Lake Norman Monthly Average Rainfall These are normal averages for the general area and are not taken from our Mooresville weather station. MONTH AVE JAN 3.8 FEB 3.5 MARCH 4.5 APRIL 3.4 MAY 4.2 JUNE 4.5 JULY 3.9 AUG 3.7 SEPT 4.1 OCT 3.5 NOV 3.3 DEC 3.6 Today  |  1 Week  |  Month  |  3 Months  |  Year Lake Norman Monthly Average Rainfall
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