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Philadelphia, US Coast Guard Station, Pa. water levels in 2017
Annual rank14 / 36
vs. average2.4 cm
Highest monthly peak1.62 mMay 2017
Monthly mean vs. previous year
| Month | 2017 (cm) | 2016 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -2.8 | -2.0 | -0.8 | 1.28 |
| Feb | -6.6 | 3.4 | -10.0 | 1.26 |
| Mar | -14.9 | 4.3 | -19.2 | 1.34 |
| Apr | 21.2 | 6.5 | 14.7 | 1.48 |
| May | 22.0 | 11.3 | 10.7 | 1.62 |
| Jun | 17.0 | 9.1 | 7.9 | 1.44 |
| Jul | 19.4 | 11.0 | 8.4 | 1.60 |
| Aug | 19.5 | 10.2 | 9.3 | 1.39 |
| Sep | 19.1 | 21.2 | -2.1 | 1.41 |
| Oct | 13.4 | 11.3 | 2.1 | 1.46 |
| Nov | 6.8 | -3.8 | 10.6 | 1.47 |
| Dec | -11.4 | -9.6 | -1.8 | 1.35 |
Nearby years (cm vs. average)
+2.0
-1.1
+1.1
-2.8
-0.1
+2.4
+9.3
+10.6
+7.8
+7.3
+4.4
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2017 annual mean water level ranked 14 of 36 years (2.4 cm vs. the period average).