Frost history / Hartley, TX
Hartley, TX: frost dates by year
Last spring and first fall frost at NOAA station USC00413979, 2006 to 2018, measured from daily minimum temperatures.
Elevation 3,887 ft, 35.878, -102.385. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 3 | Oct 20 |
| Earliest | Apr 4 (2012) | Oct 2 (2009) |
| Latest | May 6 (2013) | Nov 11 (2014) |
| Trend | 6.3 days earlier per decade | 5.8 days later per decade |
| Years with data | 11 | 13 |
At 28°F (hard freeze) the median last spring date is Apr 9 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 |
|---|---|---|---|---|
| 2018 | Apr 20 | Oct 15 | Apr 16 | Oct 15 |
| 2017 | no data | Oct 11 | no data | Oct 28 |
| 2016 | May 3 | Nov 9 | Apr 3 | Nov 13 |
| 2015 | Apr 11 | Nov 6 | Mar 16 | Nov 6 |
| 2014 | May 3 | Nov 11 | Apr 16 | Nov 11 |
| 2013 | May 6 | Oct 7 | May 4 | Oct 20 |
| 2012 | Apr 4 | Oct 8 | Mar 21 | Oct 27 |
| 2011 | May 4 | Oct 28 | Mar 31 | Oct 28 |
| 2010 | May 3 | Oct 28 | Apr 9 | Oct 29 |
| 2009 | no data | Oct 2 | no data | Oct 11 |
| 2008 | May 4 | Oct 23 | Apr 18 | Oct 24 |
| 2007 | Apr 27 | Oct 20 | Apr 16 | Nov 1 |
| 2006 | Apr 27 | Oct 20 | Apr 9 | 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.