Frost history / Cylburn, MD
Cylburn, MD: frost dates by year
Last spring and first fall frost at NOAA station USC00182308, 2006 to 2025, measured from daily minimum temperatures.
Elevation 235 ft, 39.353, -76.654. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 4 | Nov 2 |
| Earliest | Mar 22 (2023) | Oct 13 (2006) |
| Latest | Apr 17 (2020) | Nov 30 (2024) |
| Trend | 3.4 days earlier per decade | 13.0 days later per decade |
| Years with data | 14 | 16 |
At 28°F (hard freeze) the median last spring date is Mar 28 and the median first fall date is Nov 20.
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 10 | Nov 11 | Mar 4 | Dec 4 |
| 2024 | Mar 25 | Nov 30 | Mar 2 | Nov 30 |
| 2023 | Mar 22 | Nov 2 | Mar 21 | Nov 29 |
| 2022 | no data | Nov 15 | no data | Nov 21 |
| 2021 | Apr 3 | Nov 3 | Apr 2 | Nov 20 |
| 2020 | Apr 17 | Nov 18 | Mar 1 | Nov 19 |
| 2019 | no data | Nov 2 | no data | Nov 9 |
| 2016 | Apr 11 | no data | Apr 10 | no data |
| 2015 | Mar 30 | Oct 19 | Mar 30 | Dec 20 |
| 2014 | Apr 17 | Nov 8 | Mar 27 | Nov 15 |
| 2013 | Apr 5 | Nov 4 | Apr 5 | Nov 13 |
| 2012 | Mar 28 | Oct 13 | Mar 7 | Nov 6 |
| 2011 | Mar 30 | Oct 30 | Mar 29 | Dec 2 |
| 2010 | no data | Nov 1 | no data | Nov 29 |
| 2009 | Apr 13 | no data | Mar 25 | no data |
| 2008 | Apr 3 | Oct 31 | Mar 30 | Nov 12 |
| 2007 | Apr 12 | Oct 30 | Apr 11 | Nov 8 |
| 2006 | no data | Oct 13 | no data | Nov 4 |
"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.