Tide TablesHome › Tide tables & water levels › Portland
Portland water levels in 2018
Annual rank12 / 114
vs. average10.2 cm
Highest monthly peak2.61 mJanuary 2018
Monthly mean vs. previous year
| Month | 2018 (cm) | 2017 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -4.8 | 3.8 | -8.6 | 2.61 |
| Feb | -6.8 | 6.8 | -13.6 | 2.15 |
| Mar | 19.3 | -3.3 | 22.6 | 2.51 |
| Apr | 6.3 | 10.1 | -3.8 | 2.08 |
| May | 7.1 | 16.2 | -9.1 | 2.06 |
| Jun | 13.6 | 12.4 | 1.2 | 2.26 |
| Jul | 6.8 | 10.3 | -3.5 | 2.14 |
| Aug | 11.7 | 8.3 | 3.4 | 2.15 |
| Sep | 11.3 | 10.6 | 0.7 | 2.09 |
| Oct | 11.0 | 8.1 | 2.9 | 2.07 |
| Nov | 7.6 | 7.0 | 0.6 | 2.31 |
| Dec | 5.2 | -1.4 | 6.6 | 2.22 |
Nearby years (cm vs. average)
+9.6
+8.8
+3.1
+7.1
+10.3
+10.2
+11.5
+11.0
+11.3
+10.3
+18.3
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2018 annual mean water level ranked 12 of 114 years (10.2 cm vs. the period average).