States › Montana › Stillwater County › Hail
Hail in Stillwater County, Montana
185 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.
Stillwater County, Montana, has 185 hail events in the NCEI record since 1950, with at least one in 38 different years.
June is the busiest month, with 77 of the recorded events. The last 20 years account for 107 events against 67 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 2.2% of the 8,391 hail events recorded in Montana; its 10.3 per 100 square miles compares with 5.8 statewide.
46 of the hail reports with a recorded size were golf-ball size (1.75 inches) or larger; the largest recorded stone was 2.75 inches (baseball size).
Compared with Montana
| Measure | Stillwater County | Montana | US |
|---|---|---|---|
| Hail events since 1950 | 185 | 8,391 | 424,356 |
| Per 100 square miles | 10.3 | 5.8 | 12.0 |
| Per 10,000 residents | 204.6 | 76.0 | 12.8 |
| Deaths recorded | 0 | 0 | 29 |
| Busiest month | June | July | May |
By year
Seasonality
0Feb
0Mar
0Apr
0May
23Jun
77Jul
63Aug
22Sep
0Oct
0Nov
0Dec
0
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 185 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 |
|---|---|---|---|---|---|---|---|
| 7 Aug 2025 | Hail | 1.75 in | — | — | — | — | County |
| 13 Jun 2025 | Hail | 1.00 in | — | — | — | — | County |
| 13 Jun 2025 | Hail | 1.25 in | — | — | — | — | County |
| 13 Jun 2025 | Hail | 1.75 in | — | — | — | — | County |
| 13 Jun 2025 | Hail | 1.50 in | — | — | — | — | County |
| 6 Aug 2024 | Hail | 1.00 in | — | — | — | — | County |
| 6 Aug 2023 | Hail | 1.50 in | — | — | — | — | County |
| 24 Jul 2022 | Hail | 1.00 in | — | — | — | — | County |
| 15 Jul 2022 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jul 2022 | Hail | 1.00 in | — | — | — | — | County |
| 3 Jul 2022 | Hail | 1.75 in | — | — | — | — | County |
| 3 Jul 2022 | Hail | 1.75 in | — | — | — | — | County |
| 10 Jun 2021 | Hail | 0.88 in | — | — | — | — | County |
| 9 Jul 2020 | Hail | 0.88 in | — | — | — | — | County |
| 5 Jul 2020 | Hail | 0.75 in | — | — | — | — | County |
| 19 May 2020 | Hail | 0.75 in | — | — | — | — | County |
| 19 May 2020 | Hail | 1.25 in | — | — | — | — | County |
| 11 Aug 2019 | Hail | 2.00 in | — | — | — | — | County |
| 11 Aug 2019 | Hail | 1.00 in | — | — | — | — | County |
| 11 Aug 2019 | Hail | 2.75 in | — | — | — | — | County |
| 11 Aug 2019 | Hail | 2.00 in | — | — | — | — | County |
| 14 Jul 2019 | Hail | 1.25 in | — | — | — | — | County |
| 14 Jul 2019 | Hail | 1.00 in | — | — | — | — | County |
| 13 Jul 2019 | Hail | 1.00 in | — | — | — | — | County |
| 11 Jul 2019 | Hail | 1.00 in | — | — | — | — | County |
| 6 Jul 2019 | Hail | 1.00 in | — | — | — | — | County |
| 30 Jun 2019 | Hail | 1.00 in | — | — | — | — | County |
| 26 May 2019 | Hail | 1.50 in | — | — | — | — | County |
| 28 Jul 2018 | Hail | 1.00 in | — | — | — | — | County |
| 28 Jul 2018 | Hail | 1.25 in | — | — | — | — | County |
| 27 Jul 2018 | Hail | 2.00 in | — | — | — | — | County |
| 27 Jul 2018 | Hail | 1.75 in | — | — | — | — | County |
| 27 Jul 2018 | Hail | 1.50 in | — | — | — | — | County |
