Pennsylvania Drought Summary

Percent of time spent in drought categories

-- Pocono Mountains Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 2.5 2.5

Severe 6.1 8.6

Moderate 13.6 22.2

Mild 20.2 42.5

Incipient 10.9 53.4

Near Normal 13.4 66.8

Wet 33.2 100.0

Lowest PDSI in 1335 months -5.60 in 11/1964

**-- Pocono Mountains Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	2.5	2.5
Severe	6.1	8.6
Moderate	13.6	22.2
Mild	20.2	42.5
Incipient	10.9	53.4
Near Normal	13.4	66.8
Wet	33.2	100.0
Lowest PDSI in 1335 months	-5.60 in 11/1964

-- East Central Mountains Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 2.4 2.4

Severe 6.8 9.2

Moderate 11.2 20.4

Mild 17.1 37.5

Incipient 11.1 48.6

Near Normal 15.1 63.7

Wet 36.3 100.0

Lowest PDSI in 1335 months -5.07 in 1/1981

**-- East Central Mountains Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	2.4	2.4
Severe	6.8	9.2
Moderate	11.2	20.4
Mild	17.1	37.5
Incipient	11.1	48.6
Near Normal	15.1	63.7
Wet	36.3	100.0
Lowest PDSI in 1335 months	-5.07 in 1/1981

-- Southeastern Piedmont Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 1.0 1.0

Severe 5.5 6.6

Moderate 10.7 17.3

Mild 18.9 36.2

Incipient 12.1 48.2

Near Normal 16.7 64.9

Wet 35.1 100.0

Lowest PDSI in 1335 months -5.15 in 1/1931

**-- Southeastern Piedmont Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	1.0	1.0
Severe	5.5	6.6
Moderate	10.7	17.3
Mild	18.9	36.2
Incipient	12.1	48.2
Near Normal	16.7	64.9
Wet	35.1	100.0
Lowest PDSI in 1335 months	-5.15 in 1/1931

-- Lower Susquehanna Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 2.9 2.9

Severe 7.0 9.9

Moderate 11.3 21.2

Mild 20.1 41.3

Incipient 11.4 52.7

Near Normal 13.1 65.8

Wet 34.2 100.0

Lowest PDSI in 1335 months -6.77 in 1/1931

**-- Lower Susquehanna Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	2.9	2.9
Severe	7.0	9.9
Moderate	11.3	21.2
Mild	20.1	41.3
Incipient	11.4	52.7
Near Normal	13.1	65.8
Wet	34.2	100.0
Lowest PDSI in 1335 months	-6.77 in 1/1931

-- Middle Susquehanna Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 8.8 8.8

Severe 8.5 17.3

Moderate 14.2 31.5

Mild 16.9 48.4

Incipient 8.3 56.7

Near Normal 9.7 66.4

Wet 33.6 100.0

Lowest PDSI in 1335 months -7.51 in 1/1931

**-- Middle Susquehanna Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	8.8	8.8
Severe	8.5	17.3
Moderate	14.2	31.5
Mild	16.9	48.4
Incipient	8.3	56.7
Near Normal	9.7	66.4
Wet	33.6	100.0
Lowest PDSI in 1335 months	-7.51 in 1/1931

-- Upper Susquehanna Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 6.3 6.3

Severe 7.3 13.6

Moderate 14.5 28.1

Mild 18.6 46.7

Incipient 8.1 54.8

Near Normal 9.4 64.1

Wet 35.9 100.0

Lowest PDSI in 1335 months -7.26 in 2/1931

**-- Upper Susquehanna Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	6.3	6.3
Severe	7.3	13.6
Moderate	14.5	28.1
Mild	18.6	46.7
Incipient	8.1	54.8
Near Normal	9.4	64.1
Wet	35.9	100.0
Lowest PDSI in 1335 months	-7.26 in 2/1931

-- Central Mountains Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 6.5 6.5

Severe 8.3 14.8

Moderate 18.0 32.8

Mild 16.6 49.4

Incipient 9.1 58.5

Near Normal 11.5 70.0

Wet 30.0 100.0

Lowest PDSI in 1335 months -7.57 in 12/1930

**-- Central Mountains Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	6.5	6.5
Severe	8.3	14.8
Moderate	18.0	32.8
Mild	16.6	49.4
Incipient	9.1	58.5
Near Normal	11.5	70.0
Wet	30.0	100.0
Lowest PDSI in 1335 months	-7.57 in 12/1930

-- South Central Mountains Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 6.8 6.8

Severe 7.2 14.0

Moderate 12.9 26.9

Mild 16.6 43.4

Incipient 9.8 53.3

Near Normal 15.7 68.9

Wet 31.1 100.0

Lowest PDSI in 1335 months -8.13 in 1/1931

**-- South Central Mountains Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	6.8	6.8
Severe	7.2	14.0
Moderate	12.9	26.9
Mild	16.6	43.4
Incipient	9.8	53.3
Near Normal	15.7	68.9
Wet	31.1	100.0
Lowest PDSI in 1335 months	-8.13 in 1/1931

-- Southwest Plateau Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 4.3 4.3

Severe 8.7 13.0

Moderate 12.4 25.4

Mild 21.0 46.4

Incipient 8.5 55.0

Near Normal 12.6 67.6

Wet 32.4 100.0

Lowest PDSI in 1335 months -7.34 in 1/1931

**-- Southwest Plateau Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	4.3	4.3
Severe	8.7	13.0
Moderate	12.4	25.4
Mild	21.0	46.4
Incipient	8.5	55.0
Near Normal	12.6	67.6
Wet	32.4	100.0
Lowest PDSI in 1335 months	-7.34 in 1/1931

-- Northwest Plateau Climate Division --
PDSI Category Percent of Time in Category Cumulative Percent Time
Extreme 5.8 5.8

Severe 7.6 13.3

Moderate 13.6 26.9

Mild 19.9 46.7

Incipient 8.5 55.3

Near Normal 10.7 66.0

Wet 34.0 100.0

Lowest PDSI in 1335 months -6.97 in 12/1930

**-- Northwest Plateau Climate Division --**
PDSI Category	Percent of Time in Category	Cumulative Percent Time
Extreme	5.8	5.8
Severe	7.6	13.3
Moderate	13.6	26.9
Mild	19.9	46.7
Incipient	8.5	55.3
Near Normal	10.7	66.0
Wet	34.0	100.0
Lowest PDSI in 1335 months	-6.97 in 12/1930

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.