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Hilo water levels in 2021
Annual rank9 / 83
vs. average11.2 cm
Highest monthly peak0.84 mDecember 2021
Monthly mean vs. previous year
| Month | 2021 (cm) | 2020 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 13.9 | 16.6 | -2.7 | 0.74 |
| Feb | 15.0 | 7.5 | 7.5 | 0.76 |
| Mar | 7.3 | 11.7 | -4.4 | 0.56 |
| Apr | 7.1 | 5.1 | 2.0 | 0.66 |
| May | 10.0 | 13.4 | -3.4 | 0.68 |
| Jun | 2.7 | 17.8 | -15.1 | 0.58 |
| Jul | 3.5 | 20.3 | -16.8 | 0.62 |
| Aug | 10.3 | 25.1 | -14.8 | 0.66 |
| Sep | 9.6 | 16.1 | -6.5 | 0.60 |
| Oct | 5.6 | 18.5 | -12.9 | 0.57 |
| Nov | 6.9 | 19.5 | -12.6 | 0.57 |
| Dec | 8.1 | 16.9 | -8.8 | 0.84 |
Nearby years (cm vs. average)
+13.5
+18.1
+13.1
+13.6
+18.5
+11.2
+8.0
+11.0
+16.6
+14.8
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2021 annual mean water level ranked 9 of 83 years (11.2 cm vs. the period average).