| 27 Jul 2018 | Hail | 1.00 in | — | — | — | — | County |
| 26 Jul 2018 | Hail | 1.75 in | — | — | — | — | County |
| 26 Jul 2018 | Hail | 1.75 in | — | — | — | — | County |
| 26 Jul 2018 | Hail | 0.88 in | — | — | — | — | County |
| 26 Jul 2018 | Hail | 1.75 in | — | — | — | — | County |
| 2 Jul 2018 | Hail | 1.00 in | — | — | — | — | County |
| 2 Jul 2018 | Hail | 1.00 in | — | — | — | — | County |
| 2 Jul 2018 | Hail | 0.88 in | — | — | — | — | County |
| 26 Jun 2018 | Hail | 0.88 in | — | — | — | — | County |
| 26 Jun 2018 | Hail | 1.00 in | — | — | — | — | County |
| 26 May 2018 | Hail | 1.00 in | — | — | — | — | County |
| 22 May 2018 | Hail | 1.00 in | — | — | — | — | County |
| 9 May 2018 | Hail | 1.00 in | — | — | — | — | County |
| 9 May 2018 | Hail | 1.00 in | — | — | — | — | County |
| 9 May 2018 | Hail | 1.25 in | — | — | — | — | County |
| 7 May 2017 | Hail | 1.00 in | — | — | — | — | County |
| 15 Jul 2016 | Hail | 0.75 in | — | — | — | — | County |
| 15 Jul 2016 | Hail | 1.00 in | — | — | — | — | County |
| 21 May 2016 | Hail | 1.00 in | — | — | — | — | County |
| 21 May 2016 | Hail | 0.75 in | — | — | — | — | County |
| 21 May 2016 | Hail | 1.00 in | — | — | — | — | County |
| 18 Jun 2015 | Hail | 1.25 in | — | — | — | — | County |
| 16 Jun 2015 | Hail | 0.88 in | — | — | — | — | County |
| 16 Jun 2015 | Hail | 1.75 in | — | — | — | — | County |
| 10 Jun 2014 | Hail | 1.00 in | — | — | — | — | County |
| 18 May 2014 | Hail | 1.00 in | — | — | — | — | County |
| 18 May 2014 | Hail | 1.75 in | — | — | — | — | County |
| 18 May 2014 | Hail | 1.00 in | — | — | — | — | County |
| 1 Aug 2013 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jun 2013 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jun 2013 | Hail | 1.00 in | — | — | — | — | County |
| 19 Jun 2013 | Hail | 1.25 in | — | — | — | — | County |
| 19 Jun 2013 | Hail | 1.75 in | — | — | — | — | County |
| 19 Jun 2013 | Hail | 1.00 in | — | — | — | — | County |
| 19 Jun 2013 | Hail | 1.00 in | — | — | — | — | County |
| 19 Jun 2013 | Hail | 1.00 in | — | — | — | — | County |
| 13 Jun 2013 | Hail | 1.25 in | — | — | — | — | County |
| 13 Jun 2013 | Hail | 1.75 in | — | — | — | — | County |
| 13 Jun 2013 | Hail | 1.75 in | — | — | — | — | County |
| 7 Jul 2011 | Hail | 1.75 in | — | — | — | — | County |
| 6 Jul 2011 | Hail | 1.75 in | — | — | — | — | County |
| 6 Jul 2011 | Hail | 1.00 in | — | — | — | — | County |
| 3 Jul 2011 | Hail | 1.00 in | — | — | — | — | County |
| 24 Jun 2011 | Hail | 1.00 in | — | — | — | — | County |
| 24 Jun 2011 | Hail | 1.00 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.25 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.50 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.00 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 2.00 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.75 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 2.75 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 2.00 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.50 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.75 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.00 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.00 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.50 in | — | — | — | — | County |
