Frost history / Burney, CA
Burney, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00041214, 1951 to 2015, measured from daily minimum temperatures.
Elevation 3,198 ft, 40.880, -121.655. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 21 | Aug 27 |
| Earliest | May 13 (2009) | Aug 1 (1987) |
| Latest | Jul 31 (1987) | Oct 17 (2012) |
| Trend | 3.6 days earlier per decade | 4.8 days later per decade |
| Years with data | 52 | 49 |
At 28°F (hard freeze) the median last spring date is May 25 and the median first fall date is Sep 20.
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 | May 14 | no data | Apr 17 | no data |
| 2014 | May 31 | Oct 2 | May 10 | Oct 27 |
| 2013 | May 24 | Sep 18 | May 22 | Sep 26 |
| 2012 | Jun 7 | Oct 17 | May 18 | Oct 18 |
| 2011 | Jun 3 | Oct 3 | Jun 3 | Oct 25 |
| 2010 | Jun 17 | Oct 12 | May 29 | Oct 12 |
| 2009 | May 13 | Sep 30 | Apr 27 | Sep 30 |
| 2007 | Jun 7 | no data | May 5 | no data |
| 2006 | May 30 | Sep 16 | Apr 19 | Sep 16 |
| 2005 | Jun 7 | Sep 10 | Apr 20 | Sep 24 |
| 2004 | Jun 8 | no data | May 12 | no data |
| 2003 | May 19 | no data | May 19 | no data |
| 2002 | Jun 9 | no data | May 11 | no data |
| 1991 | Jun 21 | Aug 11 | Jun 17 | Sep 22 |
| 1990 | Jul 3 | Aug 31 | Jun 14 | Sep 13 |
| 1989 | Jul 29 | Aug 1 | May 26 | Sep 7 |
| 1988 | Jul 7 | Sep 7 | May 30 | Sep 11 |
| 1987 | Jul 31 | Aug 1 | Jul 30 | Sep 16 |
| 1986 | Jul 19 | Aug 18 | Jul 5 | Sep 10 |
| 1985 | Jul 1 | Aug 2 | Jul 1 | Aug 9 |
| 1984 | Jun 22 | Aug 23 | Jun 1 | Sep 22 |
| 1983 | Jul 19 | Sep 2 | May 17 | Sep 9 |
| 1982 | Jul 3 | Aug 30 | Jul 3 | Sep 11 |
| 1981 | Jul 15 | Aug 20 | Jun 14 | Aug 31 |
| 1980 | Jul 10 | Sep 1 | May 25 | Sep 21 |
| 1979 | no data | Aug 6 | no data | Sep 22 |
| 1978 | Jun 25 | Aug 14 | May 31 | Aug 18 |
| 1977 | Jun 2 | Aug 27 | May 28 | Sep 22 |
| 1976 | no data | Aug 26 | no data | Oct 3 |
| 1975 | Jul 31 | Sep 2 | May 25 | Oct 14 |
| 1974 | Jun 26 | Aug 19 | Jun 8 | Sep 12 |
| 1973 | Jun 19 | Aug 14 | Jun 18 | Sep 1 |
| 1972 | Jun 24 | Sep 11 | Jun 24 | Sep 13 |
| 1971 | May 22 | Sep 3 | May 22 | Sep 19 |
| 1970 | Jun 29 | Aug 27 | May 12 | Sep 5 |
| 1969 | May 28 | Aug 26 | Apr 27 | Oct 3 |
| 1968 | Jun 30 | Aug 17 | May 15 | Sep 20 |
| 1967 | May 30 | Sep 13 | May 13 | Oct 6 |
| 1966 | Jul 3 | Aug 24 | Jun 5 | Oct 3 |
| 1965 | Jun 27 | Sep 7 | May 11 | Sep 18 |
| 1964 | May 22 | Aug 29 | May 22 | Sep 2 |
| 1963 | Jul 2 | Aug 25 | May 10 | Oct 24 |
| 1962 | Jun 7 | Aug 30 | Jun 4 | Sep 19 |
| 1961 | Jul 6 | Aug 18 | May 24 | Sep 22 |
| 1960 | Jun 21 | Aug 23 | May 22 | Sep 22 |
| 1959 | Jun 15 | Aug 21 | May 20 | Sep 16 |
| 1958 | Jun 4 | Sep 13 | May 13 | Sep 24 |
| 1957 | Jun 16 | Aug 12 | May 15 | Aug 29 |
| 1956 | Jun 5 | Aug 3 | May 27 | Sep 16 |
| 1955 | Jul 17 | Aug 16 | Jun 1 | Sep 18 |
| 1954 | Jun 18 | Sep 6 | Jun 6 | Sep 18 |
| 1953 | Jun 24 | Sep 18 | May 27 | Oct 2 |
| 1952 | Jun 30 | Aug 27 | Jun 15 | Oct 14 |
| 1951 | Jul 28 | Sep 1 | Jun 2 | Oct 4 |
"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.