Water Conservation

Normal Monthly Precipitation Totals (in Inches) for Maryland Counties

Average monthly precipitation by month and county

County

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Allegany

2.7

3.0

2.8

2.7

2.6

3.6

3.3

3.8

3.6

3.6

3.4

3.1

Anne Arundel

3.2

3.3

3.5

3.1

3.2

4.0

3.2

4.0

3.5

3.8

4.1

3.5

Baltimore City

3.1

3.6

3.6

3.2

3.2

3.9

3.4

4.1

3.6

3.7

4.1

3.5

Baltimore County

3.3

3.7

3.6

3.2

3.0

3.9

3.5

4.3

3.7

4.0

4.0

3.9

Calvert

3.1

3.4

3.2

3.1

2.9

3.9

3.2

4.0

3.6

4.1

4.0

3.5

Caroline

3.1

3.4

3.4

3.4

3.2

3.9

3.1

3.6

3.4

4.2

4.8

3.5

Carroll

3.2

3.4

3.4

3.1

2.8

3.8

3.5

4.1

3.8

4.0

3.7

3.7

Cecil

3.1

3.3

3.5

3.1

2.9

3.9

3.4

3.8

3.6

4.0

3.8

3.6

Charles

3.3

3.2

3.3

3.1

2.9

3.9

3.1

3.8

3.6

4.2

4.3

3.7

Dorchester

3.0

3.3

3.4

3.4

3.3

4.0

3.1

3.4

3.3

4.1

4.7

3.4

Frederick

3.2

3.5

3.3

3.0

2.8

3.8

3.6

4.2

3.8

3.8

3.6

3.7

Garrett

3.1

2.7

3.4

3.5

2.8

4.0

4.0

4.1

4.0

4.1

4.1

3.0

Harford

3.3

3.7

3.8

3.3

2.9

4.1

3.7

4.3

3.8

4.3

4.2

4.0

Howard

3.2

3.5

3.5

3.1

3.0

3.9

3.4

4.2

3.8

3.7

3.9

3.7

Kent

3.2

3.4

3.7

3.2

3.0

4.0

3.3

4.0

3.8

4.0

4.1

3.7

Montgomery

3.1

3.4

3.2

3.0

2.9

3.7

3.3

4.2

3.8

3.8

3.9

3.7

Prince Georges

3.1

3.3

3.3

3.0

2.9

3.7

3.2

4.0

3.6

4.1

4.2

3.6

Queen Annes

3.2

3.4

3.6

3.3

3.0

3.8

3.2

3.8

3.6

4.0

4.4

3.7

Somerset

3.2

3.2

3.3

3.5

3.3

4.3

3.3

3.6

3.3

4.2

5.0

3.8

St Marys

3.1

3.2

3.1

3.0

3.0

4.0

3.1

4.0

3.7

4.2

4.1

3.5

Talbot

3.2

3.5

3.6

3.4

3.1

4.1

3.3

3.9

3.4

4.2

4.4

3.5

Washington

3.0

3.2

2.9

2.8

2.6

3.5

3.4

3.9

3.6

3.6

3.4

3.4

Wicomico

3.3

3.2

3.6

3.5

3.5

4.3

3.3

3.5

3.4

4.2

5.1

3.7

Worcester

3.3

3.3

3.5

3.5

3.5

4.4

3.1

3.5

3.4

4.2

5.0

3.5

For More Information

For more information contact the Water Supply Program at 410-537-3589 or water.supply@maryland.gov.​