| 6 Jun 2011 | Hail | 1.00 in | — | — | — | — | County |
| 16 Jun 2010 | Hail | 1.75 in | — | — | — | — | County |
| 16 Jun 2010 | Hail | 1.75 in | — | — | — | — | County |
| 16 Jun 2010 | Hail | 1.00 in | — | — | — | — | County |
| 16 Jun 2010 | Hail | 1.50 in | — | — | — | — | County |
| 16 Jun 2010 | Hail | 1.00 in | — | — | — | — | County |
| 26 May 2010 | Hail | 0.75 in | — | — | — | — | County |
| 6 Aug 2009 | Hail | 0.75 in | — | — | — | — | County |
| 1 Jul 2008 | Hail | 1.25 in | — | — | — | — | County |
| 25 Jun 2008 | Hail | 0.75 in | — | — | — | — | County |
| 25 Jun 2008 | Hail | 1.00 in | — | — | — | — | County |
| 14 Jul 2007 | Hail | 1.75 in | — | — | — | — | County |
| 14 Jul 2007 | Hail | 0.88 in | — | — | — | — | County |
| 14 Jul 2007 | Hail | 1.75 in | — | — | — | — | County |
| 13 May 2007 | Hail | 1.75 in | — | — | — | — | County |
| 13 May 2007 | Hail | 0.88 in | — | — | — | — | County |
| 13 May 2007 | Hail | 1.75 in | — | — | — | — | County |
| 17 Aug 2006 | Hail | 0.88 in | — | — | — | — | County |
| 17 Aug 2006 | Hail | 1.00 in | — | — | — | — | County |
| 17 Aug 2006 | Hail | 0.88 in | — | — | — | — | County |
| 17 Aug 2006 | Hail | 1.00 in | — | — | — | — | County |
| 3 Jul 2006 | Hail | 0.75 in | — | — | — | — | County |
| 17 Aug 2005 | Hail | 0.75 in | — | — | — | — | County |
| 11 Aug 2005 | Hail | 0.75 in | — | — | — | — | County |
| 11 Aug 2005 | Hail | 0.88 in | — | — | — | — | County |
| 11 Aug 2005 | Hail | 1.25 in | — | — | — | — | County |
| 11 Aug 2005 | Hail | 1.75 in | — | — | — | — | County |
| 27 Jun 2005 | Hail | 1.25 in | — | — | — | — | County |
| 27 Jun 2005 | Hail | 1.00 in | — | — | — | — | County |
| 27 Jun 2005 | Hail | 0.75 in | — | — | — | — | County |
| 23 Jun 2005 | Hail | 1.00 in | — | — | — | — | County |
| 23 Jun 2005 | Hail | 0.75 in | — | — | — | — | County |
| 22 Jun 2004 | Hail | 1.75 in | — | — | — | — | County |
| 22 Jun 2004 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jun 2004 | Hail | 0.88 in | — | — | — | — | County |
| 22 Jun 2004 | Hail | 1.75 in | — | — | — | — | County |
| 22 Jun 2004 | Hail | 1.75 in | — | — | — | — | County |
| 22 Jun 2004 | Hail | 1.75 in | — | — | — | — | County |
| 26 Jul 2003 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jun 2003 | Hail | 0.75 in | — | — | — | — | County |
| 22 Jun 2003 | Hail | 1.00 in | — | — | — | — | County |
| 27 Jul 2002 | Hail | 0.75 in | — | — | — | — | County |
| 27 Jul 2002 | Hail | 0.75 in | — | — | — | — | County |
| 27 Jul 2002 | Hail | 0.75 in | — | — | — | — | County |
| 26 Jul 2001 | Hail | 1.00 in | — | — | — | — | County |
| 23 Jul 2001 | Hail | 0.75 in | — | — | — | — | County |
| 23 Jul 2001 | Hail | 0.75 in | — | — | — | — | County |
| 19 Jul 2001 | Hail | 1.75 in | — | — | — | — | County |
| 17 Jul 2001 | Hail | 0.75 in | — | — | — | — | County |
| 13 Jul 2001 | Hail | 0.75 in | — | — | — | — | County |
