Frost history / Wikieup, AZ
Wikieup, AZ: frost dates by year
Last spring and first fall frost at NOAA station USC00029309, 1952 to 2025, measured from daily minimum temperatures.
Elevation 2,010 ft, 34.706, -113.612. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 22 | Nov 17 |
| Earliest | Jan 23 (1992) | Oct 16 (1980) |
| Latest | Apr 30 (1967) | Dec 19 (2017) |
| Trend | 3.4 days earlier per decade | little change (less than half a day per decade) |
| Years with data | 52 | 53, 1 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 27 and the median first fall date is Nov 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 |
|---|---|---|---|---|
| 2025 | Mar 2 | none | Feb 1 | none |
| 2024 | Feb 14 | no data | Jan 13 | no data |
| 2023 | Apr 6 | Oct 28 | Mar 7 | Dec 2 |
| 2022 | Apr 13 | Nov 12 | Feb 24 | Dec 10 |
| 2018 | Mar 2 | Dec 3 | Feb 27 | Dec 30 |
| 2017 | Feb 26 | Dec 19 | Feb 26 | Dec 23 |
| 2016 | Mar 8 | Nov 29 | Feb 3 | Dec 17 |
| 2015 | Jan 23 | Dec 1 | Jan 5 | Dec 13 |
| 2014 | Feb 7 | Dec 15 | Feb 5 | Dec 26 |
| 2013 | Feb 28 | Dec 5 | Feb 27 | Dec 5 |
| 2012 | Mar 21 | Nov 12 | Mar 1 | Nov 12 |
| 2011 | Apr 10 | Nov 7 | Feb 28 | Dec 6 |
| 2010 | Mar 13 | Nov 10 | Jan 25 | Nov 10 |
| 2009 | Apr 17 | Oct 29 | Mar 24 | Dec 2 |
| 1998 | no data | Nov 10 | no data | Nov 10 |
| 1997 | Mar 4 | Nov 15 | Mar 2 | Dec 9 |
| 1996 | Mar 31 | Oct 23 | Mar 14 | Oct 29 |
| 1995 | Mar 27 | Dec 16 | none | Dec 16 |
| 1994 | no data | Nov 5 | no data | Nov 17 |
| 1993 | Mar 4 | Nov 7 | Jan 13 | Nov 26 |
| 1992 | Jan 23 | Nov 22 | Jan 23 | Nov 22 |
| 1991 | Apr 12 | Oct 29 | Feb 1 | Nov 29 |
| 1990 | Mar 16 | Nov 6 | Mar 14 | Nov 28 |
| 1989 | Mar 1 | Dec 1 | Feb 15 | Dec 10 |
| 1988 | Mar 31 | Nov 15 | Mar 16 | Nov 27 |
| 1987 | Apr 5 | no data | Mar 29 | no data |
| 1986 | Mar 14 | Nov 8 | Feb 12 | Nov 8 |
| 1985 | Mar 31 | Nov 13 | Mar 5 | Nov 13 |
| 1984 | Apr 29 | Nov 10 | Apr 27 | Nov 26 |
| 1983 | Apr 14 | Nov 22 | Apr 13 | Nov 22 |
| 1982 | Mar 20 | Dec 2 | Feb 7 | Dec 2 |
| 1981 | Mar 1 | Nov 22 | Feb 8 | Nov 26 |
| 1980 | Apr 3 | Oct 16 | Feb 12 | none |
| 1979 | Apr 12 | Oct 31 | Apr 11 | Nov 20 |
| 1978 | Feb 18 | Nov 28 | Feb 17 | Dec 3 |
| 1977 | Apr 4 | Nov 21 | Apr 1 | none |
| 1976 | Apr 17 | Nov 25 | Mar 5 | Nov 29 |
| 1975 | no data | Nov 17 | no data | Nov 30 |
| 1968 | Apr 19 | Dec 3 | Jan 6 | Dec 6 |
| 1967 | Apr 30 | Nov 29 | Feb 16 | Dec 5 |
| 1966 | Mar 4 | Nov 25 | Mar 4 | Nov 25 |
| 1965 | Mar 6 | Dec 15 | Mar 6 | Dec 24 |
| 1964 | Mar 26 | Nov 13 | Mar 9 | Dec 14 |
| 1963 | Apr 19 | Nov 19 | Mar 16 | Dec 9 |
| 1962 | Mar 18 | Dec 14 | Mar 15 | none |
| 1961 | Mar 26 | Oct 30 | Jan 13 | Nov 19 |
| 1960 | Mar 17 | Nov 28 | Feb 27 | Dec 5 |
| 1959 | Mar 7 | Nov 27 | Feb 7 | Dec 13 |
| 1958 | Mar 11 | Nov 17 | Jan 22 | Nov 17 |
| 1957 | Mar 17 | Nov 8 | Jan 30 | Nov 20 |
| 1956 | Apr 3 | Oct 31 | Mar 16 | Nov 3 |
| 1955 | Apr 21 | Nov 17 | Apr 5 | Nov 19 |
| 1954 | Apr 1 | Nov 30 | Mar 19 | Dec 1 |
| 1953 | Apr 12 | Oct 24 | Apr 12 | Nov 20 |
| 1952 | Mar 23 | Nov 10 | Mar 22 | Nov 17 |
"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.