Missouri hail risk

115 counties scored 2 rated Very High

St. Louis County has the highest hail risk in Missouri, scoring 99.7 out of 100 — rated "Very High" by FEMA's National Risk Index. NOAA has recorded 3,944 hail events across Missouri over the past decade.

#	County	NRI score	Rating	NOAA events 2016–2026
1	St. Louis County	99.7	Very High	163
2	Jackson County	99.4	Very High	130
3	St. Charles County	97.6	Relatively High	70
4	Clay County	97.4	Relatively High	100
5	Jefferson County	93.9	Relatively Moderate	70
6	Greene County	93.2	Relatively Moderate	147
7	Cass County	92.9	Relatively Moderate	64
8	Jasper County	90.7	Relatively Moderate	85
9	Buchanan County	90.2	Relatively Moderate	21
10	Platte County	90	Relatively Moderate	85
11	Franklin County	88.7	Relatively Moderate	47
12	St. Louis	87.1	Relatively Moderate	25
13	Newton County	82.5	Relatively Moderate	88
14	Clinton County	81.2	Relatively Moderate	28
15	St. Francois County	78.4	Relatively Moderate	28
16	Camden County	77.6	Relatively Moderate	72
17	Lincoln County	77.6	Relatively Moderate	15
18	Warren County	73.6	Relatively Moderate	19
19	Cape Girardeau County	73.3	Relatively Moderate	23
20	Nodaway County	72.9	Relatively Low	40
21	Boone County	71.7	Relatively Low	17
22	Callaway County	71.5	Relatively Low	20
23	Pettis County	70.4	Relatively Low	30
24	Henry County	69.5	Relatively Low	47
25	Polk County	68.3	Relatively Low	61
26	Johnson County	67.4	Relatively Low	59
27	Taney County	67.3	Relatively Low	89
28	Marion County	67.1	Relatively Low	18
29	Christian County	66.3	Relatively Low	96
30	Audrain County	66.2	Relatively Low	19
31	Lafayette County	65.8	Relatively Low	33
32	Bates County	65.2	Relatively Low	35
33	Barry County	64.9	Relatively Low	96
34	Scotland County	64	Relatively Low	33
35	Ray County	63.6	Relatively Low	16
36	Lawrence County	63.1	Relatively Low	40
37	Gentry County	62.6	Relatively Low	14
38	Stone County	62.6	Relatively Low	68
39	Montgomery County	62.2	Relatively Low	15
40	Vernon County	61.6	Relatively Low	54
41	Macon County	61.4	Relatively Low	22
42	Pike County	61.4	Relatively Low	8
43	Atchison County	60.3	Relatively Low	25
44	Lewis County	59.1	Relatively Low	32
45	Adair County	58.8	Relatively Low	10
46	Daviess County	58.3	Relatively Low	22
47	Scott County	56.3	Relatively Low	14
48	Benton County	56.1	Relatively Low	39
49	Harrison County	55.9	Relatively Low	31
50	Clark County	54	Relatively Low	35
51	Morgan County	53	Relatively Low	27
52	Ste. Genevieve County	52.8	Relatively Low	16
53	Andrew County	52.6	Relatively Low	10
54	Barton County	52.6	Relatively Low	35
55	Washington County	52.4	Relatively Low	22
56	Laclede County	51.7	Relatively Low	43
57	Chariton County	51	Relatively Low	9
58	Crawford County	51	Relatively Low	33
59	Linn County	49.9	Relatively Low	11
60	DeKalb County	49.5	Relatively Low	15
61	Holt County	49	Relatively Low	21
62	Cole County	48.3	Relatively Low	15
63	Cedar County	47.8	Relatively Low	21
64	Grundy County	47.7	Relatively Low	29
65	Webster County	47.2	Relatively Low	61
66	Dade County	46.2	Relatively Low	26
67	Perry County	45.9	Relatively Low	15
68	Caldwell County	44.2	Relatively Low	10
69	St. Clair County	43.6	Relatively Low	33
70	Saline County	43.4	Relatively Low	15
71	Gasconade County	43.3	Relatively Low	12
72	Dallas County	43.1	Relatively Low	15
73	Hickory County	43.1	Relatively Low	32
74	Miller County	43.1	Relatively Low	17
75	Sullivan County	42.6	Relatively Low	14
76	Mercer County	42.5	Relatively Low	13
77	Knox County	41.7	Relatively Low	9
78	Livingston County	41.3	Relatively Low	13
79	Putnam County	40	Relatively Low	15
80	Pulaski County	39.9	Relatively Low	45
81	Stoddard County	38.9	Relatively Low	17
82	Randolph County	38.7	Relatively Low	19
83	Ralls County	37.6	Relatively Low	11
84	Monroe County	36.8	Relatively Low	12
85	McDonald County	36.5	Relatively Low	60
86	Shelby County	36.2	Relatively Low	12
87	Osage County	36	Relatively Low	9
88	Wright County	35.2	Relatively Low	46
89	Phelps County	34.4	Relatively Low	56
90	Carroll County	33.4	Very Low	4
91	Butler County	33	Very Low	25
92	Texas County	32.3	Very Low	50
93	Howell County	31.8	Very Low	77
94	Madison County	29.8	Very Low	5
95	Iron County	28.8	Very Low	18
96	Schuyler County	28.5	Very Low	7
97	Mississippi County	28.4	Very Low	9
98	New Madrid County	25.1	Very Low	11
99	Wayne County	24.4	Very Low	29
100	Moniteau County	23.4	Very Low	9
101	Worth County	22.6	Very Low	5
102	Bollinger County	22.3	Very Low	18
103	Douglas County	18	Very Low	91
104	Reynolds County	15.1	Very Low	16
105	Howard County	14.3	Very Low	7
106	Dent County	14.1	Very Low	45
107	Dunklin County	13.7	Very Low	38
108	Maries County	12.9	Very Low	11
109	Ripley County	12.9	Very Low	23
110	Cooper County	12.8	Very Low	7
111	Oregon County	12.6	Very Low	22
112	Ozark County	10.8	Very Low	31
113	Carter County	9.9	Very Low	35
114	Pemiscot County	9.9	Very Low	13
115	Shannon County	9.4	Very Low	37

Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.

Hail risk nationally:

Top 50 US counties

Other hazard risks in Missouri:

Wildfire Inland Flooding Coastal Flooding Earthquake Heat Wave Tornado Hurricane Strong Wind Winter Weather Ice Storm Cold Wave Lightning Drought Landslide Avalanche Tsunami Volcanic Activity

Frequently asked questions

What is the highest hail risk county in Missouri?

St. Louis County, MO has the highest hail risk in Missouri, with a FEMA National Risk Index score of 99.7 out of 100 (rated "Very High").

How many counties in Missouri are rated Very High for hail risk?

2 of 115 scored Missouri counties are rated "Very High" for hail risk by FEMA's National Risk Index.

What causes hail risk in Missouri?

Hail risk reflects expected annual losses from damaging hailstones to structures, vehicles, and crops. High scores cluster in the central plains and Front Range — a corridor sometimes called "Hail Alley" — where large-diameter hail is most frequent. Hail causes over $10 billion in US property damage in active years, much of it to roofs, vehicles, and crops.