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San Francisco (Golden Gate) water levels in 2018
Annual rank13 / 170
vs. average14.3 cm
Highest monthly peak1.33 mJuly 2018
Monthly mean vs. previous year
| Month | 2018 (cm) | 2017 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 2.2 | 16.9 | -14.7 | 1.27 |
| Feb | -1.5 | 21.4 | -22.9 | 1.13 |
| Mar | 2.6 | 6.1 | -3.5 | 1.16 |
| Apr | -3.5 | 1.7 | -5.2 | 0.94 |
| May | -0.5 | 2.3 | -2.8 | 1.07 |
| Jun | 2.3 | 4.8 | -2.5 | 1.29 |
| Jul | 6.3 | 6.7 | -0.4 | 1.33 |
| Aug | 9.0 | 11.7 | -2.7 | 1.27 |
| Sep | 9.2 | 12.9 | -3.7 | 1.10 |
| Oct | 12.6 | 4.9 | 7.7 | 1.13 |
| Nov | 10.8 | 5.4 | 5.4 | 1.21 |
| Dec | 7.4 | 1.4 | 6.0 | 1.30 |
Nearby years (cm vs. average)
+7.7
+15.9
+18.6
+14.4
+17.6
+14.3
+19.2
+12.8
+12.3
+11.3
+21.1
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2018 annual mean water level ranked 13 of 170 years (14.3 cm vs. the period average).