Historical weather data, all-time temperature records, and monthly climate averages for Zanesville, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th is a coin-flip day in Zanesville — there's a 50% chance of precipitation, and the thermometer can swing wildly. On this date, highs have ranged from a bitter 19° in 1964 all the way to a shirt-sleeve 83° in 1986. And yes, April 4th holds Zanesville's all-time single-day snowfall record: a stunning 16 inches fell in 1987.
Zanesville earns its stripes as a true four-season city, with a 128-degree spread between its all-time records. Summer can be brutal — temperatures hit 103° on July 16, 1988 — while winters have bottomed out at -25° in January 1994. A single September day in 2004 dropped 4.46 inches of rain, a reminder that the area doesn't shy away from extremes.
Zanesville runs warm from late June through August, peaking the week of July 16–22 with average highs of 85°. Winters are cold and gray, with January and February highs hovering in the upper 30s to low 40s. If you're watching the rain, late June into early July is the wettest stretch of the year, averaging over an inch of precipitation per week.