Tide TablesHome › Tide tables & water levels › Baltimore, Fort McHenry
Baltimore, Fort McHenry water levels in 1999
Annual rank28 / 123
vs. average9.8 cm
Highest monthly peak0.81 mSeptember 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -8.8 | 4.9 | -13.7 | 0.56 |
| Feb | 1.3 | 15.4 | -14.1 | 0.47 |
| Mar | -11.0 | 3.7 | -14.7 | 0.52 |
| Apr | 4.2 | 11.9 | -7.7 | 0.58 |
| May | 8.6 | 17.9 | -9.3 | 0.54 |
| Jun | 6.7 | 10.3 | -3.6 | 0.57 |
| Jul | 7.5 | 10.9 | -3.4 | 0.64 |
| Aug | 11.1 | 14.9 | -3.8 | 0.58 |
| Sep | 13.2 | 13.8 | -0.6 | 0.81 |
| Oct | 3.5 | 3.7 | -0.2 | 0.55 |
| Nov | -5.6 | -1.6 | -4.0 | 0.75 |
| Dec | -10.2 | -6.2 | -4.0 | 0.52 |
Nearby years (cm vs. average)
+6.4
+8.3
+14.4
+12.2
+16.4
+9.8
+6.3
+8.6
+7.0
+11.1
+11.1
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 28 of 123 years (9.8 cm vs. the period average).