Temple Bar, AZ: frost dates by year

Last spring and first fall frost at NOAA station USC00028516, 1988 to 2002, measured from daily minimum temperatures.

Elevation 1,280 ft, 36.030, -114.329. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Jan 30	Dec 12
Earliest	Jan 8 (1997)	Nov 20 (1994)
Latest	Mar 5 (2002)	Dec 27 (1995)
Trend	6.2 days later per decade	7.4 days later per decade
Years with data	12, 1 with no freeze	14

At 28°F (hard freeze) the median last spring date is Jan 19 and the median first fall date is Dec 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
2002	Mar 5	no data	Feb 1	no data
2001	Jan 19	Dec 12	none	none
2000	Jan 30	Dec 20	none	none
1999	Feb 14	Dec 14	none	none
1998	Jan 9	Dec 8	none	Dec 24
1997	Jan 8	Dec 12	none	Dec 27
1996	Feb 27	Dec 19	none	Dec 19
1995	none	Dec 27	none	none
1994	no data	Nov 20	no data	none
1993	Jan 12	Nov 26	Jan 6	Dec 23
1992	Jan 21	Nov 25	none	Dec 20
1991	Jan 31	Dec 2	Jan 2	none
1990	Feb 16	Nov 28	Feb 16	Dec 22
1989	no data	Dec 12	no data	none
1988	no data	Dec 22	no data	Dec 29

"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.