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Baltimore, Fort McHenry water levels in 2017
Annual rank10 / 123
vs. average19.0 cm
Highest monthly peak0.91 mOctober 2017
Monthly mean vs. previous year
| Month | 2017 (cm) | 2016 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -2.4 | -5.1 | 2.7 | 0.58 |
| Feb | -2.7 | -1.2 | -1.5 | 0.46 |
| Mar | -14.7 | 4.4 | -19.1 | 0.54 |
| Apr | 16.3 | 9.8 | 6.5 | 0.76 |
| May | 22.9 | 11.8 | 11.1 | 0.80 |
| Jun | 19.7 | 13.3 | 6.4 | 0.70 |
| Jul | 19.3 | 14.9 | 4.4 | 0.70 |
| Aug | 23.5 | 15.8 | 7.7 | 0.76 |
| Sep | 22.9 | 28.2 | -5.3 | 0.73 |
| Oct | 19.9 | 16.0 | 3.9 | 0.91 |
| Nov | 11.1 | 2.0 | 9.1 | 0.78 |
| Dec | -5.4 | -4.9 | -0.5 | 0.61 |
Nearby years (cm vs. average)
+18.3
+15.3
+16.5
+14.2
+16.9
+19.0
+20.7
+24.2
+22.8
+21.2
+19.5
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2017 annual mean water level ranked 10 of 123 years (19.0 cm vs. the period average).