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Astoria (Tongue Point), Oreg. water levels in 1999
Annual rank40 / 99
vs. average1.0 cm
Highest monthly peak2.13 mMarch 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 17.6 | 41.2 | -23.6 | 2.01 |
| Feb | 30.2 | 39.5 | -9.3 | 1.84 |
| Mar | 19.4 | 8.3 | 11.1 | 2.13 |
| Apr | -8.3 | -4.4 | -3.9 | 1.57 |
| May | -5.6 | 6.9 | -12.5 | 1.76 |
| Jun | -1.6 | -0.4 | -1.2 | 1.80 |
| Jul | -9.0 | -8.6 | -0.4 | 1.59 |
| Aug | -8.4 | -14.6 | 6.2 | 1.60 |
| Sep | -17.3 | -13.0 | -4.3 | 1.37 |
| Oct | -15.2 | -10.1 | -5.1 | 1.80 |
| Nov | 10.0 | 17.0 | -7.0 | 2.06 |
| Dec | 8.3 | 10.9 | -2.6 | 1.71 |
Nearby years (cm vs. average)
-3.3
+4.1
+5.4
+12.4
+5.3
+1.0
-5.1
-9.9
-4.5
-0.7
-2.5
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 40 of 99 years (1.0 cm vs. the period average).