Spring Precipitation Averages for Every State

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

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

State-wide averages of monthly precipitation in spring range from a high of 5.94 inches (151 millimetres) in Hawaii to a low of 0.77 inches (20 millimetres) in Arizona. For the entire United States, excluding Hawaii and Alaska, the average amount of moisture falling as rain and snow is 2.68 inches (68 millimetres).

The precipitation totals are averages for the months of March, April and May. 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.

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

Average monthly precipitation for each state in spring.

State	Inches	Milli­metres	Rank
Alabama	5.37	136	3
Alaska	1.15	29	47
Arizona	0.77	20	50
Arkansas	4.99	127	6
California	1.93	49	40
Colorado	1.56	40	42
Connecticut	4.35	110	8
Delaware	4.01	102	16
Florida	3.63	92	24
Georgia	4.16	106	10
Hawaii	5.94	151	1
Idaho	1.75	44	41
Illinois	3.79	96	22
Indiana	3.94	100	17
Iowa	3.25	83	30
Kansas	3.00	76	31
Kentucky	4.61	117	7
Louisiana	5.22	133	4
Maine	3.49	89	27
Maryland	3.93	100	18
Massachusetts	4.06	103	14
Michigan	2.62	67	34
Minnesota	2.19	56	38
Mississippi	5.77	147	2
Missouri	4.12	105	13

State	Inches	Milli­metres	Rank
Montana	1.51	38	43
Nebraska	2.60	66	35
Nevada	0.96	24	48
New Hampshire	3.54	90	25
New Jersey	4.13	105	12
New Mexico	0.82	21	49
New York	3.41	87	28
North Carolina	4.14	105	11
North Dakota	1.50	38	44
Ohio	3.53	90	26
Oklahoma	3.84	98	20
Oregon	2.33	59	37
Pennsylvania	3.67	93	23
Rhode Island	4.23	107	9
South Carolina	3.83	97	21
South Dakota	2.17	55	39
Tennessee	5.15	131	5
Texas	2.50	64	36
Utah	1.16	29	46
Vermont	3.40	86	29
Virginia	3.91	99	19
Washington	2.90	74	32
West Virginia	4.06	103	14
Wisconsin	2.73	69	33
Wyoming	1.42	36	45