September 2023 Climate Summary

Overview and Graphics

September 2023 Climate Review:

After a very active July and August, the weather during September calmed down considerably. In fact, there were only 15 warnings issued the entire month, including 12 Severe Thunderstorm Warnings and 3 Flash Flood Warnings. The month started off cooler than normal on the 1st, but quickly warmed to above normal as temperatures reached the 90-degree mark ahead of an approaching cold front. That front brought some shower and thunderstorm activity to the region on the 5th and 6th. In the wake of the front, a prolonged period of below normal temperatures persisted through the middle of the month as an upper-level trough prevailed over the eastern U.S. Spotty light precipitation was observed with a couple of frontal passages on the 12th and 17th-18th. Temperatures eventually returned to the warmer side of normal during the latter third of the month, with many locations some 10 to 15 degrees above normal by the last 5 days of September. September 27th-28th brought the bulk of severe weather for the month, with scattered reports of large hail and a few wind damage reports. In the end, the month finished about 1 to 2 degrees above normal, while precipitation was 1 to 3 inches below normal. The main exception was the southern Pennyrile region of western Kentucky, where as much as 2 to 5 inches fell the night of the 27th into the morning of the 28th.

The graphic below is an interpolated monthly rainfall map using actual observations. Please note that there are likely discrepancies in between observations, since the values are estimated based on nearest reports.

Map of monthly precipitation totals

September 2023 Review: Precipitation and Temperature Maps (Click on image to enlarge)

Climate Maps are from the Northeast Regional Climate Center

Monthly Summary Monthly climate statistics for Paducah, Evansville, and Cape Girardeau

Monthly climate statistics for Poplar Bluff and Carbondale

Monthly Climate Report: Paducah | Evansville | Cape Girardeau | Poplar Bluff | Carbondale

Records Listing of records for PAH, EVV, CGI, POF, MDH.

Record Event Reports: Paducah | Evansville | Cape Girardeau | Poplar Bluff | Carbondale