Historical weather data, all-time temperature records, and monthly climate averages for Gahanna, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Gahanna runs the full gamut — temperatures on this date have swung from a bitter 18° in 1995 to a t-shirt-worthy 82° in 1988. Expect something in between: a typical high of 57° and a low of 37°, with nearly a coin-flip chance of rain and a lingering 8% shot at snow.
Gahanna knows extremes. The thermometer has hit 104° in the dead of summer (July 1954) and cratered to -22° in January 1994 — a jaw-dropping 126-degree spread. A single July day in 1992 dumped over 5 inches of rain, and a March 2008 snowstorm buried the area under 15.5 inches.
Peak warmth arrives mid-July, when highs average 86°, while mid-January is the year's cold floor at a frigid 35°. Rain is most likely in early-to-mid June, averaging over an inch in a single week. If you're planning a visit, May through September offers the most comfortable stretch, with highs climbing from 73° to 85° and back down.