Frost history / Aguila, AZ
Aguila, AZ: frost dates by year
Last spring and first fall frost at NOAA station USC00020060, 1951 to 2015, measured from daily minimum temperatures.
Elevation 2,165 ft, 33.943, -113.188. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 29 | Nov 17 |
| Earliest | Jan 22 (1992) | Oct 22 (1953) |
| Latest | May 8 (1965) | Dec 18 (1977) |
| Trend | 2.9 days earlier per decade | 0.6 days earlier per decade |
| Years with data | 39 | 40 |
At 28°F (hard freeze) the median last spring date is Feb 23 and the median first fall date is Nov 27.
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 |
|---|---|---|---|---|
| 2015 | Jan 23 | Nov 26 | Jan 4 | Nov 27 |
| 2014 | Apr 24 | Nov 25 | Feb 4 | Dec 25 |
| 2013 | Feb 28 | Nov 12 | Feb 28 | Nov 13 |
| 2011 | Apr 28 | no data | Feb 15 | no data |
| 2000 | Feb 27 | no data | Jan 9 | no data |
| 1999 | Apr 10 | Nov 23 | Feb 12 | Nov 23 |
| 1998 | no data | Nov 10 | no data | Dec 8 |
| 1996 | Apr 13 | Oct 22 | Mar 25 | Dec 1 |
| 1995 | Mar 29 | Oct 25 | Jan 27 | Dec 16 |
| 1994 | no data | Nov 12 | no data | Nov 14 |
| 1993 | Feb 22 | Nov 25 | Jan 4 | Nov 27 |
| 1992 | Jan 22 | Nov 12 | Jan 18 | Nov 12 |
| 1991 | Apr 13 | Oct 29 | Jan 31 | Dec 2 |
| 1990 | Mar 14 | Nov 26 | Mar 13 | Nov 26 |
| 1989 | Mar 5 | Nov 30 | Feb 14 | Dec 1 |
| 1988 | no data | Nov 16 | no data | Nov 21 |
| 1987 | no data | Nov 27 | no data | Dec 14 |
| 1986 | Feb 21 | no data | Feb 12 | no data |
| 1985 | Mar 30 | Nov 13 | Mar 30 | Nov 20 |
| 1984 | no data | Nov 9 | no data | Nov 27 |
| 1983 | Apr 14 | Nov 21 | Apr 5 | Nov 21 |
| 1982 | Apr 8 | Nov 3 | Feb 3 | Dec 27 |
| 1981 | Feb 7 | Nov 20 | Feb 6 | Nov 26 |
| 1980 | Apr 3 | Nov 17 | Feb 11 | Nov 17 |
| 1979 | Apr 11 | no data | Feb 24 | no data |
| 1978 | Mar 13 | Nov 17 | none | Dec 6 |
| 1977 | Apr 3 | Dec 18 | Mar 15 | none |
| 1976 | Mar 15 | Nov 28 | Jan 13 | Nov 29 |
| 1975 | May 6 | Oct 25 | Apr 2 | Nov 20 |
| 1974 | no data | Nov 25 | no data | Nov 30 |
| 1969 | Mar 21 | Nov 21 | Mar 19 | Dec 11 |
| 1968 | Apr 19 | Nov 17 | Jan 20 | Nov 30 |
| 1967 | no data | Nov 30 | no data | Dec 13 |
| 1965 | May 8 | no data | Mar 6 | no data |
| 1964 | Apr 25 | Nov 15 | Mar 9 | Nov 15 |
| 1963 | Apr 18 | Dec 7 | Mar 16 | Dec 11 |
| 1962 | Mar 17 | Dec 14 | Mar 15 | Dec 25 |
| 1961 | Feb 25 | Oct 30 | Feb 24 | Nov 18 |
| 1959 | Mar 7 | Nov 27 | Feb 5 | Nov 27 |
| 1957 | Mar 25 | Nov 7 | Feb 1 | Nov 21 |
| 1956 | Apr 15 | Oct 30 | Mar 16 | Nov 2 |
| 1955 | Apr 6 | Nov 15 | Apr 4 | Nov 16 |
| 1954 | Mar 26 | Dec 11 | Mar 14 | Dec 22 |
| 1953 | Apr 10 | Oct 22 | Feb 23 | Oct 24 |
| 1952 | Mar 17 | no data | Mar 3 | no data |
| 1951 | Mar 19 | Nov 25 | Mar 4 | Dec 9 |
"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.