| 13 Jul 2001 | Hail | 1.00 in | — | — | — | — | County |
| 1 Jul 2001 | Hail | 0.75 in | — | — | — | — | County |
| 26 Jun 2001 | Hail | 0.75 in | — | — | — | — | County |
| 26 Jun 2001 | Hail | 1.00 in | — | — | — | — | County |
| 23 Jun 2001 | Hail | 0.75 in | — | — | — | — | County |
| 23 Jun 2001 | Hail | 0.75 in | — | — | — | — | County |
| 17 Jun 2001 | Hail | 1.25 in | — | — | — | — | County |
| 17 Jun 2001 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jun 2001 | Hail | 1.00 in | — | — | — | — | County |
| 9 Jun 2001 | Hail | 1.00 in | — | — | — | — | County |
| 9 Jul 2000 | Hail | 0.75 in | — | — | — | — | County |
| 15 Aug 1999 | Hail | 0.75 in | — | — | — | — | County |
| 13 Aug 1999 | Hail | 1.00 in | — | — | — | — | County |
| 15 Jul 1999 | Hail | 0.75 in | — | — | — | — | County |
| 12 Jun 1999 | Hail | 0.75 in | — | — | — | — | County |
| 1 Jul 1998 | Hail | 0.88 in | — | — | — | — | County |
| 1 Jul 1998 | Hail | 0.75 in | — | — | — | — | County |
| 1 Jul 1998 | Hail | 0.75 in | — | — | — | — | County |
| 18 Aug 1997 | Hail | 1.00 in | — | — | — | — | County |
| 26 Jul 1997 | Hail | 0.75 in | — | — | — | — | County |
| 20 Jul 1997 | Hail | 1.75 in | — | — | — | — | County |
| 22 May 1997 | Hail | — | — | — | — | — | County |
| 25 Jul 1996 | Hail | 1.00 in | — | — | — | — | County |
| 2 Jul 1996 | Hail | 0.75 in | — | — | — | — | County |
| 2 Jul 1996 | Hail | 0.75 in | — | — | — | — | County |
| 26 Jun 1996 | Hail | 1.75 in | — | — | — | — | County |
| 22 May 1996 | Hail | 1.00 in | — | — | — | — | County |
| 29 Jul 1995 | Hail | 0.01 in | — | — | — | — | County |
| 16 Jun 1995 | Hail | 1.75 in | — | — | — | — | County |
| 16 Jun 1994 | Hail | 1.75 in | $5K | — | — | — | County |
| 8 Jul 1992 | Hail | 1.50 in | — | — | — | — | County |
| 20 May 1991 | Hail | 1.75 in | — | — | — | — | County |
| 20 Aug 1990 | Hail | 1.25 in | — | — | — | — | County |
| 5 Jul 1987 | Hail | 1.75 in | — | — | — | — | County |
| 14 Jun 1962 | Hail | 1.00 in | — | — | — | — | County |
| 8 Jun 1959 | Hail | 0.75 in | — | — | — | — | County |
| 2 Jul 1958 | Hail | 0.75 in | — | — | — | — | County |
| 2 Jul 1958 | Hail | 0.75 in | — | — | — | — | County |
| 18 Jun 1958 | Hail | 1.75 in | — | — | — | — | County |
| 18 Jun 1958 | Hail | 1.75 in | — | — | — | — | County |
| 7 Jun 1958 | Hail | 2.00 in | — | — | — | — | County |
| 7 Jun 1958 | Hail | 1.50 in | — | — | — | — | County |
| 7 Jun 1958 | Hail | 2.00 in | — | — | — | — | County |
| 7 Jun 1958 | Hail | 1.50 in | — | — | — | — | County |
| 22 May 1958 | Hail | 1.00 in | — | — | — | — | County |
Questions and answers
How many hail events has Stillwater County had?
185 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 Stillwater County?
7 Aug 2025 (Hail, 1.75 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Stillwater County?
The hail of 16 Jun 1994, with property damage estimated by NCEI at $5K.
How does Stillwater County compare with Montana for hail?
10.3 events per 100 square miles against 5.8 statewide; the county holds 185 of the state's 8,391 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.