Historical weather data, all-time temperature records, and monthly climate averages for Tiffin, OH. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Tiffin sits in that classic transition zone — historically averaging a high of 55° and a low of 34°, it's mild but still flirts with frost. The date has swung wildly over 117 years of records, from a balmy 80° in 1921 all the way down to 20° in 1982. There's a 37% chance of rain today, but snow is nearly off the table at just 1%.
Tiffin's weather history is not for the faint of heart — the town has baked at 110° in July 1934 and shivered at -20° in January 1994, a 130-degree spread between its extremes. A single day in July 1969 dropped nearly 8 inches of rain, and a March storm in 1917 buried the area under 13 inches of snow.
Summer is Tiffin's headliner, with mid-July highs averaging 86° and the year's wettest stretch landing right at the end of June. Winter bottoms out in mid-January with average highs of just 33°, so pack accordingly. Spring and fall offer comfortable shoulder-season temperatures in the 50s–60s, though rain remains a constant companion through most of the year.