Charles County, Maryland · Frost dates
Charles County frost dates.
First-frost, last-frost, and growing-season length for Charles County, Maryland. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-08
- 20%
- 04-05
- 50%
- 03-28
- 80%
- 03-19
- 90%
- 03-14
First fall frost
- 10%
- 10-28
- 20%
- 11-01
- 50%
- 11-08
- 80%
- 11-18
- 90%
- 11-25
28°F — killing freeze
Last spring freeze
- 10%
- 03-30
- 20%
- 03-26
- 50%
- 03-17
- 80%
- 03-06
- 90%
- 02-28
First fall freeze
- 10%
- 11-07
- 20%
- 11-12
- 50%
- 11-22
- 80%
- 12-04
- 90%
- 12-10
Growing season length (days, 28°F threshold)
- Short year
- 222
- Median
- 250
- Long year
- 285
Source NOAA station
QUANTICO MCAS, VA US
15.5 mi · 30 yrs of record (1991–2020) · 10 ft elev.
Data from QUANTICO MCAS, VA US, 15.5 miles away with 30-year NOAA record (1991-2020).
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