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San Francisco (Golden Gate) water levels in 1991
Annual rank44 / 170
vs. average6.0 cm
Highest monthly peak1.22 mJune 1991
Monthly mean vs. previous year
| Month | 1991 (cm) | 1990 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -6.6 | -1.8 | -4.8 | 1.17 |
| Feb | -1.8 | -7.2 | 5.4 | 1.16 |
| Mar | -1.5 | -10.3 | 8.8 | 1.10 |
| Apr | -17.6 | -5.4 | -12.2 | 0.95 |
| May | -16.4 | -6.0 | -10.4 | 1.00 |
| Jun | -6.0 | -5.7 | -0.3 | 1.22 |
| Jul | -0.2 | 1.6 | -1.8 | 1.21 |
| Aug | 0.1 | 4.3 | -4.2 | 1.19 |
| Sep | 3.7 | 4.9 | -1.2 | 1.03 |
| Oct | 4.6 | 0.1 | 4.5 | 1.14 |
| Nov | -3.3 | -4.8 | 1.5 | 1.13 |
| Dec | 2.5 | -5.4 | 7.9 | 1.20 |
Nearby years (cm vs. average)
+10.7
+8.1
+2.6
+5.0
+6.6
+6.0
+14.4
+13.5
+5.6
+13.0
+9.1
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1991 annual mean water level ranked 44 of 170 years (6.0 cm vs. the period average).