Historical weather data, all-time temperature records, and monthly climate averages for Mason, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Mason sits right in the heart of spring's mood swings — historically, highs have ranged from a pleasant 82° (2010) all the way down to a frigid 24° low back in 2004. On average, expect a mild 61° high and 37° low, with nearly a coin-flip's chance of rain at 43%. Snow? Not a concern today.
Mason's weather has real range — from a brutal -20° in February 2015 to a scorching 105° in July 2012, this southwestern Ohio city doesn't do anything halfway. The wettest single day on record dumped nearly 4 inches of rain on July 17, 2001, a reminder that summer storms here mean business.
Mason's sweet spot for warm weather runs mid-July through mid-August, when average highs peak around 87°. If you're avoiding the cold, steer clear of mid-January, when highs average just 37°. Rain is spread fairly evenly through the warmer months, with mid-June being the wettest stretch of the year.