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East Point, Grand Isle water levels in 1999
Annual rank25 / 48
vs. average-2.4 cm
Highest monthly peak0.36 mMarch 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -22.3 | -26.2 | 3.9 | 0.15 |
| Feb | -18.5 | -18.1 | -0.4 | 0.06 |
| Mar | -15.2 | -17.2 | 2.0 | 0.36 |
| Apr | -13.7 | -11.7 | -2.0 | 0.12 |
| May | -8.5 | -7.7 | -0.8 | 0.32 |
| Jun | -10.1 | -12.4 | 2.3 | 0.15 |
| Jul | -13.1 | -19.9 | 6.8 | 0.18 |
| Aug | -15.8 | -6.6 | -9.2 | 0.12 |
| Sep | -2.0 | 13.5 | -15.5 | 0.32 |
| Oct | -5.2 | -0.6 | -4.6 | 0.28 |
| Nov | -16.2 | -12.9 | -3.3 | 0.16 |
| Dec | -24.5 | -22.3 | -2.2 | 0.27 |
Nearby years (cm vs. average)
-5.4
-3.6
-7.1
-5.0
-0.5
-2.4
-6.2
-5.3
+0.4
+0.3
-0.4
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 25 of 48 years (-2.4 cm vs. the period average).