Historical weather data, all-time temperature records, and monthly climate averages for Darien, CT. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Darien sits right in the heart of spring's unpredictability — temperatures have swung from a bitter 21° in 1962 to a shirt-sleeve 73° in 2010 on this exact date. Expect something in between, with an average high of 56° and low of 36°. There's also a coin-flip chance of rain, so keep an umbrella handy.
Darien has seen genuine extremes over its 67 years of records — from a scorching 104° on August 9, 2001 to a brutal -18° on January 22, 1961, a swing of 122 degrees. A single day in June 1972 dropped over 6 inches of rain, and a February 2003 storm buried the town under 18 inches of snow.
Summer is the sweet spot here, with highs averaging 85-86° in mid-July before tapering off through fall. If you're cold-averse, avoid early January, when highs barely crack 37°. Late May through early June is the wettest stretch of the year, averaging over an inch of rain per week.