Historical weather data, all-time temperature records, and monthly climate averages for Griffith, IN. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Griffith lands right in that unpredictable stretch of early spring, with average highs of 55° and lows that still dip to 34°. The date has seen a 62-degree swing in recorded history — from a frigid 18° in 1982 to a shirt-sleeve 80° in 2012. There's a 43% chance of rain today, though snow is nearly off the table at just 1%.
Griffith's weather has real teeth at both ends of the thermometer — the town has baked at 103° in August 1988 and shivered at -27° in January 1985, a jaw-dropping 130-degree range. A single July day in 1996 dumped 6.55 inches of rain, and a February 2011 snowstorm buried the area under 19 inches in one shot.
Summer is the clear sweet spot, with highs hitting 84° in mid-July and the wettest conditions arriving alongside the heat. Winters are legitimately cold — January and February average highs sit at just 30° and 35°, so plan accordingly. Spring and fall offer a wide transition window, with April jumping 13 degrees warmer than March and October still a comfortable 64°.