Maryland Drought Summary

Percent of time spent in drought categories

-- Southeastern Shore Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 0.7 0.7
Severe 3.8 4.6
Moderate 10.9 15.5
Mild 18.5 34.0
Incipient 9.2 43.2
Near Normal 14.9 58.1
Wet 41.9 100.0
Lowest PDSI in 1335 months -5.05 in 2/1931

-- Central Eastern Shore Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 1.3 1.3
Severe 4.4 5.7
Moderate 8.8 14.5
Mild 20.2 34.8
Incipient 12.5 47.3
Near Normal 12.6 59.9
Wet 40.1 100.0
Lowest PDSI in 1335 months -5.43 in 2/1931

-- Lower Southern Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 1.0 1.0
Severe 3.4 4.4
Moderate 8.8 13.3
Mild 17.1 30.3
Incipient 12.3 42.6
Near Normal 16.3 59.0
Wet 41.0 100.0
Lowest PDSI in 1335 months -6.09 in 2/1931

-- Upper Southern Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 1.3 1.3
Severe 3.7 5.0
Moderate 8.4 13.4
Mild 17.2 30.6
Incipient 14.7 45.3
Near Normal 15.9 61.2
Wet 38.8 100.0
Lowest PDSI in 1335 months -6.39 in 2/1931

-- Northeastern Shore Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 1.3 1.3
Severe 4.0 5.3
Moderate 9.7 15.1
Mild 19.7 34.8
Incipient 11.8 46.5
Near Normal 16.4 62.9
Wet 37.1 100.0
Lowest PDSI in 1335 months -6.00 in 2/1931

-- Northern Central Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 2.1 2.1
Severe 5.3 7.4
Moderate 9.6 17.0
Mild 19.3 36.3
Incipient 12.6 48.8
Near Normal 17.2 66.1
Wet 33.9 100.0
Lowest PDSI in 1335 months -6.49 in 2/1931

-- Appalachian Mountain Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 2.5 2.5
Severe 5.7 8.2
Moderate 9.6 17.8
Mild 16.6 34.4
Incipient 11.2 45.5
Near Normal 14.9 60.4
Wet 39.6 100.0
Lowest PDSI in 1335 months -7.14 in 1/1931

-- Allegheny Plateau Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 2.8 2.8
Severe 4.8 7.6
Moderate 9.1 16.6
Mild 16.9 33.5
Incipient 11.9 45.4
Near Normal 14.3 59.7
Wet 40.3 100.0
Lowest PDSI in 1335 months -6.34 in 11/1930

Based on the monthly Palmer Drought Severity Index as computed by the National Climatic Data Center.
"Cumulative" is the percent of time in given category plus all preceeding categories.