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Portland water levels in 2015
Annual rank37 / 114
vs. average3.1 cm
Highest monthly peak2.25 mFebruary 2015
Monthly mean vs. previous year
| Month | 2015 (cm) | 2014 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -4.1 | 2.7 | -6.8 | 2.22 |
| Feb | -2.0 | -1.3 | -0.7 | 2.25 |
| Mar | -9.2 | 0.7 | -9.9 | 2.15 |
| Apr | 0.3 | 5.6 | -5.3 | 2.21 |
| May | -3.0 | 10.3 | -13.3 | 1.98 |
| Jun | 3.5 | 9.1 | -5.6 | 1.85 |
| Jul | 7.3 | 7.6 | -0.3 | 1.92 |
| Aug | 4.6 | 8.7 | -4.1 | 2.01 |
| Sep | 2.5 | 5.2 | -2.7 | 2.19 |
| Oct | 4.4 | 13.4 | -9.0 | 2.15 |
| Nov | -1.8 | 4.8 | -6.6 | 1.80 |
| Dec | 0.4 | 4.1 | -3.7 | 1.98 |
Nearby years (cm vs. average)
+16.7
+12.0
+11.4
+9.6
+8.8
+3.1
+7.1
+10.3
+10.2
+11.5
+11.0
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2015 annual mean water level ranked 37 of 114 years (3.1 cm vs. the period average).