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Portland water levels in 2004
Annual rank30 / 114
vs. average4.3 cm
Highest monthly peak2.27 mDecember 2004
Monthly mean vs. previous year
| Month | 2004 (cm) | 2003 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -3.9 | -2.0 | -1.9 | 2.03 |
| Feb | -7.7 | -11.7 | 4.0 | 2.15 |
| Mar | -5.0 | -9.4 | 4.4 | 1.89 |
| Apr | -2.0 | -2.0 | 0.0 | 1.98 |
| May | -1.0 | 2.7 | -3.7 | 2.06 |
| Jun | 3.0 | 5.4 | -2.4 | 2.12 |
| Jul | 2.4 | 4.3 | -1.9 | 2.09 |
| Aug | 2.5 | 3.1 | -0.6 | 2.02 |
| Sep | 4.7 | 2.8 | 1.9 | 1.84 |
| Oct | 12.2 | 2.6 | 9.6 | 1.98 |
| Nov | 6.6 | 1.8 | 4.8 | 1.99 |
| Dec | 5.3 | 2.9 | 2.4 | 2.27 |
Nearby years (cm vs. average)
+2.0
+2.3
+2.0
+0.8
+2.9
+4.3
+9.9
+7.4
+1.9
+3.9
+9.3
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2004 annual mean water level ranked 30 of 114 years (4.3 cm vs. the period average).