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Honolulu water levels in 1999
Annual rank31 / 114
vs. average3.4 cm
Highest monthly peak0.59 mNovember 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -1.3 | -4.4 | 3.1 | 0.47 |
| Feb | -2.7 | -9.1 | 6.4 | 0.43 |
| Mar | -2.8 | -4.0 | 1.2 | 0.40 |
| Apr | -4.4 | -4.9 | 0.5 | 0.35 |
| May | -5.8 | -5.7 | -0.1 | 0.41 |
| Jun | -0.8 | -7.2 | 6.4 | 0.50 |
| Jul | 0.4 | -9.2 | 9.6 | 0.50 |
| Aug | 4.0 | 1.3 | 2.7 | 0.49 |
| Sep | 11.2 | 5.4 | 5.8 | 0.52 |
| Oct | 8.1 | -2.7 | 10.8 | 0.48 |
| Nov | 5.7 | -1.7 | 7.4 | 0.59 |
| Dec | 1.8 | -5.5 | 7.3 | 0.57 |
Nearby years (cm vs. average)
+2.4
+8.7
+6.9
+5.4
-1.7
+3.4
+0.1
+1.6
+1.0
+8.3
+8.4
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 31 of 114 years (3.4 cm vs. the period average).