Fall Precipitation Averages for Every State

The map here shows how the amount of rain and snowfall per month in fall compares across the American states. Below the map are the data it's based on.

Plus there's a ranking of states in autumn from wettest to driest.

State-wide averages of monthly precipitation in fall range from a high of 5.23 inches (133 millimetres) in Hawaii to a low of 0.76 inches (19 millimetres) in Nevada. For the entire United States, excluding Hawaii and Alaska, the average amount of moisture falling as rain and snow is 2.42 inches (61 millimetres).

The precipitation totals are averages for the months of September, October and November. These are based on data collected by weather stations throughout each state during the years 1971 to 2000 and made available by the NOAA National Climatic Data Center of the United States.

Map of USA state average precipitation in fall

How much precipitation each state in the US gets on average in a month during fall is listed below in inches and millimeters. The states are also ranked from the wettest state in fall at number 1, to the driest state at number 50.

Average monthly precipitation for each state in fall.
State Inches Milli­metres Rank
Alabama 4.071038
Alaska 2.496335
Arizona 1.162946
Arkansas 4.331104
California 1.473741
Colorado 1.183045
Connecticut 4.351103
Delaware 3.629219
Florida 4.241085
Georgia 3.478824
Hawaii 5.231331
Idaho 1.483840
Illinois 3.158029
Indiana 3.258328
Iowa 2.686834
Kansas 2.195638
Kentucky 3.559023
Louisiana 4.561162
Maine 3.719416
Maryland 3.589120
Massachusetts 4.111047
Michigan 3.087830
Minnesota 2.255737
Mississippi 4.131056
Missouri 3.709417
State Inches Milli­metres Rank
Montana 1.082748
Nebraska 1.604139
Nevada 0.761950
New Hampshire 3.849812
New Jersey 3.769614
New Mexico 1.323443
New York 3.769614
North Carolina 3.9210011
North Dakota 1.293344
Ohio 2.957531
Oklahoma 3.328426
Oregon 2.295836
Pennsylvania 3.589120
Rhode Island 4.041039
South Carolina 3.709417
South Dakota 1.363542
Tennessee 3.9810110
Texas 2.716933
Utah 1.122847
Vermont 3.779613
Virginia 3.589120
Washington 3.468825
West Virginia 3.318427
Wisconsin 2.847232
Wyoming 0.972549
State Precipitation
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