Hurricanes and Tornadoes That Hit Sherman, CT

The nearest NOAA station with 1991–2020 climate normals is Carmel 4N, NY, 11 miles southwest of Sherman at 680 feet. July is the warmest, with an average high of 78°F and low of 61°F; January is the coolest, at 33°F and 16°F. December is the wettest at 5.0 inches of precipitation on average and February the driest at 3.0 inches; the year adds up to 50.5 inches over 87 days with at least a tenth of an inch. June to November, the hurricane season months, bring 53% of the year's precipitation (26.7 of 50.5 inches); the other six months are drier. September has brought the most of the 39 tropical systems that passed within 75 miles (17); a normal September there has highs of 70°F and 4.9 inches of precipitation. Highs reach 90°F on about 2 days a year. Lows fall below freezing on about 137 nights a year. That 50.5 inches is more than at 16 of the 27 Connecticut stations used on this site (59%). New Milford, 4 miles east, has its own station (Danbury, CT): 53.0 inches a year, 2.5 more than here, and a July average high of 85°F against 78°F.

Since 1996, the National Weather Service has logged 203 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Sherman: 165 thunderstorm wind reports, 23 flash floods and 15 floods. They killed 2 people and injured 2, and the NWS estimated $1.2 million in property and crop damage. The strongest thunderstorm gust on record here was 100 mph, on May 27, 2014. September has had the most flash floods, 11 of 23. Of the 186 Connecticut cities on this site with a flash flood on record, 78 have had fewer than Sherman.

Flood insurance policyholders in Sherman's ZIP code 06784 have filed 11 claims with the National Flood Insurance Program since 1979, and were paid $53,000 for buildings and contents, in the dollars of each year. 55% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 128 Connecticut cities on this site with 10 or more claims, 2 have fewer than Sherman.