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Hail in Knox County, Missouri
62 hail events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Hail.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
Knox County, Missouri, has 62 hail events in the NCEI record since 1950, with at least one in 33 different years.
April is the busiest month, with 13 of the recorded events. The last 20 years account for 27 events against 26 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.3% of the 20,443 hail events recorded in Missouri; its 12.3 per 100 square miles compares with 29.7 statewide.
13 of the hail reports with a recorded size were golf-ball size (1.75 inches) or larger; the largest recorded stone was 3.25 inches (tea cup size).
Compared with Missouri
| Measure | Knox County | Missouri | US |
|---|---|---|---|
| Hail events since 1950 | 62 | 20,443 | 424,356 |
| Per 100 square miles | 12.3 | 29.7 | 12.0 |
| Per 10,000 residents | 162.8 | 33.1 | 12.8 |
| Deaths recorded | 0 | 0 | 29 |
| Busiest month | April | May | May |
By year
Seasonality
0Feb
0Mar
2Apr
13May
12Jun
12Jul
5Aug
9Sep
7Oct
0Nov
1Dec
1
Magnitude distribution
NWS hail-size descriptors
- under 1 in
- pea to quarter
- 1–1.74 in
- quarter to golf ball
- 1.75–2.74 in
- golf ball to baseball
- 2.75–3.99 in
- baseball to softball
- 4 in and larger
- softball and larger
Hail size in inches as recorded by NCEI; events without a size are not binned.
Recorded events
All 62 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 13 Jun 2024 | Hail | 2.00 in | — | — | — | — | County |
| 21 May 2024 | Hail | 1.00 in | — | — | — | — | County |
| 16 Apr 2024 | Hail | 1.00 in | — | — | — | — | County |
| 4 Apr 2023 | Hail | 3.25 in | — | — | — | — | County |
| 27 Sep 2019 | Hail | 1.25 in | — | — | — | — | County |
| 27 Sep 2019 | Hail | 1.25 in | — | — | — | — | County |
| 27 May 2018 | Hail | 1.00 in | — | — | — | — | County |
| 4 Dec 2017 | Hail | 1.00 in | — | — | — | — | County |
| 27 Apr 2016 | Hail | 0.88 in | — | — | — | — | County |
| 3 Apr 2014 | Hail | 1.25 in | — | — | — | — | County |
| 17 Nov 2013 | Hail | 0.88 in | — | — | — | — | County |
| 12 Jul 2011 | Hail | 0.88 in | — | — | — | — | County |
| 12 Jul 2011 | Hail | 1.50 in | — | — | — | — | County |
| 26 Jun 2011 | Hail | 1.00 in | — | — | — | — | County |
| 9 Jun 2011 | Hail | 0.75 in | — | — | — | — | County |
| 31 May 2011 | Hail | 1.00 in | — | — | — | — | County |
| 25 May 2011 | Hail | 1.00 in | — | — | — | — | County |
| 11 May 2011 | Hail | 0.75 in | — | — | — | — | County |
| 4 Jun 2010 | Hail | 2.00 in | — | — | — | — | County |
| 1 Jun 2009 | Hail | 1.50 in | — | — | — | — | County |
| 1 Jun 2009 | Hail | 0.75 in | — | — | — | — | County |
| 28 Aug 2008 | Hail | 0.88 in | — | — | — | — | County |
| 10 Jun 2008 | Hail | 0.88 in | — | — | — | — | County |
| 30 May 2008 | Hail | 0.88 in | — | — | — | — | County |
| 8 Aug 2007 | Hail | 0.88 in | — | — | — | — | County |
| 8 Aug 2007 | Hail | 1.00 in | — | — | — | — | County |
| 3 Apr 2007 | Hail | 1.00 in | — | — | — | — | County |
| 4 Jun 2005 | Hail | 0.75 in | — | — | — | — | County |
| 17 Aug 2004 | Hail | 1.00 in | — | — | — | — | County |
| 17 Aug 2004 | Hail | 0.88 in | — | — | — | — | County |
| 17 Aug 2004 | Hail | 1.00 in | — | — | — | — | County |
| 17 Aug 2004 | Hail | 1.00 in | — | — | — | — | County |
| 30 May 2004 | Hail | 0.75 in | — | — | — | — | County |
| 9 Jul 2003 | Hail | 0.75 in | — | — | — | — | County |
| 8 May 2003 | Hail | 1.25 in | — | — | — | — | County |
| 28 Jul 2002 | Hail | 0.75 in | — | — | — | — | County |
| 24 Apr 2002 | Hail | 1.00 in | — | — | — | — | County |
| 24 Apr 2002 | Hail | 1.75 in | — | — | — | — | County |
| 20 Sep 2001 | Hail | 0.75 in | — | — | — | — | County |
| 20 Sep 2001 | Hail | 0.75 in | — | — | — | — | County |
| 22 Aug 2000 | Hail | 1.50 in | — | — | — | — | County |
| 8 May 2000 | Hail | 0.88 in | — | — | — | — | County |
| 26 Mar 2000 | Hail | 1.00 in | — | — | — | — | County |
| 26 Jul 1999 | Hail | 1.00 in | — | — | — | — | County |
| 8 Apr 1999 | Hail | 1.75 in | — | — | — | — | County |
| 8 Apr 1999 | Hail | 1.00 in | — | — | — | — | County |
| 8 Apr 1999 | Hail | 1.75 in | — | — | — | — | County |
| 12 May 1998 | Hail | 0.75 in | — | — | — | — | County |
| 21 Apr 1996 | Hail | 1.75 in | — | — | — | — | County |
| 24 May 1994 | Hail | 1.50 in | $5K | $500 | — | — | County |
| 9 Sep 1992 | Hail | 0.75 in | — | — | — | — | County |
| 24 Mar 1988 | Hail | 1.00 in | — | — | — | — | County |
| 20 Aug 1987 | Hail | 1.00 in | — | — | — | — | County |
| 22 Sep 1986 | Hail | 1.00 in | — | — | — | — | County |
| 6 May 1986 | Hail | 1.75 in | — | — | — | — | County |
| 8 Jun 1982 | Hail | 0.75 in | — | — | — | — | County |
| 20 Jun 1981 | Hail | 1.75 in | — | — | — | — | County |
| 30 Sep 1977 | Hail | 2.75 in | — | — | — | — | County |
| 27 Jun 1976 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jun 1975 | Hail | 1.75 in | — | — | — | — | County |
| 13 Apr 1974 | Hail | 1.75 in | — | — | — | — | County |
| 13 Apr 1974 | Hail | 1.75 in | — | — | — | — | County |
Questions and answers
How many hail events has Knox County had?
62 events in the NCEI Storm Events record between 1950 and 2026. Reporting of hail became far more complete after 1996, so early decades undercount.
When was the last recorded hail event in Knox County?
13 Jun 2024 (Hail, 2.00 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Knox County?
The hail of 24 May 1994, with property damage estimated by NCEI at $5K and crop damage at $500.
How does Knox County compare with Missouri for hail?
12.3 events per 100 square miles against 29.7 statewide; the county holds 62 of the state's 20,443 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Hail hub and the county page.