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San Francisco (Golden Gate) water levels in 2009
Annual rank25 / 170
vs. average9.6 cm
Highest monthly peak1.31 mJune 2009
Monthly mean vs. previous year
| Month | 2009 (cm) | 2008 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -8.0 | 1.7 | -9.7 | 1.10 |
| Feb | 0.9 | -3.4 | 4.3 | 1.19 |
| Mar | -6.3 | -16.1 | 9.8 | 0.96 |
| Apr | -13.5 | -15.8 | 2.3 | 0.96 |
| May | -5.7 | -8.2 | 2.5 | 1.16 |
| Jun | 3.9 | -3.9 | 7.8 | 1.31 |
| Jul | 2.4 | 5.8 | -3.4 | 1.23 |
| Aug | 5.4 | 8.6 | -3.2 | 1.20 |
| Sep | 6.1 | 8.7 | -2.6 | 1.04 |
| Oct | 7.3 | -0.7 | 8.0 | 1.17 |
| Nov | -0.8 | -1.4 | 0.6 | 1.16 |
| Dec | 8.4 | -2.3 | 10.7 | 1.22 |
Nearby years (cm vs. average)
+10.0
+12.1
+14.7
+3.6
+7.3
+9.6
+10.7
+10.2
+9.1
+7.7
+15.9
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2009 annual mean water level ranked 25 of 170 years (9.6 cm vs. the period average).