Bishop, TX: frost dates by year

Last spring and first fall frost at NOAA station USC00410805, 1953 to 2011, measured from daily minimum temperatures.

Elevation 67 ft, 27.584, -97.803. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Feb 13	Dec 6
Earliest	Jan 4 (1953)	Nov 27 (2010)
Latest	Mar 5 (2007)	Dec 23 (1953)
Trend	7.4 days later per decade	3.6 days earlier per decade
Years with data	13	14, 2 with no freeze

At 28°F (hard freeze) the median last spring date is Jan 10 and the median first fall date is Dec 14.

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
2011	Feb 13	Nov 28	Feb 11	Nov 28
2010	Jan 31	Nov 27	Jan 10	Dec 1
2009	Feb 23	Dec 5	none	Dec 5
2008	Feb 2	Dec 11	Jan 2	none
2007	Mar 5	Dec 4	none	none
2006	Feb 20	Dec 1	none	none
2005	Jan 17	Dec 8	none	none
2004	Feb 15	Dec 15	none	Dec 25
2003	Feb 25	Nov 29	none	Dec 30
2002	Mar 5	none	Mar 5	none
2001	Jan 21	none	Jan 4	none
2000	Jan 6	Dec 13	none	none
1999	no data	Dec 6	no data	none
1953	Jan 4	Dec 23	none	Dec 24

"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.