Frost history / San Pasqual Animal Pk, CA
San Pasqual Animal Pk, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00047874, 1981 to 2009, measured from daily minimum temperatures.
Elevation 420 ft, 33.096, -116.998. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Feb 9 | Nov 30 |
| Earliest | Jan 4 (1993) | Nov 3 (1990) |
| Latest | Apr 10 (1999) | Dec 27 (2008) |
| Trend | 6.5 days later per decade | 3.3 days later per decade |
| Years with data | 26, 2 with no freeze | 24 |
At 28°F (hard freeze) the median last spring date is Jan 20 and the median first fall date is Dec 13.
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 |
|---|---|---|---|---|
| 2009 | Feb 11 | Dec 23 | none | none |
| 2008 | no data | Dec 27 | no data | Dec 29 |
| 2007 | Feb 25 | Dec 14 | Jan 21 | none |
| 2006 | no data | Dec 1 | no data | Dec 5 |
| 2005 | none | Nov 28 | none | Dec 4 |
| 2004 | Feb 16 | Nov 30 | Jan 6 | Nov 30 |
| 2003 | Feb 6 | no data | none | no data |
| 2002 | Mar 5 | no data | Mar 4 | no data |
| 2001 | Feb 8 | Nov 27 | Jan 19 | Dec 16 |
| 2000 | Mar 31 | Nov 12 | Jan 9 | Dec 23 |
| 1999 | Apr 10 | Nov 23 | Feb 13 | Nov 23 |
| 1998 | Jan 8 | Dec 7 | none | Dec 7 |
| 1997 | Jan 8 | Dec 10 | none | Dec 11 |
| 1996 | Jan 4 | Nov 30 | none | none |
| 1995 | none | Dec 18 | none | none |
| 1994 | Jan 11 | Nov 15 | none | Nov 20 |
| 1993 | Jan 4 | no data | Jan 4 | no data |
| 1992 | Jan 28 | Nov 13 | none | Dec 19 |
| 1991 | Feb 19 | Nov 28 | none | Dec 1 |
| 1990 | Feb 16 | Nov 3 | Feb 16 | Dec 23 |
| 1989 | Feb 16 | Dec 1 | Jan 29 | Dec 17 |
| 1988 | Feb 9 | Nov 19 | Jan 20 | Dec 30 |
| 1987 | Feb 21 | Nov 25 | Jan 22 | Dec 14 |
| 1986 | Feb 10 | Dec 11 | none | none |
| 1985 | no data | Dec 12 | no data | Dec 13 |
| 1984 | Feb 20 | no data | none | no data |
| 1983 | Feb 2 | Nov 27 | Jan 1 | none |
| 1982 | Jan 24 | no data | none | no data |
| 1981 | Jan 26 | Dec 23 | none | none |
"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.