Average September Temperatures for Maryland

Average temperatures for September at cities, communities and other locations around Maryland are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Eastern Shore, Central Maryland and Western Maryland.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Eastern Shore

Average September temperatures
High °F	Low °F	Place	High °C	Low °C
80	64	Assateague Island	27	18
78	60	Chestertown	26	16
77	61	Ocean City	25	16
80	62	Royal Oak	27	16
81	62	Salisbury	27	16
82	61	Snow Hill	28	16

Central Maryland

Average daily temperatures in September
High °F	Low °F	Place	High °C	Low °C
78	59	Aberdeen	26	15
80	65	Annapolis	27	18
80	59	Baltimore	27	15
79	59	Beltsville	26	15
75	58	Catoctin Mountain Park	24	14
80	59	Frederick	27	15
80	61	Laurel	27	16
77	58	Mechanicsville	25	14
79	63	Patuxent River	26	17
78	60	Rockville	25	16

Western Maryland

September temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
79	55	Cumberland	26	13
72	52	Frostburg	22	11
78	59	Hagerstown	25	15
74	51	Oakland	23	11
73	52	Savage River Reservoir Dam	23	11

Average Temperatures for Maryland in September

Eastern Shore

Central Maryland

Western Maryland

Reference

More Maryland Weather Information