We’ve entered the second half of meteorological summer, and to-date, the 90-degree days have been lacking. Passing the halfway point of meteorological summer (June 1 through August 31), late July into August is considered the “Dog Days of Summer,” and we typically have 90-degree days much more regularly. Some of the hottest temperatures ever recorded for Indianapolis have occurred during this stretch of the calendar, but we have not had an official 90° temperature in three weeks.
This summer has produced five days of 90-degree heat, the hottest of which was 93° on the 18th and 12th of June. July 2021 hasn’t produced a 90° temperature but came close on two occasions, the 5th and the 15th.
By this point, eight 90-degree days are normal. We had 90-degree 12 days by the same time last year. There have only been 11 Julys on record without a 90° temperature, most recently eight years ago in 2014.
While 90s are on hold for now, we could get there this weekend with a warming trend in the works. With added dry time and drying of the soils, we are forecasting highs near 90 this weekend and again early next week. With added humidity and a few storms around, it isn’t a slam dunk that we get there. Regardless, the heat index is set to climb again as well.
Stay tuned, the Dog Days may be taking hold.