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Port Chicago, Suisun Bay water levels in 1991
Annual rank43 / 48
vs. average-7.1 cm
Highest monthly peak1.00 mJune 1991
Monthly mean vs. previous year
| Month | 1991 (cm) | 1990 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -11.2 | -9.4 | -1.8 | 0.87 |
| Feb | -7.3 | -14.6 | 7.3 | 0.90 |
| Mar | -1.5 | -15.2 | 13.7 | 0.91 |
| Apr | -18.9 | -9.4 | -9.5 | 0.77 |
| May | -14.3 | -10.0 | -4.3 | 0.84 |
| Jun | -5.1 | -7.3 | 2.2 | 1.00 |
| Jul | 2.2 | 0.3 | 1.9 | 1.00 |
| Aug | -0.9 | 1.0 | -1.9 | 0.95 |
| Sep | 3.1 | -0.3 | 3.4 | 0.86 |
| Oct | -0.3 | -3.3 | 3.0 | 0.98 |
| Nov | -9.1 | -9.4 | 0.3 | 0.84 |
| Dec | -4.8 | -10.6 | 5.8 | 0.92 |
Nearby years (cm vs. average)
+1.6
-4.0
-10.5
-8.6
-8.8
-7.1
+0.2
+2.0
-6.4
+6.2
-0.7
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1991 annual mean water level ranked 43 of 48 years (-7.1 cm vs. the period average).