Vegetation Period & Dry Spells in Maryland
1991-2020 Climatology: January 1 - December 31


NOTE: Data From preliminary NCEI's nClimDiv-Daily Data set v1.0.0
Data labeled as scaled on January 10, 2025.

RegionDuration of the
Vegetation Period (days)		Start of the
Vegetation Period		End of the
Vegetation Period		Number of Dry Spells
in the
Vegetation Period		Mean Duration of
Dry Spells
in the
Vegetation Period		Longest Dry Spells
in the
Vegetation Period		Starting Date of
Longest Dry Spell
in the Vegetation Period
Statewide 29316 Feb 5 Dec 38 5 1627 Aug
Clim. Div. 1 318 2 Feb17 Dec 40 5 18 5 Aug
Clim. Div. 2 30511 Feb12 Dec 39 5 1924 Aug
Clim. Div. 3 308 6 Feb10 Dec 39 5 2024 Aug
Clim. Div. 4 29815 Feb 9 Dec 38 5 1925 Aug
Clim. Div. 5 29417 Feb 7 Dec 38 5 1824 Aug
Clim. Div. 6 27628 Feb30 Nov 37 5 1614 Aug
Clim. Div. 7 266 6 Mar25 Nov 34 5 1615 Aug
Clim. Div. 8 254 9 Mar16 Nov 33 4 1317 Aug
Allegany 264 7 Mar25 Nov 34 5 1518 Aug
Anne Arundel 30111 Feb 8 Dec 38 5 18 3 Sep
Baltimore 27826 Feb30 Nov 36 5 1722 Aug
Calvert 30412 Feb12 Dec 38 5 1929 Aug
Caroline 29814 Feb 8 Dec 38 5 1827 Aug
Carroll 265 8 Mar27 Nov 35 5 16 9 Aug
Cecil 28124 Feb 1 Dec 37 5 1721 Aug
Charles 307 7 Feb10 Dec 39 5 20 2 Sep
Dorchester 308 9 Feb13 Dec 39 5 1819 Aug
Frederick 270 5 Mar28 Nov 35 5 1712 Aug
Garrett 254 9 Mar16 Nov 33 4 1314 Aug
Harford 28124 Feb 1 Dec 37 5 1617 Aug
Howard 27926 Feb 1 Dec 36 5 1819 Aug
Kent 29317 Feb 6 Dec 38 5 1724 Aug
Montgomery 28621 Feb 3 Dec 36 5 1819 Aug
Prince George's29615 Feb 8 Dec 37 5 2024 Aug
Queen Anne's 29714 Feb 7 Dec 38 5 18 1 Sep
Saint Mary's 307 9 Feb12 Dec 39 5 1915 Aug
Somerset 320 2 Feb18 Dec 40 5 19 8 Aug
Talbot 30213 Feb11 Dec 39 5 19 2 Sep
Washington 266 6 Mar26 Nov 35 5 1720 Aug
Wicomico 30910 Feb15 Dec 39 5 1812 Aug
Worcester 319 2 Feb17 Dec 40 5 1811 Aug
Baltimore City 29517 Feb 7 Dec 38 5 1824 Aug