National Weather Service United States Department of Commerce

The first week of the month was generally dry with seasonable temperatures. Though we have had roughly normal precipitation in 2021 as a whole, by August 10 we had dried out enough to introduce some areas of D0 (abnormally dry) on the U.S. Drought Monitor northeast of Louisville and in the Barren River Lake region.

From the 9th to the 19th we entered a wetter pattern and much of the month's rain fell during this time. Severe weather was sparse this month, but a few thunderstorms did manage to produce some damaging wind gusts during this period.

After another relatively dry period, the month ended on a wet note as the remnants of Hurricane Ida combined with a cold front to bring us thunderstorms on the 30th and rain on the 31st. Fortunately there was very little flooding due to dry ground and plenty of green vegetation. The most significant flooding took place on the 30th, well ahead of Ida, in Dubois, Orange, and Clark counties of southern Indiana. The gymnasium flooded at northeast Dubois Intermediate School.

  Average Temperature Departure from Normal Precipitation Departure from Normal
Bowling Green 80.0° +1.5° 5.40" +1.51"
Frankfort 77.6° +1.5° 8.92" +5.77"
Lexington 75.6° -0.1° 7.50" +3.79"
Louisville Ali 80.9° +2.0° 3.27" -0.44"
Louisville Bowman 79.3° +1.7° 3.86" +0.33"

 

Records

11th: Warm low of 81° at Louisville
13th: Warm low of 75° at Bowling Green
19th: Wettest August day on record at Frankfort, 3.97"
29th: Warm low of 72° at Frankfort
31st: Rainfall of 2.11" at Bowling Green, rainfall of 2.21" at Frankfort

Wettest August on record at Frankfort
6th wettest August on record at Lexington

Shepherdsville, KY August 13, 2021

Storms building near Shepherdsville, Kentucky, on the 13th. Tyler Voelker