 | Oct 28 |
| 1996 | Apr 10 | Oct 19 | Apr 6 | Nov 2 |
| 1995 | Apr 5 | Sep 23 | Mar 10 | Nov 3 |
| 1994 | Apr 7 | Oct 26 | Apr 7 | Oct 26 |
| 1993 | Apr 22 | Oct 22 | Apr 22 | Oct 30 |
| 1992 | May 7 | Oct 11 | Apr 3 | Nov 4 |
| 1991 | Mar 31 | no data | Mar 31 | no data |
| 1990 | Apr 14 | Oct 11 | Apr 14 | Oct 23 |
| 1989 | May 12 | no data | May 7 | no data |
| 1988 | Apr 28 | Oct 5 | Apr 21 | Oct 5 |
| 1981 | Apr 6 | Oct 19 | Apr 5 | Oct 24 |
| 1980 | no data | Oct 5 | no data | Oct 25 |
| 1979 | no data | Oct 5 | no data | Oct 5 |
| 1978 | Apr 21 | Oct 6 | Mar 26 | Oct 27 |
| 1977 | Apr 26 | Nov 10 | Mar 22 | Nov 10 |
| 1976 | May 4 | Oct 9 | Mar 24 | Oct 17 |
| 1975 | Apr 16 | Oct 3 | Apr 13 | Oct 19 |
| 1974 | Apr 17 | Nov 5 | Apr 10 | Nov 14 |
| 1973 | Apr 28 | Oct 29 | Apr 11 | Nov 6 |
| 1972 | no data | Oct 19 | no data | Nov 22 |
| 1971 | Apr 14 | Nov 3 | Apr 14 | Nov 4 |
| 1970 | Apr 7 | Oct 10 | Apr 3 | Nov 5 |
| 1969 | May 11 | Oct 15 | Mar 31 | Oct 28 |
| 1964 | Apr 9 | no data | Apr 9 | no data |
"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.