Beaver, OK: frost dates by year

Last spring and first fall frost at NOAA station USC00340593, 1951 to 2016, measured from daily minimum temperatures.

Elevation 2,465 ft, 36.813, -100.531. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 18	Oct 18
Earliest	Mar 26 (1963)	Sep 21 (1983)
Latest	May 14 (1953)	Nov 9 (2016)
Trend	little change (less than half a day per decade)	0.7 days later per decade
Years with data	59	60

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Oct 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
2016	no data	Nov 9	no data	Nov 9
2015	Apr 11	Nov 7	Apr 11	Nov 12
2014	May 2	Nov 6	May 2	Nov 11
2013	May 6	Oct 17	May 5	Oct 18
2012	Apr 9	Oct 26	Mar 10	Oct 27
2011	May 4	Oct 27	Apr 17	Oct 28
2010	Apr 9	Oct 27	Apr 9	Nov 5
2009	Apr 9	Oct 2	Apr 8	Oct 11
2008	May 9	Oct 24	Apr 19	Oct 24
2007	Apr 16	Oct 19	Apr 8	Nov 1
2006	Apr 27	Oct 23	Apr 27	Oct 31
2005	May 4	Oct 22	Apr 13	Oct 24
2004	Apr 15	Oct 14	Apr 14	Nov 3
2003	Apr 10	no data	Apr 10	no data
2002	no data	Oct 17	no data	Oct 31
2001	Apr 13	Oct 6	Mar 27	Oct 14
2000	Apr 17	Sep 25	Apr 17	Oct 8
1999	Apr 18	Oct 4	Apr 18	Oct 19
1998	Apr 23	Nov 5	Apr 18	Nov 10
1997	no data	Oct 26	no data	Oct 26
1996	Apr 24	Oct 18	Apr 7	Oct 18
1995	Apr 28	Oct 14	Apr 13	Oct 21
1994	Apr 30	Oct 9	Apr 7	Nov 5
1993	no data	Oct 10	no data	Oct 21
1992	no data	Oct 10	no data	Nov 4
1991	May 2	Oct 5	May 1	Oct 19
1990	Apr 6	Oct 10	Mar 27	Oct 18
1989	Apr 11	Oct 18	Apr 10	Oct 18
1988	Apr 13	Oct 27	Apr 13	Oct 29
1987	Apr 23	Oct 12	Apr 4	Nov 10
1986	no data	Oct 14	no data	Nov 9
1985	Apr 1	Sep 30	Apr 1	Nov 4
1984	May 1	no data	Apr 30	no data
1983	Apr 18	Sep 21	Apr 16	Nov 10
1982	Apr 22	Oct 11	Apr 22	Oct 20
1981	May 10	Oct 23	Mar 23	Oct 26
1980	Apr 15	Oct 24	Mar 25	Oct 24
1979	Apr 7	no data	Apr 5	no data
1978	May 4	Oct 26	Mar 25	Nov 7
1977	Apr 6	Oct 12	Apr 6	Oct 12
1976	Apr 5	Oct 8	Mar 31	Oct 9
1975	Apr 19	Sep 25	Apr 4	Oct 25
1974	Apr 17	Oct 15	Apr 16	Nov 5
1972	Apr 4	Oct 19	Apr 4	Oct 31
1971	Apr 14	Oct 29	Apr 7	Nov 6
1970	May 2	Oct 8	Apr 5	Oct 28
1969	Apr 29	Oct 13	Mar 30	Oct 14
1968	Apr 24	no data	Apr 24	no data
1967	May 2	Sep 28	Mar 18	Oct 27
1966	May 13	Oct 1	Apr 21	Oct 15
1965	Apr 28	Nov 2	Apr 28	Nov 14
1964	Apr 13	Oct 19	Apr 13	Nov 19
1963	Mar 26	Nov 1	Mar 26	Nov 13
1962	Apr 7	Oct 29	Apr 2	Nov 5
1961	Apr 16	Oct 19	Mar 14	Nov 3
1960	May 1	Oct 30	Apr 3	Nov 9
1959	Apr 22	Oct 27	Apr 22	Oct 27
1958	Apr 24	Oct 1	Mar 25	Oct 23
1957	Apr 14	no data	Apr 14	no data
1956	Apr 29	Oct 21	Apr 10	Oct 31
1955	Apr 7	Oct 24	Apr 7	Oct 24
1954	May 3	Oct 15	May 3	Oct 15
1953	May 14	Oct 27	May 14	Nov 9
1952	Apr 10	Oct 7	Apr 10	Oct 7
1951	Apr 13	Oct 19	Apr 13	Nov 1

"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.