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Sitka water levels in 1990
Annual rank66 / 86
vs. average-5.1 cm
Highest monthly peak2.45 mDecember 1990
Monthly mean vs. previous year
| Month | 1990 (cm) | 1989 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 7.1 | 5.6 | 1.5 | 2.02 |
| Feb | 1.3 | -24.6 | 25.9 | 2.00 |
| Mar | -1.7 | 1.6 | -3.3 | 1.95 |
| Apr | -13.0 | -11.8 | -1.2 | 2.04 |
| May | -16.4 | -10.6 | -5.8 | 1.99 |
| Jun | -9.3 | -13.3 | 4.0 | 2.02 |
| Jul | -14.5 | -10.6 | -3.9 | 1.74 |
| Aug | -6.0 | -13.0 | 7.0 | 1.73 |
| Sep | -4.8 | -10.6 | 5.8 | 1.73 |
| Oct | 8.6 | 3.8 | 4.8 | 1.97 |
| Nov | 9.6 | 7.4 | 2.2 | 2.21 |
| Dec | -6.0 | 5.6 | -11.6 | 2.45 |
Nearby years (cm vs. average)
-7.6
+0.1
+4.3
+1.4
-7.3
-5.1
-3.8
+2.7
-2.0
-2.3
-4.7
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1990 annual mean water level ranked 66 of 86 years (-5.1 cm vs. the period average).