Frost history / Eloy 4 Ne, AZ
Eloy 4 Ne, AZ: frost dates by year
Last spring and first fall frost at NOAA station USC00022807, 1951 to 2004, measured from daily minimum temperatures.
Elevation 1,545 ft, 32.782, -111.519. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 5 | Nov 23 |
| Earliest | Jan 2 (1976) | Oct 22 (1990) |
| Latest | Apr 12 (1998) | Dec 25 (1982) |
| Trend | 3.2 days earlier per decade | 1.9 days earlier per decade |
| Years with data | 42 | 42, 1 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 5 and the median first fall date is Nov 28.
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 |
|---|---|---|---|---|
| 2004 | no data | Nov 29 | no data | Nov 29 |
| 2001 | Feb 20 | Nov 28 | Feb 18 | Nov 28 |
| 2000 | Feb 2 | Nov 7 | Jan 8 | Nov 16 |
| 1999 | Feb 23 | no data | Feb 11 | no data |
| 1998 | Apr 12 | Dec 2 | Apr 4 | Dec 4 |
| 1997 | Feb 23 | no data | Feb 14 | no data |
| 1996 | Mar 9 | Oct 26 | Jan 24 | Dec 2 |
| 1995 | no data | Nov 27 | no data | Nov 28 |
| 1994 | Feb 24 | Nov 4 | Feb 13 | Nov 20 |
| 1993 | Feb 3 | Nov 26 | Jan 5 | Nov 26 |
| 1992 | Jan 23 | Nov 6 | Jan 17 | Nov 12 |
| 1991 | no data | Oct 29 | no data | Dec 2 |
| 1990 | Mar 16 | Oct 22 | Mar 16 | Nov 8 |
| 1989 | Mar 6 | Nov 3 | Feb 7 | Nov 3 |
| 1988 | Mar 17 | Nov 16 | Mar 14 | Nov 28 |
| 1987 | Mar 28 | Nov 26 | Jan 22 | Nov 27 |
| 1986 | Feb 11 | Dec 1 | none | Dec 11 |
| 1985 | Feb 7 | Nov 15 | Feb 2 | none |
| 1984 | Mar 6 | Nov 26 | Jan 21 | none |
| 1983 | Apr 5 | Nov 24 | Jan 4 | Nov 27 |
| 1982 | Feb 3 | Dec 25 | Feb 2 | Dec 25 |
| 1981 | Feb 2 | Dec 23 | none | Dec 24 |
| 1980 | Feb 11 | Nov 19 | Jan 3 | none |
| 1979 | no data | Nov 2 | no data | Nov 21 |
| 1978 | Feb 13 | Dec 3 | none | Dec 7 |
| 1977 | Jan 12 | no data | Jan 11 | no data |
| 1976 | Jan 2 | no data | Jan 1 | no data |
| 1975 | no data | none | no data | none |
| 1974 | Mar 9 | no data | Feb 20 | no data |
| 1973 | Mar 14 | Nov 26 | Feb 1 | Dec 20 |
| 1972 | Feb 4 | Nov 21 | Feb 3 | Dec 10 |
| 1967 | Mar 6 | no data | Jan 10 | no data |
| 1966 | Mar 5 | Dec 9 | Mar 5 | Dec 10 |
| 1965 | Mar 5 | Nov 29 | Mar 4 | none |
| 1964 | Mar 9 | Nov 16 | Feb 17 | Dec 14 |
| 1963 | Mar 5 | Dec 13 | Jan 21 | Dec 13 |
| 1962 | Mar 15 | Nov 19 | Feb 28 | none |
| 1961 | Jan 12 | Nov 22 | none | none |
| 1960 | Mar 15 | Dec 6 | Feb 25 | Dec 6 |
| 1959 | Feb 26 | Nov 28 | Feb 10 | Dec 28 |
| 1958 | Mar 10 | Nov 17 | Jan 22 | Nov 17 |
| 1957 | Mar 24 | Nov 23 | none | Nov 23 |
| 1956 | Mar 16 | Nov 3 | Feb 5 | Nov 3 |
| 1955 | Mar 22 | Nov 16 | Mar 21 | Nov 24 |
| 1954 | Mar 14 | Dec 12 | Jan 16 | Dec 17 |
| 1953 | Mar 5 | Nov 19 | Feb 21 | Nov 21 |
| 1952 | Mar 23 | Nov 19 | Feb 15 | Nov 26 |
| 1951 | no data | Nov 26 | no data | Dec 8 |
"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.