Hail history for Mount Morris, Illinois
NOAA hail reports in and within about 5 km (3 miles) of Mount Morris since 1991, with preliminary reports to November 3, 2026.
Readout · Mount Morris
- Last hail
- Mar 31, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 1.75 in
- golf ball · Apr 9, 2015
12 reports on 10 days since 1991 · #258 of 378 Illinois places
Hail map · Mount Morris
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Mount Morris is from March 31, 2026. A local roofer can check and document it at no cost.
Phone line opening soon
What the record says about Mount Morris
The latest hail report in and around Mount Morris is from March 31, 2026, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on March 31, 2026.
Over the 20 years 2006–2025, Mount Morris logged 10 reports on 8 hail days, about 0.5 reports a year. That is about the same as the median Illinois town on this site (0.5 a year) and ranks #258 of 378 Illinois cities and towns on this site for all-time reports. Mount Morris accounts for 11% of the 105 reports filed in Ogle County.
0% of reports with a size were 2 inches (hen egg) or larger, against 4% for the median Illinois town on this site. The largest hail on record here is 1.75 in (golf ball) on April 9, 2015 near 2.05 E Mt Morris.
Reports were down 75% in 2016–2025 (2) compared with 2006–2015 (8). The busiest year was 2006, with 3 reports on 2 days. Hail here peaks in April (42% of reports); 58% fall between April and June.
Reports a year 2006–2025 average
- Mount Morris 0.5
- Ogle County 3.2
- Median Illinois town on this site 0.5
Hail days 2006–2025
- Mount Morris 8
- Ogle County 39
- Median Illinois town on this site 8
Share 2 in or larger of sized reports
- Mount Morris 0%
- Ogle County 4%
- Median Illinois town on this site 4%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Mar 31, 2026 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Apr 9, 2015 | 1.75 ingolf ball | 2.05 E Mt Morris | Ogle | 17:45 local · NCEI |
| Mar 31, 2026 | 1.00 inquarter | 0.51 W Mt Morris | Ogle | 09:31 local · NCEI |
| Jul 5, 2017 | 1.00 inquarter | Mt Morris | Ogle | 13:43 local · NCEI |
| May 22, 2011 | 1.00 inquarter | Mt Morris | Ogle | 16:09 local · NCEI |
| Apr 5, 2010 | 1.00 inquarter | Mt Morris | Ogle | 20:10 local · NCEI |
Size of every report
- Under 1 in 4 33%
- 1–2 in 8 67%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Mar 31, 2026 | 1.00 inquarter | 0.51 W Mt Morris | Ogle | — | 09:31 local · NCEI |
| Jul 5, 2017 | 1.00 inquarter | Mt Morris | Ogle | — | 13:43 local · NCEI |
| Apr 10, 2017 | 0.88 innickel | Mt Morris | Ogle | — | 14:05 local · NCEI |
| Apr 9, 2015 | 1.75 ingolf ball | 2.05 E Mt Morris | Ogle | — | 17:45 local · NCEI |
| May 22, 2011 | 1.00 inquarter | Mt Morris | Ogle | — | 16:09 local · NCEI |
| Apr 5, 2010 | 0.88 innickel | 1 S Mt Morris | Ogle | — | 22:28 local · NCEI |
| Apr 5, 2010 | 1.00 inquarter | Mt Morris | Ogle | — | 20:10 local · NCEI |
| May 13, 2009 | 0.75 inpenny | Mt Morris | Ogle | — | 20:44 local · NCEI |
| Oct 2, 2006 | 1.00 inquarter | Mt Morris | Ogle | — | 20:34 local · NCEI |
| Oct 2, 2006 | 1.00 inquarter | Mt Morris | Ogle | — | 20:34 local · NCEI |
| Apr 13, 2006 | 1.00 inquarter | Marengo | Mchenry | $5K | 21:02 local · NCEI |
| Sep 9, 1991 | 0.75 inpenny | — | Ogle | — | 18:56 local · NCEI |
Hail history near Mount Morris
Questions about hail in Mount Morris
How often does it hail in Mount Morris, Illinois?
12 hail reports have been logged in and within about 5 km (3 miles) of Mount Morris since 1991. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #258 of 378 Illinois places by number of reports.
When is hail season in Mount Morris?
Most reports come in April, May, October. April alone accounts for 42% of all reports.
What is the largest hail recorded in Mount Morris?
1.75 in (golf ball size) on April 9, 2015 near 2.05 E Mt Morris. 0% of reports here were 2 inches or larger.
When did it last hail in Mount Morris?
The most recent report in this data is from March 31, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Mount Morris had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was March 31, 2026.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.