Although September 2011 ended up wetter and colder than normal, it definitely didn't start out that way! High temperatures on the first three days of the month hovered near 100 degrees, culminating in a record high of 102 at Louisville on the 3rd (just two degrees shy of the all-time record for the month). A cold front came through on the 4th and ushered in a much colder air mass. So much colder, in fact, that record cold highs in the 60s were set just a few days after flirting with the century mark! Remnants from Tropical Storm Lee stalled over the region during this time as well, which contributed to the cloudy, cool, and wet conditions. After dipping briefly into Severe Drought status in the Lake Cumberland region, Lee's rainfall from the 4th to the 8th thoroughly soaked the ground with 2 to 4 inches of rain falling right on the most hard-hit counties.
It was not an especially stormy month. By far the stormiest day of the month was the 4th when that strong cold front came through and brought thunderstorms with gusty winds, hail, and heavy rain to southern Indiana and the Blue Grass.
Toward the end of the month an upper level low parked itself over the Midwest and sent several waves of showers through the region. On the night of the 26th-27th a band of heavy rain set up from Hartford to Madison, with four inches of rain falling over a few hours' time. The west side of Louisville experienced significant flash flooding and some water rescues were necessary.
|Location||Average Temperature||Departure from Normal||Precipitation||Departure from Normal|
Record high of 102 at Louisville on the 3rd
Record rainfall of 1.31" at Lexington on the 5th
Record cold high of 68 on the 5th
Record cold highs on the 6th: 66 at Louisville, 61 at Lexington, 60 at Bowling Green, 65 at Frankfort
Record cold highs on the 7th: 65 at Louisville, 61 at Lexington, 67 at Bowling Green, 60 at Frankfort
Record cold highs on the 8th: 63 at Louisville, 62 at Lexington, 68 at Bowling Green, 62 at Frankfort
9th wettest September on record at Louisville
7th wettest September on record at Lexington