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Charleston water levels in 2011
Annual rank34 / 54
vs. average-1.8 cm
Highest monthly peak1.87 mNovember 2011
Monthly mean vs. previous year
| Month | 2011 (cm) | 2010 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 3.7 | 32.9 | -29.2 | 1.47 |
| Feb | -0.3 | 21.4 | -21.7 | 1.54 |
| Mar | 18.4 | 8.6 | 9.8 | 1.73 |
| Apr | -3.7 | 6.9 | -10.6 | 1.53 |
| May | -4.9 | -7.6 | 2.7 | 1.63 |
| Jun | -4.6 | -9.6 | 5.0 | 1.35 |
| Jul | -5.5 | -12.7 | 7.2 | 1.33 |
| Aug | -5.9 | -8.0 | 2.1 | 1.28 |
| Sep | -3.5 | -5.1 | 1.6 | 1.61 |
| Oct | -0.5 | -2.1 | 1.6 | 1.50 |
| Nov | 2.2 | 2.7 | -0.5 | 1.87 |
| Dec | -12.5 | 24.1 | -36.6 | 1.44 |
Nearby years (cm vs. average)
+2.9
-4.4
-3.6
-1.9
+3.9
-1.8
+2.2
-6.5
+5.2
+6.0
+6.2
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2011 annual mean water level ranked 34 of 54 years (-1.8 cm vs. the period average).