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Portland water levels in 2020
Annual rank9 / 114
vs. average11.0 cm
Highest monthly peak2.29 mApril 2020
Monthly mean vs. previous year
| Month | 2020 (cm) | 2019 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 8.4 | 5.1 | 3.3 | 1.88 |
| Feb | 4.0 | -2.6 | 6.6 | 2.04 |
| Mar | 6.7 | 2.6 | 4.1 | 2.12 |
| Apr | 17.2 | 4.9 | 12.3 | 2.29 |
| May | 4.4 | 13.3 | -8.9 | 2.28 |
| Jun | 10.8 | 13.8 | -3.0 | 2.13 |
| Jul | 13.4 | 13.3 | 0.1 | 2.07 |
| Aug | 11.0 | 11.6 | -0.6 | 1.95 |
| Sep | 6.7 | 8.8 | -2.1 | 2.17 |
| Oct | 5.5 | 15.7 | -10.2 | 2.06 |
| Nov | 2.4 | 9.4 | -7.0 | 2.15 |
| Dec | 7.3 | 7.5 | -0.2 | 2.19 |
Nearby years (cm vs. average)
+3.1
+7.1
+10.3
+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 2020 annual mean water level ranked 9 of 114 years (11.0 cm vs. the period average).