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Hilo water levels in 2009
Annual rank39 / 83
vs. average1.7 cm
Highest monthly peak0.70 mJanuary 2009
Monthly mean vs. previous year
| Month | 2009 (cm) | 2008 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 1.2 | 2.1 | -0.9 | 0.70 |
| Feb | -3.5 | -1.7 | -1.8 | 0.58 |
| Mar | -6.1 | -0.7 | -5.4 | 0.48 |
| Apr | -7.4 | 1.3 | -8.7 | 0.52 |
| May | -1.3 | 2.8 | -4.1 | 0.69 |
| Jun | -0.9 | 1.2 | -2.1 | 0.60 |
| Jul | 0.5 | 7.2 | -6.7 | 0.67 |
| Aug | 11.8 | 5.1 | 6.7 | 0.70 |
| Sep | 2.9 | 8.9 | -6.0 | 0.47 |
| Oct | -1.6 | 8.0 | -9.6 | 0.44 |
| Nov | -7.0 | 4.0 | -11.0 | 0.45 |
| Dec | -2.1 | 3.1 | -5.2 | 0.61 |
Nearby years (cm vs. average)
+12.7
+8.2
+7.5
+6.8
+6.3
+1.7
+6.3
+4.7
+1.8
+7.8
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2009 annual mean water level ranked 39 of 83 years (1.7 cm vs. the period average).