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Precipitation Recalculations for 8 Prominent Pennsylvania Cities
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January
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.171
|
2.483
|
2.899
|
3.165
|
2.791
|
2.429
|
2.700
|
2.805
|
|
Median
(inches):
|
2.900
|
2.315
|
2.630
|
2.900
|
2.340
|
2.065
|
2.389
|
2.490
|
|
Mode
(inches):
|
3.660
|
4.400
|
2.650
|
1.670
|
2.550
|
2.060
|
1.860
|
3.320
|
|
Standard
Deviation (inches):
|
1.720
|
1.111
|
1.463
|
1.627
|
1.259
|
1.523
|
1.412
|
1.617
|
|
February
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
2.739
|
2.194
|
2.624
|
2.675
|
2.322
|
2.013
|
2.427
|
2.644
|
|
Median
(inches):
|
2.610
|
2.040
|
2.405
|
2.810
|
2.130
|
1.860
|
2.365
|
2.200
|
|
Mode
(inches):
|
2.370
|
1.620
|
1.350
|
2.440
|
1.730
|
0.890
|
3.780
|
3.520
|
|
Standard
Deviation (inches):
|
1.164
|
1.078
|
1.248
|
1.259
|
1.096
|
1.142
|
1.097
|
1.545
|
|
March
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.526
|
2.850
|
3.475
|
3.781
|
3.259
|
2.571
|
3.655
|
3.303
|
|
Median
(inches):
|
3.540
|
2.940
|
3.425
|
3.910
|
3.350
|
2.530
|
3.435
|
3.210
|
|
Mode
(inches):
|
3.820
|
3.060
|
1.980
|
4.680
|
3.670
|
1.340
|
3.620
|
2.950
|
|
Standard
Deviation (inches):
|
1.551
|
1.205
|
1.382
|
1.543
|
1.274
|
0.956
|
2.115
|
1.222
|
|
April
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.657
|
3.412
|
3.196
|
3.447
|
3.291
|
3.160
|
3.353
|
3.459
|
|
Median
(inches):
|
3.450
|
2.985
|
2.875
|
3.050
|
3.150
|
2.945
|
3.070
|
3.000
|
|
Mode
(inches):
|
3.500
|
2.240
|
2.800
|
2.920
|
3.260
|
2.480
|
1.980
|
4.220
|
|
Standard
Deviation (inches):
|
1.898
|
1.504
|
1.503
|
1.645
|
1.364
|
1.557
|
1.636
|
1.705
|
|
May
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.891
|
3.308
|
3.852
|
3.524
|
3.642
|
3.426
|
4.006
|
3.638
|
|
Median
(inches):
|
3.670
|
3.080
|
3.645
|
3.650
|
3.170
|
3.280
|
3.631
|
3.450
|
|
Mode
(inches):
|
6.200
|
2.200
|
6.370
|
3.650
|
5.350
|
4.780
|
4.300
|
N/A
|
|
Standard
Deviation (inches):
|
2.119
|
1.680
|
1.969
|
1.687
|
1.597
|
1.594
|
2.587
|
1.654
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|
June
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.559
|
3.339
|
3.675
|
3.483
|
3.788
|
3.705
|
3.855
|
3.792
|
|
Median
(inches):
|
3.530
|
2.840
|
3.295
|
3.390
|
3.740
|
3.540
|
3.500
|
3.505
|
|
Mode
(inches):
|
3.660
|
1.750
|
3.460
|
2.590
|
3.790
|
1.450
|
2.200
|
5.740
|
|
Standard
Deviation (inches):
|
1.839
|
1.797
|
2.449
|
2.056
|
2.059
|
1.866
|
1.932
|
2.410
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|
July
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
4.299
|
3.503
|
3.621
|
4.088
|
3.856
|
3.700
|
3.632
|
4.151
|
|
Median
(inches):
|
4.435
|
2.995
|
3.165
|
3.915
|
3.545
|
3.505
|
3.525
|
3.980
|
|
Mode
(inches):
|
5.850
|
1.120
|
3.010
|
2.620
|
4.250
|
1.230
|
2.550
|
3.790
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|
Standard
Deviation (inches):
|
2.373
|
20.61
|
1.941
|
2.351
|
1.586
|
1.799
|
1.449
|
1.888
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|
August
|
||||||||
|
Allentown
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Erie
|
Harrisburg
