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Hampton Roads (Sewells Point) water levels in 1999
Annual rank26 / 98
vs. average11.8 cm
Highest monthly peak1.41 mSeptember 1999
Monthly mean vs. previous year
| Month | 1999 (cm) | 1998 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -8.7 | 10.8 | -19.5 | 0.79 |
| Feb | 9.7 | 33.8 | -24.1 | 0.78 |
| Mar | -1.1 | 5.6 | -6.7 | 0.97 |
| Apr | 6.6 | 12.9 | -6.3 | 0.72 |
| May | 13.4 | 19.9 | -6.5 | 1.10 |
| Jun | 6.0 | 10.0 | -4.0 | 0.82 |
| Jul | 3.7 | 8.4 | -4.7 | 0.86 |
| Aug | 13.7 | 16.4 | -2.7 | 1.29 |
| Sep | 21.7 | 12.9 | 8.8 | 1.41 |
| Oct | 8.2 | 7.5 | 0.7 | 0.75 |
| Nov | -1.3 | 0.1 | -1.4 | 0.66 |
| Dec | -4.6 | -0.3 | -4.3 | 0.72 |
Nearby years (cm vs. average)
+1.3
+4.8
+12.7
+12.3
+17.7
+11.8
+8.2
+7.7
+5.1
+12.3
+12.3
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 1999 annual mean water level ranked 26 of 98 years (11.8 cm vs. the period average).