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Baltimore, Fort McHenry water levels in 2018
Annual rank7 / 123
vs. average20.7 cm
Highest monthly peak0.92 mSeptember 2018
Monthly mean vs. previous year
| Month | 2018 (cm) | 2017 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -20.9 | -2.4 | -18.5 | 0.39 |
| Feb | -3.3 | -2.7 | -0.6 | 0.54 |
| Mar | 1.7 | -14.7 | 16.4 | 0.91 |
| Apr | 6.5 | 16.3 | -9.8 | 0.87 |
| May | 15.9 | 22.9 | -7.0 | 0.67 |
| Jun | 25.5 | 19.7 | 5.8 | 0.76 |
| Jul | 25.0 | 19.3 | 5.7 | 0.82 |
| Aug | 21.2 | 23.5 | -2.3 | 0.73 |
| Sep | 37.1 | 22.9 | 14.2 | 0.92 |
| Oct | 18.9 | 19.9 | -1.0 | 0.68 |
| Nov | 9.1 | 11.1 | -2.0 | 0.87 |
| Dec | 14.2 | -5.4 | 19.6 | 0.82 |
Nearby years (cm vs. average)
+15.3
+16.5
+14.2
+16.9
+19.0
+20.7
+24.2
+22.8
+21.2
+19.5
+27.0
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2018 annual mean water level ranked 7 of 123 years (20.7 cm vs. the period average).