Historical weather data, all-time temperature records, and monthly climate averages for Greenville, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Greenville runs cool, with an average high of just 57° and a low of 35° across 132 years of records. The date has seen a 58-degree swing in extremes — from a balmy 78° in 1921 down to a bitter 20° in 1944. There's a 40% chance of rain today, though snow is unlikely at just 3%.
Greenville's weather has real teeth on both ends — the thermometer has hit 105° in the summer of 1934 and plunged to -33° in January 1994, a range of 138 degrees. The wettest single day on record dropped 5.19 inches on August 10, 1969, and the Blizzard of '78 left 13 inches of snow in a single day on January 27th.
Summer is the sweet spot here, with average highs peaking at 84° during the week of July 9–15, while late January bottoms out at a frigid 34°. If you're trying to stay dry, avoid late June and early July — the wettest stretch of the year averages over an inch of rain per week. Spring and fall offer mild temperatures in the 49–77° range, making April through May and September through October the most comfortable windows.