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Nantucket water levels in 2025
Annual rank3 / 60
vs. average13.4 cm
Highest monthly peak1.07 mAugust 2025
Monthly mean vs. previous year
| Month | 2025 (cm) | 2024 (cm) | Diff | Peak (m) |
|---|---|---|---|---|
| Jan | 11.9 | 23.5 | -11.6 | 1.03 |
| Feb | 7.9 | 24.6 | -16.7 | 0.96 |
| Mar | 11.0 | 19.0 | -8.0 | 0.93 |
| Apr | 10.0 | 23.0 | -13.0 | 0.93 |
| May | 16.4 | 22.1 | -5.7 | 0.99 |
| Jun | 16.3 | 17.5 | -1.2 | 0.96 |
| Jul | 18.0 | 16.4 | 1.6 | 0.95 |
| Aug | 20.6 | 18.8 | 1.8 | 1.07 |
| Sep | 21.7 | 26.1 | -4.4 | 0.90 |
| Oct | 28.1 | 21.7 | 6.4 | 1.02 |
| Nov | 13.7 | 24.1 | -10.4 | 1.00 |
| Dec | 13.3 | 9.0 | 4.3 | 0.95 |
Nearby years (cm vs. average)
+11.0
+12.5
+11.1
+18.2
+18.1
+13.4
Monthly means are relative to the station's mean sea level (MSL) datum.
About this page
The 2025 annual mean water level ranked 3 of 60 years (13.4 cm vs. the period average).