Frost history / Broadwater 3WNW, NE
Broadwater 3WNW, NE: frost dates by year
Last spring and first fall frost at NOAA station USC00251189, 2002 to 2022, measured from daily minimum temperatures.
Elevation 3,479 ft, 41.611, -102.901. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 17 | Sep 28 |
| Earliest | Apr 27 (2018) | Sep 3 (2010) |
| Latest | May 29 (2002) | Oct 13 (2015) |
| Trend | 3.1 days earlier per decade | 1.2 days later per decade |
| Years with data | 16 | 13 |
At 28°F (hard freeze) the median last spring date is May 12 and the median first fall date is Oct 7.
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 |
|---|---|---|---|---|
| 2022 | May 22 | Oct 8 | May 22 | Oct 8 |
| 2021 | May 13 | Oct 2 | May 6 | Oct 14 |
| 2020 | May 10 | Sep 9 | Apr 21 | Sep 10 |
| 2019 | May 23 | no data | May 23 | no data |
| 2018 | Apr 27 | no data | Apr 27 | no data |
| 2017 | May 24 | no data | May 3 | no data |
| 2016 | May 18 | Sep 10 | May 12 | Oct 5 |
| 2015 | May 20 | Oct 13 | May 10 | Oct 16 |
| 2014 | May 15 | Oct 3 | May 14 | Oct 4 |
| 2013 | May 6 | Sep 28 | May 5 | Oct 7 |
| 2012 | May 20 | Oct 4 | May 13 | Oct 4 |
| 2011 | May 5 | Sep 21 | May 3 | Oct 13 |
| 2010 | May 14 | Sep 3 | May 13 | Oct 13 |
| 2006 | May 16 | no data | May 15 | no data |
| 2004 | no data | Oct 13 | no data | Oct 29 |
| 2003 | May 20 | Sep 19 | May 20 | Oct 1 |
| 2002 | May 29 | Sep 22 | May 13 | Sep 22 |
"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.