September 2018 will the 7th wettest September in Clinton weather records to 1878.
Clinton weather observer Jim Blaess reports 7.94 inches of rain in the month. That compares to the average of 2.95 inches.
September 1927 is the wettest September with 11.95 inches.
Other Septembers on the list include 1970 with 10.52 inches; 1961 with 11.70 inches of rain; 1941 with 9.51 inches of rain’ 9.09 inches of rain in 1926 and 10.18 inches in 1921.
In the first 9 months of the year, Blaess says there’s been 35.78 inches of precipitation which is about 8 inches above the normal of 27.8 inches.
Blaess added that the total through September is more than the normal for the entire year which is 34.25 inches.
For August and September combined, Blaess says the precipitation total is 15.34 inches.
Temperatures in the month were above normal. Blaess says the overall temperature was 66.7 and that compares to the historical average of 65.1.
The highest reading was 89 on the 20th and the lowest was 39 on the 29th.
Blaess says in October there is an average 2.44 inches of precipitation which includes one-tenth of an inch of snow.
The Official Weather Observer says the average high on the first of October is 70 and the average low is 47 and those drop to averages of 57 and 38 by October 31st.