Hurricanes and Tornadoes That Hit Exeter, NH

The nearest NOAA station with 1991–2020 climate normals is Epping, NH, 7 miles northwest of Exeter at 160 feet. July is the warmest, with an average high of 82°F and low of 59°F; January is the coolest, at 33°F and 14°F. October is the wettest at 4.7 inches of precipitation on average and January the driest at 3.2 inches; the year adds up to 46.4 inches over 84 days with at least a tenth of an inch. June to November, the hurricane season months, bring 50% of the year's precipitation (23.4 of 46.4 inches). September has brought the most of the 41 tropical systems that passed within 75 miles (16); a normal September there has highs of 73°F and 4.0 inches of precipitation. Highs reach 90°F on about 11 days a year, almost all from June to August. Lows fall below freezing on about 154 nights a year. Snowfall averages 56.6 inches a year, most of it in January. That 46.4 inches is more than at 23 of the 39 New Hampshire stations used on this site (59%). Newfields, 5 miles north, has its own station (Durham 2 SSW, NH): 47.2 inches a year, 0.8 more than here, and a July average high of 81°F against 82°F.

Water temperature at the NOAA tide station Seavey Island, ME, 14 miles northeast, averaged 64°F in August and 37°F in February over 2021–2025. No month averaged 80°F. Sea level at the Seavey Island tide gauge, 14 miles from Exeter, has risen 0.87 ± 0.04 inches per decade from 1926 to 2025, NOAA's linear trend; at that pace it is 8.7 inches in a hundred years. That is faster than at 48 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 128 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Exeter: 114 thunderstorm wind reports, 9 floods, 3 lightning strikes and 2 flash floods. They killed 0 people and injured 10, and the NWS estimated $1.6 million in property and crop damage. The strongest thunderstorm gust on record here was 70 mph, on July 12, 2010.

Flood insurance policyholders in Exeter's ZIP code 03833 have filed 102 claims with the National Flood Insurance Program since 1981, and were paid $1.3 million for buildings and contents, in the dollars of each year. The most came from Flooding in 1996: 34 claims (33% of all) and $254,000, then March 2010 Nor'easter in 2010 with 11. The year with the most claims was 2006, with 32. 44% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 60 New Hampshire cities on this site with 10 or more claims, 53 have fewer than Exeter.