Kentucky Monthly Weather Summary

For the Period: September 2018 Above Normal Temperatures and Record Breaking Precipitation: An exceptionally wet month led to the third wettest September on record for the Bluegrass State. The state averaged 8.12 inches, which was almost five above normal. While the state finished third, the Bluegrass Region and Eastern Kentucky each recorded the all-time wettest September on record with averages of 10.33 and 8.59, respectively. The intense rainfall started with the remnants of Tropical Storm Gordon working through the area between the 5th and 9th. Widespread showers and storms led to several bouts of flash flooding and rivers rising into the minor flood stages. During this time span, the state averaged a little over 2.5 inches, but much high totals were seen along the Ohio River and up into Northeastern Kentucky where many were over four inches. This was followed by yet another tropical system a week later as the Tropical Depression Florence worked through Eastern Kentucky. This time, rainfall was less widespread and confined mainly to Eastern the eastern half of the state. Even with the passage of two tropical systems, an active pattern remained for the second half of the month. Thunderstorms developed within an unstable atmosphere on the 21st with the passage of a cold front, producing heavy rain and signaling the start of a very active week with daily rounds of rainfall. Between the 21st and 27th, the state averaged over four inches. Already saturated grounds led to continued flooding issues, especially across the Southern Bluegrass and Northeastern Kentucky.

2017 Monthly Summary Archive


Past Years Growing Season Summary

KY Precipitation Departures

KY Temperature Departures