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Humboldt Bay (North Spit) water levels in 1999
Annual rank38 / 46
vs. average-7.5 cm
Highest monthly peak1.46 mDecember 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 0.7 | 32.4 | -31.7 | 1.38 |
| Feb | 4.4 | 34.1 | -29.7 | 1.28 |
| Mar | 4.5 | 8.7 | -4.2 | 1.21 |
| Apr | -11.5 | 0.1 | -11.6 | 1.19 |
| May | -13.7 | 3.3 | -17.0 | 1.21 |
| Jun | -8.8 | 1.5 | -10.3 | 1.34 |
| Jul | -3.5 | 0.3 | -3.8 | 1.38 |
| Aug | -0.5 | 2.0 | -2.5 | 1.36 |
| Sep | 2.3 | 6.5 | -4.2 | 1.17 |
| Oct | -1.7 | -0.6 | -1.1 | 1.41 |
| Nov | 5.3 | 8.3 | -3.0 | 1.35 |
| Dec | -5.6 | -6.0 | 0.4 | 1.46 |
Nearby years (cm vs. average)
-5.3
-0.6
-3.2
+2.1
+2.3
-7.5
-3.8
-4.6
-2.4
+1.0
+0.6
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 38 of 46 years (-7.5 cm vs. the period average).