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Hilo water levels in 1990
Annual rank50 / 83
vs. average-1.9 cm
Highest monthly peak0.74 mDecember 1990
Monthly mean vs. previous year
| Month | 1990 (cm) | 1989 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -6.7 | -3.6 | -3.1 | 0.53 |
| Feb | -5.5 | -0.9 | -4.6 | 0.50 |
| Mar | -7.0 | 1.9 | -8.9 | 0.41 |
| Apr | -5.1 | -0.3 | -4.8 | 0.55 |
| May | -10.6 | -6.1 | -4.5 | 0.49 |
| Jun | -10.9 | -0.6 | -10.3 | 0.52 |
| Jul | -7.6 | -3.9 | -3.7 | 0.53 |
| Aug | -3.0 | 3.7 | -6.7 | 0.51 |
| Sep | 0.6 | 2.5 | -1.9 | 0.47 |
| Oct | 2.8 | 1.6 | 1.2 | 0.52 |
| Nov | -3.9 | 0.9 | -4.8 | 0.60 |
| Dec | -0.3 | -6.1 | 5.8 | 0.74 |
Nearby years (cm vs. average)
+0.8
-2.7
+3.4
+5.4
+1.9
-1.9
+1.1
+6.8
+7.2
+0.7
+4.8
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1990 annual mean water level ranked 50 of 83 years (-1.9 cm vs. the period average).