Historical weather data, all-time temperature records, and monthly climate averages for Fairfield, CT. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Fairfield lands right in that unpredictable stretch of early spring — historically, highs average 54° but have swung anywhere from 22° to 70° on this exact date. The good news: after 77 years of data, snow on April 5th is essentially off the table, and there's only a 31% chance you'll need an umbrella.
Fairfield's weather has real range — from a scorching 103° in July 1957 to a brutal -7° in January 1984, a 110-degree spread between its all-time extremes. Single-day rainfall can get serious too, as a June 1972 storm proved by dumping 6.18 inches, and a February 2013 blizzard still holds the single-day snow record at 18.5 inches.
Summer is the sweet spot, with highs peaking around 83–84° in mid-July before easing into a pleasant fall. January and February are the coldest stretch, with average highs barely cracking the upper 30s. Rain is fairly consistent year-round, but late summer — especially early August — tends to be the wettest window, averaging over an inch of precipitation in a single week.