Aurora, NE: frost dates by year

Last spring and first fall frost at NOAA station USC00250445, 1964 to 2007, measured from daily minimum temperatures.

Elevation 1,785 ft, 40.859, -97.996. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 23	Oct 11
Earliest	Mar 31 (1991)	Sep 19 (1991)
Latest	May 13 (1966)	Oct 29 (1971)
Trend	0.7 days later per decade	1.5 days earlier per decade
Years with data	41	42

At 28°F (hard freeze) the median last spring date is Apr 9 and the median first fall date is Oct 23.

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
2007	Apr 12	Oct 26	Apr 9	Nov 1
2006	no data	Oct 12	no data	Oct 12
2005	May 3	Oct 7	Mar 20	Oct 7
2004	May 2	Oct 2	Apr 13	Nov 3
2003	May 11	Oct 25	Apr 8	Oct 25
2002	Apr 22	Oct 13	Apr 5	Oct 23
2001	Apr 18	Oct 6	Apr 18	Oct 27
2000	Apr 18	Oct 6	Apr 16	Oct 6
1999	Apr 17	Oct 2	Apr 16	Oct 24
1996	Apr 29	Oct 18	Apr 29	Oct 30
1995	Apr 28	Sep 21	Apr 27	Sep 22
1994	May 1	Oct 25	Apr 7	Oct 25
1993	Apr 17	Oct 9	Apr 4	Oct 10
1992	Apr 27	Oct 8	Apr 22	Oct 18
1991	Mar 31	Sep 19	Mar 30	Oct 6
1990	May 1	Oct 10	Apr 28	Oct 10
1989	May 6	Sep 23	Apr 13	Oct 18
1988	Apr 27	Oct 4	Apr 19	Oct 28
1987	Apr 11	Oct 10	Apr 4	Oct 11
1986	Apr 22	Oct 12	Apr 16	Oct 13
1985	Apr 14	Sep 24	Apr 9	Oct 2
1984	Apr 5	Sep 26	Apr 1	Sep 29
1983	Apr 19	Sep 20	Apr 15	Nov 10
1982	Apr 29	Oct 20	Apr 21	Oct 21
1981	May 10	Oct 22	Mar 20	Oct 22
1980	May 8	Oct 19	Apr 14	Oct 25
1979	May 11	Oct 13	Apr 9	Oct 13
1978	Apr 22	Oct 6	Apr 21	Nov 12
1977	Apr 6	Oct 12	Apr 5	Oct 12
1976	May 3	Oct 16	Mar 27	Oct 16
1975	Apr 13	Oct 25	Apr 4	Oct 25
1974	Apr 16	Oct 2	Apr 5	Nov 6
1973	Apr 16	Oct 28	Apr 10	Oct 29
1972	Apr 25	Oct 18	Apr 8	Oct 18
1971	Apr 7	Oct 29	Apr 6	Oct 31
1970	Apr 23	Oct 9	Apr 4	Oct 31
1969	Apr 6	Oct 13	Mar 31	Oct 14
1968	Apr 24	Oct 28	Apr 5	Nov 3
1967	May 4	Oct 25	May 4	Oct 28
1966	May 13	Oct 15	Apr 30	Nov 1
1965	Apr 28	Sep 24	Mar 30	Nov 9
1964	Apr 9	Oct 5	Apr 8	Nov 13

"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.