Albia 3 Nne, IA: frost dates by year

Last spring and first fall frost at NOAA station USC00130112, 1951 to 2020, measured from daily minimum temperatures.

Elevation 880 ft, 41.066, -92.787. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 22	Oct 13
Earliest	Mar 31 (1969)	Sep 19 (1991)
Latest	May 19 (2002)	Nov 8 (1956)
Trend	little change (less than half a day per decade)	little change (less than half a day per decade)
Years with data	62	68

At 28°F (hard freeze) the median last spring date is Apr 12 and the median first fall date is Oct 26.

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
2020	May 9	Oct 20	Apr 16	Oct 26
2019	Apr 29	Oct 12	Apr 1	Oct 26
2018	Apr 19	Oct 15	Apr 18	Oct 21
2017	Apr 8	Oct 29	Mar 22	Oct 29
2016	Apr 12	Oct 13	Apr 12	Nov 12
2015	Apr 23	Oct 30	Mar 29	Nov 20
2014	Apr 19	Oct 12	Apr 18	Nov 1
2013	May 4	Oct 23	Apr 24	Oct 25
2012	Apr 12	Oct 6	Apr 11	Oct 6
2011	May 4	Oct 21	May 4	Nov 4
2010	Apr 9	Oct 29	Mar 26	Oct 29
2009	Apr 15	Oct 10	Apr 11	Oct 11
2008	Apr 29	Oct 21	Apr 29	Oct 28
2007	Apr 15	Oct 24	Apr 13	Nov 6
2006	no data	Oct 12	no data	Oct 13
2005	no data	Oct 8	no data	Nov 10
2004	May 3	Oct 2	Apr 14	Nov 8
2003	no data	Oct 2	no data	Oct 2
2002	May 19	Oct 7	May 19	Oct 16
2001	Apr 19	Oct 17	Mar 27	Oct 17
2000	Apr 13	Oct 6	Apr 13	Oct 7
1999	Apr 17	Oct 18	Mar 27	Oct 18
1998	Apr 17	Oct 22	Mar 25	Nov 5
1997	Apr 17	Oct 17	Apr 17	Oct 17
1996	Apr 30	Oct 31	Apr 9	Oct 31
1995	Apr 22	Sep 22	Apr 5	Oct 22
1994	Apr 29	Oct 10	Apr 7	Oct 26
1993	Apr 16	Oct 10	Apr 6	Oct 10
1992	May 6	Sep 29	Apr 12	Oct 17
1991	Apr 24	Sep 19	Mar 30	Oct 15
1990	Apr 30	Oct 19	Apr 12	Oct 19
1989	May 7	Sep 24	Apr 13	Oct 20
1988	Apr 24	Oct 5	Apr 19	Oct 6
1987	Apr 5	Oct 3	Apr 4	Oct 3
1986	Apr 22	Oct 14	Apr 22	Nov 9
1985	no data	Oct 1	no data	Nov 4
1983	Apr 20	Sep 23	Apr 19	Nov 5
1982	no data	Oct 21	no data	Oct 21
1981	Apr 15	no data	Mar 23	no data
1980	Apr 14	Oct 12	Apr 12	Oct 26
1979	Apr 28	Oct 13	Apr 10	Oct 13
1978	May 1	Oct 26	Mar 26	Nov 7
1977	Apr 6	Oct 16	Apr 6	Nov 11
1976	May 3	Oct 6	Apr 12	Oct 8
1975	Apr 20	Oct 2	Apr 12	Oct 2
1974	Apr 24	Sep 22	Apr 8	Oct 2
1973	Apr 13	Nov 3	Apr 13	Nov 5
1972	Apr 25	Sep 30	Apr 8	Oct 15
1971	Apr 14	Nov 4	Apr 6	Nov 6
1970	no data	Oct 16	no data	Nov 15
1969	Mar 31	Oct 14	Mar 31	Oct 27
1968	Apr 25	Oct 25	Apr 5	Nov 8
1967	May 2	Oct 11	Apr 24	Oct 28
1966	May 10	Oct 30	Apr 21	Nov 2
1965	Apr 19	Oct 12	Mar 31	Oct 24
1964	no data	Oct 6	no data	Oct 9
1963	Apr 24	Oct 29	Mar 22	Nov 2
1962	Apr 16	Oct 24	Apr 15	Oct 24
1961	May 2	Oct 20	Apr 16	Nov 3
1960	Apr 30	Oct 19	Apr 10	Oct 20
1959	May 15	Oct 12	Apr 11	Oct 28
1958	Apr 29	Oct 1	Apr 29	Nov 6
1957	Apr 15	Oct 19	Apr 14	Oct 25
1956	Apr 24	Nov 8	Apr 24	Nov 8
1955	Apr 7	Oct 15	Mar 28	Oct 24
1954	May 7	Oct 30	Apr 4	Oct 30
1953	Apr 27	Oct 27	Apr 20	Oct 29
1952	Apr 16	Oct 6	Apr 15	Oct 6
1951	Apr 19	Sep 28	Apr 17	Oct 31

"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.