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Charlotte Amalie, St. Thomas Island water levels in 1990
Annual rank33 / 43
vs. average-4.0 cm
Highest monthly peak0.35 mOctober 1990
Monthly mean vs. previous year
| Month | 1990 (cm) | 1989 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -2.3 | -8.7 | 6.4 | 0.21 |
| Feb | -8.1 | -12.1 | 4.0 | 0.18 |
| Mar | -9.0 | -12.4 | 3.4 | 0.07 |
| Apr | -5.7 | -7.2 | 1.5 | 0.14 |
| May | -6.0 | -5.1 | -0.9 | 0.15 |
| Jun | -4.8 | -4.5 | -0.3 | 0.21 |
| Jul | -2.6 | -0.8 | -1.8 | 0.21 |
| Aug | 0.7 | -0.5 | 1.2 | 0.21 |
| Sep | 3.8 | 2.8 | 1.0 | 0.23 |
| Oct | 6.8 | 2.8 | 4.0 | 0.35 |
| Nov | 4.7 | 1.6 | 3.1 | 0.29 |
| Dec | 2.2 | -2.0 | 4.2 | 0.31 |
Nearby years (cm vs. average)
-1.5
-1.3
-4.9
-6.2
-6.2
-4.0
+1.3
+0.5
-2.3
+0.8
-4.3
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1990 annual mean water level ranked 33 of 43 years (-4.0 cm vs. the period average).