Vegetation Period & Dry Spells
in Maryland: January 1 - December 31, 2025


NOTE: Data From preliminary NCEI's nClimDiv-Daily Data set v1.0.0
Data labeled as scaled on January 8, 2026.

RegionDuration of the
Vegetation Period (days)		Day when
Vegetation Period*
Starts		Day when
Vegetation Period*
Ends		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 27625 Feb27 Nov 34 5 1422 Aug
Clim. Div. 1 269 5 Mar28 Nov 35 5 1622 Aug
Clim. Div. 2 27625 Feb27 Nov 34 5 1622 Aug
Clim. Div. 3 27625 Feb27 Nov 36 5 1422 Aug
Clim. Div. 4 27625 Feb27 Nov 37 5 1422 Aug
Clim. Div. 5 27625 Feb27 Nov 35 5 1422 Aug
Clim. Div. 6 27625 Feb27 Nov 34 5 1422 Aug
Clim. Div. 7 26310 Mar27 Nov 32 5 12 2 Aug
Clim. Div. 8 26211 Mar27 Nov 33 4 11 2 Aug
Allegany 26310 Mar27 Nov 31 5 12 2 Aug
Anne Arundel 27625 Feb27 Nov 36 5 1422 Aug
Baltimore 26310 Mar27 Nov 32 5 1422 Aug
Calvert 27625 Feb27 Nov 36 5 1422 Aug
Caroline 27625 Feb27 Nov 35 5 1622 Aug
Carroll 26310 Mar27 Nov 32 5 1313 Apr
Cecil 26310 Mar27 Nov 32 5 1313 Apr
Charles 27625 Feb27 Nov 37 5 1422 Aug
Dorchester 27725 Feb28 Nov 36 5 1622 Aug
Frederick 26310 Mar27 Nov 32 5 12 2 Aug
Garrett 26211 Mar27 Nov 33 4 11 2 Aug
Harford 26310 Mar27 Nov 32 5 1313 Apr
Howard 27625 Feb27 Nov 34 5 1422 Aug
Kent 26310 Mar27 Nov 34 5 1422 Aug
Montgomery 27625 Feb27 Nov 32 6 1422 Aug
Prince George's27625 Feb27 Nov 38 5 1422 Aug
Queen Anne's 27625 Feb27 Nov 34 5 1422 Aug
Saint Mary's 27625 Feb27 Nov 36 5 1422 Aug
Somerset 269 5 Mar28 Nov 35 5 1622 Aug
Talbot 27625 Feb27 Nov 34 5 1622 Aug
Washington 26310 Mar27 Nov 32 5 12 2 Aug
Wicomico 27725 Feb28 Nov 35 5 1622 Aug
Worcester 274 5 Mar 3 Dec 36 5 1622 Aug
Baltimore City 27625 Feb27 Nov 34 5 1422 Aug

*The Vegetation Period is defined as the period between the first day of the first occurrence of a 6-day period
with daily mean temperatures equal to or above 41°F and the day before the first occurrence of a 6-day period
with daily mean temperatures below 41°F after the first of July.