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Port Chicago, Suisun Bay water levels in 2021
Annual rank25 / 48
vs. average-0.6 cm
Highest monthly peak1.13 mOctober 2021
Monthly mean vs. previous year
| Month | 2021 (cm) | 2020 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -2.0 | -1.0 | -1.0 | 0.98 |
| Feb | -8.5 | -1.6 | -6.9 | 0.88 |
| Mar | -9.5 | 2.2 | -11.7 | 0.73 |
| Apr | -4.0 | -2.1 | -1.9 | 0.83 |
| May | -2.4 | 1.5 | -3.9 | 0.93 |
| Jun | 4.4 | 5.8 | -1.4 | 1.04 |
| Jul | 9.3 | 12.0 | -2.7 | 1.01 |
| Aug | 11.4 | 10.5 | 0.9 | 1.02 |
| Sep | 6.7 | 7.0 | -0.3 | 0.87 |
| Oct | 2.9 | 3.6 | -0.7 | 1.13 |
| Nov | -5.4 | -4.8 | -0.6 | 0.88 |
| Dec | 6.4 | -6.6 | 13.0 | 1.09 |
Nearby years (cm vs. average)
+3.1
+13.3
+4.3
+10.8
+0.8
-0.6
-2.2
+9.8
+5.3
+5.2
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2021 annual mean water level ranked 25 of 48 years (-0.6 cm vs. the period average).