Hurricanes and Tornadoes That Hit Water Mill, NY

The nearest NOAA station with 1991–2020 climate normals is Bridgehampton, NY, 3 miles northeast of Water Mill at 42 feet. July is the warmest, with an average high of 81°F and low of 64°F; January is the coolest, at 39°F and 23°F. December is the wettest at 5.0 inches of precipitation on average and July the driest at 3.2 inches; the year adds up to 49.8 inches over 78 days with at least a tenth of an inch. June to November, the hurricane season months, bring 49% of the year's precipitation (24.3 of 49.8 inches); the other six months are wetter. September has brought the most of the 65 tropical systems that passed within 75 miles (26); a normal September there has highs of 73°F and 4.8 inches of precipitation. Highs reach 90°F on about 5 days a year, almost all from July to August. Lows fall below freezing on about 106 nights a year. Snowfall averages 26.8 inches a year, most of it in February. That 49.8 inches is more than at 121 of the 137 New York stations used on this site (88%). Hampton Bays, 10 miles west, has its own station (Westhamptn Gabreski Airport, NY): 43.6 inches a year, 6.2 less than here, and the same July average high, 81°F.

Water temperature at the NOAA tide station Montauk, NY, 22 miles northeast, averaged 72°F in August and 39°F in February over 2021–2025. No month averaged 80°F. Sea level at the Montauk tide gauge, 22 miles from Water Mill, has risen 1.42 ± 0.05 inches per decade from 1947 to 2025, NOAA's linear trend; at that pace it is 14.2 inches in a hundred years. That is faster than at 85 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 47 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Water Mill: 28 thunderstorm wind reports, 14 flash floods, 4 lightning strikes and 1 flood. They killed 0 people and injured 4, and the NWS estimated $914,000 in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on March 11, 2000. August has had the most flash floods, 6 of 14. Of the 798 New York cities on this site with a flash flood on record, 212 have had fewer than Water Mill.

Flood insurance policyholders in Water Mill's ZIP code 11976 have filed 134 claims with the National Flood Insurance Program since 1982, and were paid $4.1 million for buildings and contents, in the dollars of each year. The most came from Hurricane Sandy in 2012: 58 claims (43% of all) and $3.6 million, then March 2010 Nor'easter in 2010 with 13 and December Storm - Nor'easter in 1992 with 10. 76% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 549 New York cities on this site with 10 or more claims, 407 have fewer than Water Mill.