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CBBT, Chesapeake Channel water levels in 2025
Annual rank5 / 8
vs. average-1.5 cm
Highest monthly peak1.45 mOctober 2025
Monthly mean vs. previous year
| Month | 2025 (cm) | 2024 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | -4.6 | 17.5 | -22.1 | 0.74 |
| Feb | 0.4 | 25.7 | -25.3 | 0.80 |
| Mar | 4.6 | 19.9 | -15.3 | 0.92 |
| Apr | 5.6 | 24.4 | -18.8 | 0.93 |
| May | 14.2 | 28.3 | -14.1 | 0.92 |
| Jun | 14.7 | 10.7 | 4.0 | 0.84 |
| Jul | 13.3 | 9.1 | 4.2 | 0.77 |
| Aug | 32.5 | 14.2 | 18.3 | 1.33 |
| Sep | 33.9 | 39.3 | -5.4 | 1.32 |
| Oct | 39.1 | 25.1 | 14.0 | 1.45 |
| Nov | 0.7 | 17.8 | -17.1 | 0.84 |
| Dec | 2.1 | 0.2 | 1.9 | 0.92 |
Nearby years (cm vs. average)
-1.2
-2.0
-3.0
+3.7
+4.8
-1.5
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2025 annual mean water level ranked 5 of 8 years (-1.5 cm vs. the period average).