Frost history / Bartlesville 3, OK
Bartlesville 3, OK: frost dates by year
Last spring and first fall frost at NOAA station USC00340546, 2007 to 2025, measured from daily minimum temperatures.
Elevation 715 ft, 36.762, -96.012. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 14 | Oct 24 |
| Earliest | Mar 10 (2012) | Oct 7 (2012) |
| Latest | May 3 (2023) | Nov 10 (2016) |
| Trend | 13.5 days later per decade | 1.5 days earlier per decade |
| Years with data | 16 | 18 |
At 28°F (hard freeze) the median last spring date is Apr 3 and the median first fall date is Nov 2.
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 8 | Nov 1 | Apr 7 | Nov 2 |
| 2024 | Apr 22 | Oct 16 | Mar 29 | Oct 16 |
| 2023 | May 3 | Oct 17 | Apr 23 | Oct 30 |
| 2022 | Apr 19 | Oct 18 | Apr 15 | Oct 19 |
| 2021 | Apr 22 | Nov 4 | Apr 21 | Nov 13 |
| 2020 | Apr 20 | Oct 27 | Apr 20 | Nov 2 |
| 2019 | Apr 3 | Oct 12 | Apr 1 | Oct 31 |
| 2018 | Apr 22 | Oct 21 | Apr 17 | Nov 10 |
| 2017 | Apr 7 | Oct 28 | Mar 16 | Oct 28 |
| 2016 | Apr 3 | Nov 10 | Apr 2 | Nov 19 |
| 2015 | Apr 5 | Oct 30 | Apr 4 | Nov 13 |
| 2014 | May 2 | Nov 1 | Apr 15 | Nov 1 |
| 2013 | Apr 25 | Oct 19 | Mar 27 | Nov 12 |
| 2012 | Mar 10 | Oct 7 | Mar 10 | Oct 8 |
| 2011 | Apr 6 | Oct 20 | Mar 10 | Oct 20 |
| 2010 | Mar 29 | Oct 29 | Mar 21 | Nov 6 |
| 2009 | no data | Oct 18 | no data | Nov 27 |
| 2007 | no data | Nov 6 | no data | Nov 7 |
"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 1991–2020 frost probabilities.