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San Francisco (Golden Gate) water levels in 1999
Annual rank53 / 170
vs. average4.5 cm
Highest monthly peak1.24 mJuly 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -4.7 | 20.8 | -25.5 | 1.11 |
| Feb | -4.1 | 30.9 | -35.0 | 0.91 |
| Mar | -1.6 | 8.6 | -10.2 | 0.98 |
| Apr | -10.1 | 0.3 | -10.4 | 0.98 |
| May | -10.6 | 1.4 | -12.0 | 1.02 |
| Jun | -5.3 | 5.3 | -10.6 | 1.11 |
| Jul | -1.0 | 4.3 | -5.3 | 1.24 |
| Aug | -2.2 | 6.8 | -9.0 | 1.13 |
| Sep | 0.9 | 8.7 | -7.8 | 1.03 |
| Oct | -3.8 | -1.8 | -2.0 | 1.05 |
| Nov | -5.5 | -2.2 | -3.3 | 1.04 |
| Dec | -12.5 | -9.5 | -3.0 | 1.16 |
Nearby years (cm vs. average)
+5.6
+13.0
+9.1
+15.1
+15.7
+4.5
+6.7
+6.8
+8.3
+9.5
+10.0
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 53 of 170 years (4.5 cm vs. the period average).