Historical weather data, all-time temperature records, and monthly climate averages for Somersworth, NH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Somersworth sits in that unpredictable shoulder season — expect a high around 50° and a low near 29°, but 129 years of data show the range is wild: 72° in 1974, and a brutal 9° back in 1954. There's a 39% chance of precipitation today, with a small but real 7% chance it comes down as snow.
Somersworth has seen genuine extremes over its 131-year record — from a scorching 103° on July 3, 1911, to a bone-chilling -35° on January 31, 1935, a swing of 138 degrees. A single day in July 2004 dropped 7.7 inches of rain, and a March 1937 storm buried the area under 18 inches of snow.
Summer is the sweet spot here, with highs peaking around 83° in mid-July before easing into a pleasant fall. Winters are cold and grey — January and February highs hover in the mid-30s, so pack accordingly. If you're trying to dodge rain, skip late November through early December, when weekly precipitation averages top an inch.