Historical weather data, all-time temperature records, and monthly climate averages for Wethersfield, CT. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Wethersfield sits right on the edge of spring, with 104 years of data pointing to an average high of 54° and a low of 35°. The date has seen wild swings though — a shirt-sleeve 82° back in 1921 and a bitter 20° in 1982. There's roughly a 1-in-3 chance of rain today, but snow is nearly off the table at just 2%.
Wethersfield's weather has real teeth at both ends of the thermometer — a sweltering 103° in July 2011 and a brutal -24° in February 1943, a spread of 127 degrees. The wettest single day on record dumped 6.1 inches in September 1938, likely from the Great New England Hurricane, and a single December storm in 1945 buried the area under 17.7 inches of snow.
Wethersfield follows a classic New England pattern: summers peak in the week of July 16–22 with average highs of 85°, while January and February bottom out near freezing with highs in the mid-to-upper 30s. If you're trying to avoid rain, skip early April — it's statistically the wettest week of the year, averaging over an inch of precipitation. The shoulder months of May and September offer the best balance of warmth and dryness.