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Portland water levels in 2023
Annual rank1 / 114
vs. average18.3 cm
Highest monthly peak2.34 mJanuary 2023
Monthly mean vs. previous year
| Month | 2023 (cm) | 2022 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 13.3 | 3.9 | 9.4 | 2.34 |
| Feb | 6.7 | -7.9 | 14.6 | 2.16 |
| Mar | 18.4 | 1.5 | 16.9 | 2.00 |
| Apr | 13.3 | 6.8 | 6.5 | 1.96 |
| May | 13.7 | 10.8 | 2.9 | 1.95 |
| Jun | 19.5 | 13.4 | 6.1 | 2.16 |
| Jul | 18.1 | 10.6 | 7.5 | 2.14 |
| Aug | 15.8 | 11.0 | 4.8 | 2.14 |
| Sep | 14.1 | 12.2 | 1.9 | 2.10 |
| Oct | 22.5 | 10.7 | 11.8 | 2.06 |
| Nov | 16.0 | 6.2 | 9.8 | 2.12 |
| Dec | 13.8 | 10.0 | 3.8 | 2.11 |
Nearby years (cm vs. average)
+10.2
+11.5
+11.0
+11.3
+10.3
+18.3
+16.8
+11.9
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2023 annual mean water level ranked 1 of 114 years (18.3 cm vs. the period average).