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Astoria (Tongue Point), Oreg. water levels in 1991
Annual rank77 / 99
vs. average-2.9 cm
Highest monthly peak1.87 mDecember 1991
Monthly mean vs. previous year
| Month | 1991 (cm) | 1990 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 2.8 | 13.8 | -11.0 | 1.73 |
| Feb | 11.9 | 9.8 | 2.1 | 1.71 |
| Mar | 10.4 | -1.8 | 12.2 | 1.83 |
| Apr | -0.3 | -3.3 | 3.0 | 1.58 |
| May | -4.5 | -7.3 | 2.8 | 1.66 |
| Jun | -10.0 | 3.7 | -13.7 | 1.65 |
| Jul | -13.1 | -9.4 | -3.7 | 1.66 |
| Aug | -6.7 | -9.1 | 2.4 | 1.71 |
| Sep | -14.3 | -10.3 | -4.0 | 1.42 |
| Oct | -12.2 | -7.9 | -4.3 | 1.74 |
| Nov | 0.6 | 8.3 | -7.7 | 1.77 |
| Dec | 8.9 | 0.6 | 8.3 | 1.87 |
Nearby years (cm vs. average)
-1.1
-3.8
-8.1
-7.5
-1.8
-2.9
-1.1
-2.5
-3.3
+4.1
+5.4
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1991 annual mean water level ranked 77 of 99 years (-2.9 cm vs. the period average).