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Boston water levels in 2009
Annual rank16 / 105
vs. average12.4 cm
Highest monthly peak2.39 mJanuary 2009
Monthly mean vs. previous year
| Month | 2009 (cm) | 2008 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -0.4 | -0.3 | -0.1 | 2.39 |
| Feb | 3.9 | -1.5 | 5.4 | 2.03 |
| Mar | 1.5 | 0.0 | 1.5 | 2.09 |
| Apr | 5.8 | 1.7 | 4.1 | 1.92 |
| May | 4.6 | 15.2 | -10.6 | 2.06 |
| Jun | 18.3 | 9.8 | 8.5 | 2.34 |
| Jul | 16.8 | 7.3 | 9.5 | 2.30 |
| Oct | 16.5 | 11.3 | 5.2 | 2.32 |
| Nov | 12.7 | 7.3 | 5.4 | 2.04 |
| Dec | 9.8 | -1.7 | 11.5 | 2.22 |
Nearby years (cm vs. average)
+6.4
+12.3
+10.6
+7.1
+9.1
+12.4
+19.0
+15.1
+13.3
+12.4
+12.5
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2009 annual mean water level ranked 16 of 105 years (12.4 cm vs. the period average).