Frost history / Sedona, AZ
Sedona, AZ: frost dates by year
Last spring and first fall frost at NOAA station USC00027708, 1951 to 2010, measured from daily minimum temperatures.
Elevation 4,220 ft, 34.896, -111.764. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 19 | Nov 2 |
| Earliest | Mar 5 (1993) | Sep 21 (1968) |
| Latest | May 25 (1980) | Dec 3 (2008) |
| Trend | 2.1 days earlier per decade | 3.4 days later per decade |
| Years with data | 53 | 52 |
At 28°F (hard freeze) the median last spring date is Mar 30 and the median first fall date is Nov 18.
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 |
|---|---|---|---|---|
| 2010 | Apr 23 | no data | Mar 11 | no data |
| 2009 | no data | Oct 28 | no data | Oct 29 |
| 2008 | Apr 17 | Dec 3 | Mar 18 | Dec 9 |
| 2007 | Apr 20 | Nov 23 | Mar 29 | Nov 23 |
| 2006 | Mar 29 | Nov 29 | Mar 22 | Nov 30 |
| 2005 | Apr 5 | Nov 19 | Jan 13 | Nov 28 |
| 2004 | Apr 5 | Nov 1 | Apr 5 | Nov 2 |
| 2003 | Apr 12 | Nov 4 | Apr 5 | Nov 26 |
| 2002 | Mar 19 | Nov 5 | Mar 19 | Dec 19 |
| 2001 | Apr 21 | Nov 15 | Mar 11 | Nov 25 |
| 2000 | Apr 16 | Oct 31 | Mar 2 | Nov 8 |
| 1999 | Apr 30 | Nov 22 | Apr 8 | Nov 22 |
| 1998 | Apr 17 | Nov 10 | Mar 30 | Dec 6 |
| 1997 | Apr 11 | Oct 25 | Mar 4 | Oct 25 |
| 1996 | Mar 28 | Oct 26 | Mar 24 | Nov 30 |
| 1995 | Apr 22 | Nov 28 | Mar 25 | Nov 28 |
| 1994 | Apr 29 | Nov 4 | Feb 23 | Nov 4 |
| 1993 | Mar 5 | Nov 18 | Feb 11 | Nov 25 |
| 1992 | Mar 10 | Nov 7 | Jan 24 | Nov 12 |
| 1991 | Apr 12 | Oct 28 | Apr 12 | Oct 31 |
| 1989 | no data | Oct 27 | no data | Nov 5 |
| 1988 | May 2 | Nov 15 | Apr 1 | Nov 16 |
| 1987 | Apr 6 | Nov 17 | Mar 30 | Nov 27 |
| 1986 | Apr 3 | Nov 7 | Feb 12 | Nov 7 |
| 1985 | Mar 30 | Nov 1 | Mar 30 | Nov 13 |
| 1984 | Apr 27 | Oct 16 | Mar 18 | Nov 26 |
| 1983 | Apr 14 | Nov 19 | Apr 4 | Nov 23 |
| 1982 | Apr 8 | Oct 12 | Mar 21 | Dec 2 |
| 1981 | Apr 4 | Oct 16 | Mar 23 | Nov 26 |
| 1980 | May 25 | Oct 27 | Apr 3 | Nov 17 |
| 1979 | May 10 | Oct 30 | Apr 11 | Oct 31 |
| 1978 | May 6 | Nov 6 | Apr 17 | Nov 16 |
| 1977 | May 18 | Nov 8 | Apr 4 | Nov 9 |
| 1976 | Apr 19 | Nov 15 | Mar 8 | Nov 28 |
| 1975 | May 22 | Oct 24 | May 7 | Nov 19 |
| 1974 | May 20 | Oct 30 | Apr 11 | Nov 4 |
| 1973 | no data | Oct 10 | no data | Oct 30 |
| 1972 | no data | Oct 26 | no data | Nov 1 |
| 1970 | May 1 | Oct 8 | Apr 29 | Oct 26 |
| 1969 | Apr 29 | Oct 13 | Apr 7 | Nov 18 |
| 1968 | May 7 | Sep 21 | Apr 24 | Oct 16 |
| 1967 | May 2 | Oct 30 | May 1 | Nov 30 |
| 1966 | Apr 20 | Oct 14 | Mar 4 | Nov 26 |
| 1965 | May 8 | Oct 17 | May 8 | Dec 18 |
| 1964 | May 8 | Nov 12 | Apr 26 | Nov 16 |
| 1963 | Apr 27 | no data | Apr 19 | no data |
| 1962 | Mar 25 | Nov 17 | Mar 25 | Nov 19 |
| 1961 | Apr 11 | Oct 10 | Apr 11 | Oct 30 |
| 1960 | Apr 24 | Nov 14 | Apr 24 | Nov 15 |
| 1959 | May 5 | Oct 31 | Mar 5 | Dec 6 |
| 1957 | Apr 22 | no data | Feb 1 | no data |
| 1956 | Apr 15 | Nov 2 | Mar 16 | Nov 2 |
| 1955 | Apr 19 | no data | Apr 19 | no data |
| 1954 | Mar 26 | Oct 25 | Mar 26 | Dec 17 |
| 1953 | Apr 12 | Nov 19 | Apr 12 | Nov 19 |
| 1952 | Mar 25 | Nov 10 | Mar 23 | Nov 10 |
| 1951 | Apr 11 | no data | Apr 1 | 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 1991–2020 frost probabilities.