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Ketchikan water levels in 1999
Annual rank61 / 105
vs. average-0.8 cm
Highest monthly peak3.72 mNovember 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 2.1 | 29.8 | -27.7 | 3.20 |
| Feb | 21.5 | 34.4 | -12.9 | 3.20 |
| Mar | 8.8 | -2.4 | 11.2 | 3.00 |
| Apr | -13.7 | -10.4 | -3.3 | 3.15 |
| May | -9.5 | -13.4 | 3.9 | 3.16 |
| Jun | -6.0 | -15.9 | 9.9 | 3.17 |
| Jul | -13.4 | -14.2 | 0.8 | 3.01 |
| Aug | -8.9 | -12.6 | 3.7 | 2.96 |
| Sep | -12.6 | -9.9 | -2.7 | 2.92 |
| Oct | -3.5 | 0.8 | -4.3 | 3.46 |
| Nov | 18.6 | 13.7 | 4.9 | 3.72 |
| Dec | 3.1 | 4.8 | -1.7 | 3.24 |
Nearby years (cm vs. average)
+0.7
-2.1
-2.8
+4.7
+0.7
-0.8
-3.8
-1.9
-5.3
+0.9
-2.1
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 61 of 105 years (-0.8 cm vs. the period average).