Hurricanes and Tornadoes That Hit Plymouth, CT

The nearest NOAA station with 1991–2020 climate normals is Burlington, CT, 11 miles northeast of Plymouth at 505 feet. July is the warmest, with an average high of 84°F and low of 62°F; January is the coolest, at 36°F and 17°F. October is the wettest at 5.7 inches of precipitation on average and February the driest at 3.4 inches; the year adds up to 53.5 inches over 85 days with at least a tenth of an inch. June to November, the hurricane season months, bring 54% of the year's precipitation (28.9 of 53.5 inches); the other six months are drier. September has brought the most of the 50 tropical systems that passed within 75 miles (22); a normal September there has highs of 75°F and 5.0 inches of precipitation. Highs reach 90°F on about 13 days a year, almost all from June to August. Lows fall below freezing on about 142 nights a year. Snowfall averages 38.6 inches a year, most of it in February. That 53.5 inches is more than at 24 of the 27 Connecticut stations used on this site (89%). Oakville, 5 miles south, has its own station (Meriden Markham Municipal Airport, CT): 45.0 inches a year, 8.5 less than here, and the same July average high, 84°F.

Since 1996, the National Weather Service has logged 233 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Plymouth: 185 thunderstorm wind reports, 27 flash floods, 11 floods, 9 lightning strikes and 1 heavy rain event. They killed 1 person and injured 2, and the NWS estimated $9.7 million in property and crop damage. The strongest thunderstorm gust on record here was 92 mph, on July 15, 1997. September has had the most flash floods, 10 of 27. Of the 186 Connecticut cities on this site with a flash flood on record, 92 have had fewer than Plymouth.