Frost history / Punkin Ctr, AZ
Punkin Ctr, AZ: frost dates by year
Last spring and first fall frost at NOAA station USC00026840, 1973 to 2012, measured from daily minimum temperatures.
Elevation 2,325 ft, 33.856, -111.306. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 15 | Nov 14 |
| Earliest | Jan 30 (1991) | Oct 25 (1975) |
| Latest | May 6 (1975) | Dec 6 (2011) |
| Trend | 6.9 days earlier per decade | 2.3 days later per decade |
| Years with data | 29 | 24 |
At 28°F (hard freeze) the median last spring date is Feb 17 and the median first fall date is Nov 24.
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 |
|---|---|---|---|---|
| 2012 | Mar 20 | no data | Mar 3 | no data |
| 2011 | Apr 10 | Dec 6 | Feb 13 | Dec 6 |
| 2010 | Feb 24 | Nov 13 | Jan 5 | Nov 26 |
| 2009 | no data | Oct 29 | no data | Nov 16 |
| 2008 | Mar 7 | no data | Feb 2 | no data |
| 2007 | Mar 2 | no data | Jan 24 | no data |
| 2006 | Mar 14 | no data | Mar 14 | no data |
| 2005 | Mar 16 | no data | none | no data |
| 2004 | Feb 16 | Nov 3 | Feb 15 | Nov 30 |
| 2003 | Feb 11 | Nov 23 | Feb 10 | Nov 24 |
| 2002 | Mar 15 | Nov 18 | Mar 15 | Dec 19 |
| 2001 | Feb 26 | Nov 23 | Feb 13 | Nov 26 |
| 2000 | Mar 8 | Nov 13 | Jan 12 | Nov 17 |
| 1992 | Jan 30 | no data | Jan 18 | no data |
| 1991 | Jan 30 | Oct 29 | Jan 30 | Nov 24 |
| 1990 | Mar 15 | Nov 27 | Mar 15 | Nov 28 |
| 1989 | Mar 4 | no data | Feb 8 | no data |
| 1988 | Apr 1 | Nov 16 | Mar 13 | Nov 19 |
| 1987 | Mar 31 | Nov 16 | Feb 28 | Nov 27 |
| 1986 | Apr 9 | Nov 8 | Feb 12 | Dec 1 |
| 1985 | Apr 1 | no data | Mar 30 | no data |
| 1984 | Mar 29 | Nov 12 | Mar 6 | Nov 26 |
| 1983 | Apr 15 | Nov 19 | Jan 23 | Nov 24 |
| 1982 | no data | Oct 29 | no data | Dec 3 |
| 1981 | Feb 25 | Nov 20 | Feb 25 | Nov 20 |
| 1980 | Apr 3 | Oct 30 | Feb 13 | Nov 17 |
| 1979 | Apr 11 | Oct 31 | Feb 18 | Nov 20 |
| 1978 | Feb 23 | Nov 28 | Feb 20 | Dec 3 |
| 1977 | Apr 4 | no data | Apr 3 | no data |
| 1976 | no data | Nov 14 | no data | Nov 14 |
| 1975 | May 6 | Oct 25 | Apr 2 | Nov 14 |
| 1974 | Mar 11 | Nov 24 | Mar 7 | Nov 24 |
| 1973 | no data | Oct 29 | no data | Nov 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.