Rehoboth Bay at Dewey Beach (IN MLLW)
Highest listed crest 7.34 ftFlood stage 3.3 ft34 crests since 1962
The Rehoboth Bay at Dewey Beach (IN MLLW) crested at major flood stage 4 times among the 34 crests the National Weather Service lists from 1962 to 2026. The highest, 7.34 ft on March 6, 1962, was major flooding, 4.04 feet above flood stage.
The gauge
- Highest listed crest
- 7.34 ft
- March 6, 1962
- Flood stage
- 3.3 ft
- Major flooding from 5.3 ft
- Crests at major
- 4
- 8th of 18 gauges in Delaware
- Most recent flood crest
- October 22, 2026
- 4.61 ft, moderate flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Flood stage (minor) | 3.3 | 0 | — |
| Moderate flood stage | 4.3 | 30 | Oct 22, 2026 |
| Major flood stage | 5.3 | 4 | Sep 26, 2026 |
Every listed crest
34 crests from 1962 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
| 1 | Mar 6, 1962 | 7.34 | +4.04 | Major |
| 2 | Oct 29, 2021 | 5.73 | +2.43 | Major |
| 3 | Oct 29, 2012 | 5.68 | +2.38 | Major |
| 4 | Sep 26, 2026 | 5.68 | +2.38 | Major |
| 5 | Aug 21, 2025 | 5.18 | +1.88 | Moderate |
| 6 | Oct 11, 2019 | 5.04 | +1.74 | Moderate |
| 7 | Sep 23, 2023 | 5.00 | +1.70 | Moderate |
| 8 | Oct 3, 2022 | 4.99 | +1.69 | Moderate |
| 9 | Oct 13, 2025 | 4.99 | +1.69 | Moderate |
| 10 | Nov 13, 2009 | 4.74 | +1.44 | Moderate |
| 11 | Dec 16, 2022 | 4.74 | +1.44 | Moderate |
| 12 | Jan 23, 2016 | 4.69 | +1.39 | Moderate |
| 13 | Oct 22, 2026 | 4.61 | +1.31 | Moderate |
| 14 | May 8, 2022 | 4.59 | +1.29 | Moderate |
| 15 | May 12, 2008 | 4.52 | +1.22 | Moderate |
| 16 | Feb 2, 2021 | 4.51 | +1.21 | Moderate |
| 17 | Dec 23, 2022 | 4.49 | +1.19 | Moderate |
| 18 | Nov 18, 2019 | 4.47 | +1.17 | Moderate |
| 19 | Sep 23, 2024 | 4.45 | +1.15 | Moderate |
| 20 | Jan 10, 2024 | 4.44 | +1.14 | Moderate |
| 21 | Oct 30, 2025 | 4.42 | +1.12 | Moderate |
| 22 | Oct 30, 2020 | 4.41 | +1.11 | Moderate |
| 23 | Oct 3, 2015 | 4.38 | +1.08 | Moderate |
| 24 | Oct 1, 2025 | 4.38 | +1.08 | Moderate |
| 25 | Sep 9, 2018 | 4.37 | +1.07 | Moderate |
| 26 | Oct 15, 2023 | 4.37 | +1.07 | Moderate |
| 27 | Apr 12, 2024 | 4.36 | +1.06 | Moderate |
| 28 | Dec 18, 2023 | 4.35 | +1.05 | Moderate |
| 29 | Feb 7, 2020 | 4.34 | +1.04 | Moderate |
| 30 | May 30, 2021 | 4.34 | +1.04 | Moderate |
| 31 | Oct 11, 2021 | 4.33 | +1.03 | Moderate |
| 32 | Aug 27, 2011 | 4.30 | +1.00 | Moderate |
| 33 | Apr 4, 2020 | 4.30 | +1.00 | Moderate |
| 34 | Nov 15, 2024 | 4.30 | +1.00 | Moderate |
Other gauges in Sussex County
| Delaware Bay at Lewes (IN MLLW) | 9.26 ft, Jan 23, 2016 | 8 |
| Rosedale Beach (IN MLLW) | 7.71 ft, Feb 5, 1998 | 5 |
| Indian River Inlet (IN MLLW) | 7.66 ft, Oct 29, 2012 | 12 |
| South Bethany Beach (IN MLLW) | 5.71 ft, Oct 29, 2012 | 1 |
| Little Assawoman Bay at Fenwick Island (IN MLLW) | 5.07 ft, Oct 29, 2012 | 1 |
| Bridgeville | 10.31 ft, Feb 26, 1979 | 0 |
Sussex County: every hazard · River floods across the country · Delaware
NOAA National Water Prediction Service, gauge DEWD1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.