# Boston king tides and high water in 2022

> In 2022, NOAA's Boston tide gauge recorded water high enough for FloodRoute's model to put at least one Boston road at risk on 38 days. The highest was 13.97 ft on Friday, December 23, 2022, 2.33 ft above the tide tables, with 90 roads at risk, including Chelsea Street, William T. Morrissey Boulevard and Marginal Street.

**Estimates, not records of actual flooding.** Each day is NOAA's verified high water at the tide gauge, run through FloodRoute's flood model on today's roads and elevations, in dry weather. Drains, levees, tide gates, rain, road changes and elevation error all mean real conditions differed. Not for property, real-estate, insurance, lending, engineering or legal decisions.

## Every day with roads at risk (38)

| Date | High water (Boston gauge, ft MLLW) | vs tide tables | Roads at risk | Severity | Deepest streets (model) |
|---|---|---|---|---|---|
| Jan 1, 2022 | 12.54 | +1.15 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 2, 2022 | 13.09 | +1.41 ft | 30 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 3, 2022 | 12.82 | +1.05 ft | 16 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 4, 2022 | 12.56 | +0.90 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 5, 2022 | 12.09 | +0.73 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 17, 2022 | 12.58 | +2.71 ft | 12 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jan 29, 2022 | 12.97 | +2.38 ft | 27 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Feb 1, 2022 | 12.03 | +0.65 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Apr 19, 2022 | 11.79 | +0.38 ft | 2 | Possible | Chelsea Street |
| Apr 20, 2022 | 11.83 | +0.46 ft | 2 | Possible | Chelsea Street |
| May 15, 2022 | 12.13 | +0.64 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 17, 2022 | 12.73 | +0.94 ft | 14 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 18, 2022 | 12.48 | +0.62 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 19, 2022 | 12.16 | +0.44 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 20, 2022 | 12.10 | +0.70 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| May 21, 2022 | 11.80 | +0.87 ft | 2 | Possible | Chelsea Street |
| Jun 13, 2022 | 12.12 | +0.36 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 15, 2022 | 12.40 | +0.42 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 16, 2022 | 12.51 | +0.50 ft | 10 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 17, 2022 | 12.15 | +0.30 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 18, 2022 | 12.33 | +0.82 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jun 19, 2022 | 11.78 | +0.76 ft | 2 | Possible | Chelsea Street |
| Jul 12, 2022 | 12.29 | +0.58 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jul 13, 2022 | 12.41 | +0.50 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jul 15, 2022 | 12.44 | +0.51 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Jul 16, 2022 | 11.88 | +0.11 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Aug 10, 2022 | 11.99 | +0.55 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Aug 11, 2022 | 12.32 | +0.67 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Aug 13, 2022 | 12.27 | +0.60 ft | 6 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Aug 14, 2022 | 12.13 | +0.62 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 8, 2022 | 12.07 | +0.99 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 9, 2022 | 11.99 | +0.73 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 11, 2022 | 12.17 | +0.91 ft | 5 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Sep 12, 2022 | 11.94 | +0.87 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 25, 2022 | 12.42 | +0.75 ft | 8 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Nov 27, 2022 | 12.63 | +1.23 ft | 12 | Likely | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 23, 2022 | 13.97 | +2.33 ft | 90 | Severe | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |
| Dec 24, 2022 | 12.02 | +0.21 ft | 4 | Possible | Chelsea Street, William T. Morrissey Boulevard, Marginal Street |

[All Boston history](https://floodroute.com/ma/boston/history.md) · [Live forecast](https://floodroute.com/ma/boston.md)

Data: [CSV](https://floodroute.com/data/history/ma/boston.csv) · [JSON](https://floodroute.com/data/history/ma/boston.json) · Open Database License (ODbL) 1.0 (https://opendatacommons.org/licenses/odbl/1-0/) · Credit: FloodRoute (floodroute.com), © OpenStreetMap contributors, NOAA CO-OPS · [All towns](https://floodroute.com/data.md)

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