Growing Season
in Maryland: January 1 - August 31, 2025


NOTE: Data From preliminary NCEI's nClimDiv-Daily Data set v1.0.0
Data labeled as scaled on September 16, 2025.

RegionDuration of the
Growing Season (days)		Day when
Growing Season*
Starts		Day when
Growing Season*
Ends+		Number of Days
in the year with
Minimum Temperature
Above Freezing
Statewide 14311 Apr31 Aug184
Clim. Div. 1 14311 Apr31 Aug194
Clim. Div. 2 17411 Mar31 Aug192
Clim. Div. 3 17411 Mar31 Aug193
Clim. Div. 4 14410 Apr31 Aug192
Clim. Div. 5 14410 Apr31 Aug187
Clim. Div. 6 14311 Apr31 Aug182
Clim. Div. 7 13618 Apr31 Aug174
Clim. Div. 8 13519 Apr31 Aug159
Allegany 13519 Apr31 Aug169
Anne Arundel 17510 Mar31 Aug194
Baltimore 14311 Apr31 Aug180
Calvert 17411 Mar31 Aug191
Caroline 14311 Apr31 Aug186
Carroll 14311 Apr31 Aug178
Cecil 14311 Apr31 Aug186
Charles 14410 Apr31 Aug195
Dorchester 17411 Mar31 Aug193
Frederick 14311 Apr31 Aug181
Garrett 13519 Apr31 Aug159
Harford 14311 Apr31 Aug183
Howard 14311 Apr31 Aug181
Kent 14410 Apr31 Aug186
Montgomery 14410 Apr31 Aug190
Prince George's14410 Apr31 Aug191
Queen Anne's 14410 Apr31 Aug188
Saint Mary's 17411 Mar31 Aug190
Somerset 17411 Mar31 Aug197
Talbot 17411 Mar31 Aug192
Washington 14311 Apr31 Aug178
Wicomico 14311 Apr31 Aug193
Worcester 14311 Apr31 Aug194
Baltimore City 14410 Apr31 Aug192

+A this time, this column shows the last day of data.

*The Growing Season is defined as the period between the last frost of spring and the first frost of fall,
when Minimum Temperatures are greater than 32°F.