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Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
4.161
|
3.376
|
3.441
|
3.858
|
3.316
|
3.412
|
3.449
|
3.515
|
|
Median
(inches):
|
3.665
|
3.040
|
3.000
|
3.710
|
2.980
|
3.025
|
3.185
|
3.180
|
|
Mode
(inches):
|
2.140
|
3.520
|
2.970
|
5.950
|
1.790
|
2.040
|
2.790
|
2.280
|
|
Standard
Deviation (inches):
|
2.400
|
2.001
|
1.866
|
2.105
|
1.775
|
1.883
|
1.836
|
1.658
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|
September
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
4.219
|
4.012
|
3.420
|
3.567
|
2.894
|
3.578
|
3.466
|
3.697
|
|
Median
(inches):
|
3.465
|
3.580
|
2.725
|
2.990
|
2.785
|
2.930
|
2.840
|
3.175
|
|
Mode
(inches):
|
2.960
|
2.930
|
3.350
|
1.710
|
1.800
|
3.070
|
5.790
|
1.880
|
|
Standard
Deviation (inches):
|
2.585
|
1.954
|
2.450
|
2.318
|
1.540
|
2.255
|
2.958
|
2.531
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|
October
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.288
|
3.522
|
3.010
|
2.810
|
2.359
|
2.971
|
2.915
|
3.164
|
|
Median
(inches):
|
2.840
|
3.340
|
2.625
|
2.590
|
2.210
|
2.430
|
2.500
|
2.730
|
|
Mode
(inches):
|
6.840
|
1.720
|
1.400
|
2.160
|
2.270
|
N/A
|
2.260
|
N/A
|
|
Standard
Deviation (inches):
|
2.121
|
1.845
|
1.955
|
1.517
|
1.373
|
1.852
|
1.795
|
2.019
|
|
November
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.565
|
3.740
|
3.186
|
3.195
|
2.826
|
3.138
|
3.235
|
3.710
|
|
Median
(inches):
|
3.115
|
3.175
|
3.290
|
2.855
|
2.615
|
3.165
|
3.131
|
3.460
|
|
Mode
(inches):
|
1.660
|
2.990
|
4.710
|
5.710
|
2.430
|
2.630
|
3.980
|
5.080
|
|
Standard
Deviation (inches):
|
1.922
|
1.700
|
1.558
|
1.934
|
1.591
|
1.360
|
1.615
|
1.674
|
|
December
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.503
|
3.085
|
2.993
|
3.373
|
2.659
|
2.713
|
2.669
|
3.075
|
|
Median
(inches):
|
3.395
|
2.950
|
2.734
|
3.060
|
2.420
|
2.690
|
2.420
|
2.870
|
|
Mode
(inches):
|
N/A
|
2.800
|
1.560
|
2.110
|
3.240
|
3.090
|
2.260
|
3.200
|
|
Standard
Deviation (inches):
|
1.844
|
1.138
|
1.564
|
1.817
|
1.245
|
1.364
|
1.258
|
1.636
|
|
Monthly
|
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|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
3.426
|
3.232
|
3.283
|
3.413
|
3.084
|
3.067
|
3.284
|
3.404
|
|
Annual
|
||||||||
|
Allentown
|
Erie
|
Harrisburg
|
Philadelphia
|
Pittsburgh
|
Scranton
|
State
College
|
Williamsport
|
|
|
Average
(inches):
|
43.71
|
39.06
|
39.24
|
41.11
|
37.13
|
36.67
|
38.94
|
40.78
|
|
City
|
Dates
Used in Analysis
|
|
Allentown
|
January
1, 1948 through June 30, 2006
|
|
Erie
|
January
1, 1926 through June 30, 2006
|
|
Harrisburg
|
January
1, 1926 through December 31, 2003
|
|
Philadelphia
|
January
1, 1948 through June 30, 2006
|
|
Pittsburgh
|
January
1, 1948 through June 30, 2006
|
|
Scranton
|
January
1, 1949 through June 30, 2006
|
|
State College
|
January
1, 1926 through October 31, 2005
|
|
Williamsport
|
May 1, 1948
through June 30, 2006
|
|
*There
may be small gaps in data, however, they're negligible since it's such
a large date range.*
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Created: July 25, 2006 by Joey Mays
Last Edit: August 15, 2006
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