Historical weather data, all-time temperature records, and monthly climate averages for Monroe, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Monroe sits right in the middle of spring's push, with an average high of 60° and low of 37° across 101 years of records. The date has seen a 59-degree swing in extremes — from a balmy 81° in 2007 down to a bitter 22° in 1992. Flip a coin on rain: there's a 50% chance of precipitation today, though snow is essentially off the table.
Monroe's weather has some serious range — from a scorching 104° on July 3, 2002 to a brutal -25° on January 28, 1963, a spread of 129 degrees. The wettest single day on record dropped 5.1 inches on July 21, 1973, while a single January storm in 2026 buried the area under 11 inches of snow.
Monroe peaks in heat during the week of July 9–15, when average highs reach 86°, and bottoms out mid-January with highs struggling to 35°. If you're planning around rain, mid-May is the wettest stretch of the year, averaging over an inch of precipitation in a single week. The shoulder months of April and October offer mild temps in the 60s if you're looking to dodge the extremes.