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Baltimore, Fort McHenry water levels in 1991
Annual rank34 / 123
vs. average7.5 cm
Highest monthly peak0.91 mNovember 1991
Monthly mean vs. previous year
| Month | 1991 (cm) | 1990 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -7.8 | -17.8 | 10.0 | 0.56 |
| Feb | -11.7 | -14.5 | 2.8 | 0.54 |
| Mar | -0.1 | -12.6 | 12.5 | 0.51 |
| Apr | -0.5 | -7.8 | 7.3 | 0.61 |
| May | 3.2 | 1.7 | 1.5 | 0.58 |
| Jun | 6.3 | 2.3 | 4.0 | 0.55 |
| Jul | 7.5 | 3.5 | 4.0 | 0.61 |
| Aug | 5.6 | 8.7 | -3.1 | 0.72 |
| Sep | 5.3 | 6.9 | -1.6 | 0.58 |
| Oct | 2.6 | 3.8 | -1.2 | 0.56 |
| Nov | -2.9 | -8.7 | 5.8 | 0.91 |
| Dec | -15.4 | -9.6 | -5.8 | 0.52 |
Nearby years (cm vs. average)
+4.6
+6.6
+2.9
+2.7
+4.5
+7.5
+8.7
+11.0
+6.4
+8.3
+14.4
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1991 annual mean water level ranked 34 of 123 years (7.5 cm vs. the period average).