Baltimore city, Maryland · Frost dates
Baltimore city frost dates.
First-frost, last-frost, and growing-season length for Baltimore city, Maryland. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-04
- 20%
- 04-01
- 50%
- 03-24
- 80%
- 03-13
- 90%
- 03-08
First fall frost
- 10%
- 11-07
- 20%
- 11-11
- 50%
- 11-21
- 80%
- 12-02
- 90%
- 12-08
28°F — killing freeze
Last spring freeze
- 10%
- 03-26
- 20%
- 03-21
- 50%
- 03-11
- 80%
- 03-02
- 90%
- 02-24
First fall freeze
- 10%
- 11-18
- 20%
- 11-24
- 50%
- 12-05
- 80%
- 12-19
- 90%
- 12-25
Growing season length (days, 28°F threshold)
- Short year
- 237
- Median
- 269
- Long year
- 304
Source NOAA station
MD SCI CTR BALTIMORE, MD US
1.3 mi · 30 yrs of record (1991–2020) · 20 ft elev.
Data from MD SCI CTR BALTIMORE, MD US, 1.3 miles away with 30-year NOAA record (1991-2020).
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