Historical weather data, all-time temperature records, and monthly climate averages for Fairfield, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Fairfield typically lands in that classic Ohio spring sweet spot — average highs of 63° with lows still dipping to 38° overnight. Nearly half of all April 4ths on record have brought some precipitation, so don't put the umbrella away just yet. The date's range tells the whole story: a balmy 83° back in 1986, and a brutal 22° low in 1992.
Fairfield's weather has real range — 106° in July 2012 and -23° in January 1994 means this city has seen nearly 130 degrees of temperature spread in just 40 years of records. Rain can pile up fast too: a single July day in 2023 dropped 5.26 inches, and a January 1994 snowstorm buried the area under 8 inches.
Summer is the main event here, with average highs peaking at 89° during the week of July 16-22 and staying in the mid-to-upper 80s for two full months. If you're avoiding heat, aim for spring or fall — April and October both average around 66-68°. Late April into early May is the wettest stretch of the year, averaging 1.41 inches in a single week.