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Anchorage, Knik Arm water levels in 1990
Annual rank19 / 46
vs. average0.9 cm
Highest monthly peak5.31 mDecember 1990
Monthly mean vs. previous year
| Month | 1990 (cm) | 1989 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 7.0 | -8.2 | 15.2 | 4.92 |
| Feb | -5.2 | -25.3 | 20.1 | 5.17 |
| Mar | 2.1 | -6.4 | 8.5 | – |
| Apr | -14.3 | -16.1 | 1.8 | – |
| May | -15.8 | -12.8 | -3.0 | 4.81 |
| Jun | -6.4 | -8.2 | 1.8 | 4.76 |
| Jul | -1.2 | -1.5 | 0.3 | 4.64 |
| Aug | 7.3 | 4.0 | 3.3 | 4.65 |
| Sep | 10.1 | 7.3 | 2.8 | 4.68 |
| Oct | 10.1 | 11.6 | -1.5 | 4.97 |
| Nov | -3.9 | 1.5 | -5.4 | 4.90 |
| Dec | -2.1 | 11.0 | -13.1 | 5.31 |
Nearby years (cm vs. average)
-3.5
+1.8
+10.6
+8.1
-1.7
+0.9
+3.8
+9.7
+7.9
+4.3
+3.8
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1990 annual mean water level ranked 19 of 46 years (0.9 cm vs. the period average).