Frost history / Ordway 1 Ene, CO
Ordway 1 Ene, CO: frost dates by year
Last spring and first fall frost at NOAA station USC00056131, 1981 to 2025, measured from daily minimum temperatures.
Elevation 4,312 ft, 38.221, -103.732. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 8 | Oct 12 |
| Earliest | Apr 6 (1992) | Sep 21 (1983) |
| Latest | Jun 8 (2007) | Oct 20 (2010) |
| Trend | 1.6 days earlier per decade | 2.5 days later per decade |
| Years with data | 29 | 27 |
At 28°F (hard freeze) the median last spring date is Apr 27 and the median first fall date is Oct 15.
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 |
|---|---|---|---|---|
| 2025 | Apr 21 | Oct 19 | Apr 21 | Oct 19 |
| 2024 | Apr 22 | Oct 16 | Apr 11 | Oct 31 |
| 2023 | Apr 28 | Oct 14 | Apr 23 | Oct 14 |
| 2022 | May 22 | Oct 13 | Apr 18 | Oct 20 |
| 2021 | May 12 | Oct 16 | Apr 24 | Oct 16 |
| 2020 | May 10 | Oct 12 | Apr 19 | Oct 12 |
| 2019 | no data | Oct 7 | no data | Oct 11 |
| 2018 | Apr 27 | no data | Apr 27 | no data |
| 2017 | May 23 | no data | May 4 | no data |
| 2016 | May 2 | Oct 7 | Apr 17 | Oct 23 |
| 2015 | no data | Oct 15 | no data | Oct 15 |
| 2014 | May 14 | no data | May 14 | no data |
| 2013 | May 6 | Oct 4 | May 5 | Oct 4 |
| 2012 | Apr 17 | Oct 2 | Mar 24 | Oct 26 |
| 2011 | May 16 | Oct 15 | Apr 29 | Oct 18 |
| 2010 | May 14 | Oct 20 | May 1 | Oct 27 |
| 2009 | Apr 20 | no data | Apr 8 | no data |
| 2008 | May 13 | Oct 16 | May 13 | Oct 24 |
| 2007 | Jun 8 | Oct 1 | Apr 16 | Oct 8 |
| 2006 | May 11 | Oct 10 | Apr 27 | Oct 19 |
| 2003 | May 10 | Oct 12 | Apr 9 | Oct 13 |
| 2002 | no data | Oct 12 | no data | Oct 12 |
| 1998 | Apr 30 | no data | Apr 30 | no data |
| 1996 | May 1 | no data | Apr 29 | no data |
| 1995 | Apr 27 | no data | Apr 24 | no data |
| 1993 | May 3 | Oct 10 | May 3 | Oct 21 |
| 1992 | Apr 6 | Oct 17 | Apr 3 | Oct 17 |
| 1991 | May 5 | Oct 5 | May 1 | Oct 5 |
| 1990 | no data | Oct 8 | no data | Oct 8 |
| 1985 | no data | Sep 22 | no data | Sep 22 |
| 1984 | Jun 7 | Sep 28 | Apr 28 | Sep 30 |
| 1983 | May 16 | Sep 21 | May 16 | Sep 21 |
| 1982 | May 8 | Oct 7 | May 7 | Oct 11 |
| 1981 | May 19 | Oct 17 | Apr 6 | Oct 17 |
"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.