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East Point, Grand Isle water levels in 1991
Annual rank26 / 48
vs. average-3.3 cm
Highest monthly peak0.41 mMay 1991
Monthly mean vs. previous year
| Month | 1991 (cm) | 1990 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -23.4 | -40.4 | 17.0 | 0.20 |
| Feb | -28.5 | -28.5 | 0.0 | 0.01 |
| Mar | -20.6 | -18.5 | -2.1 | 0.13 |
| Apr | -8.7 | -17.6 | 8.9 | 0.32 |
| May | 2.2 | -8.7 | 10.9 | 0.41 |
| Jun | -10.0 | -15.7 | 5.7 | – |
| Jul | -18.5 | -15.4 | -3.1 | 0.12 |
| Aug | -17.9 | -13.0 | -4.9 | 0.12 |
| Sep | -3.9 | -8.7 | 4.8 | 0.29 |
| Oct | -7.2 | -15.7 | 8.5 | 0.37 |
| Nov | -16.0 | -12.1 | -3.9 | 0.24 |
| Dec | -24.0 | -25.8 | 1.8 | 0.24 |
Nearby years (cm vs. average)
-10.6
-13.2
-15.7
-13.9
-7.0
-3.3
-6.2
-7.1
-5.4
-3.6
-7.1
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1991 annual mean water level ranked 26 of 48 years (-3.3 cm vs. the period average).