Hail history for Petersburg, Illinois
NOAA hail reports in and within about 5 km (3 miles) of Petersburg since 1978, with preliminary reports to November 3, 2026.
Readout · Petersburg
- Last hail
- May 4, 2026
- 0.75 in, penny size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 2.50 in
- tennis ball · Dec 8, 1991
25 reports on 22 days since 1978 · #81 of 378 Illinois places
Hail map · Petersburg
- 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 Petersburg is from May 4, 2026. A local roofer can check and document it at no cost.
Phone line opening soon
What the record says about Petersburg
The latest hail report in and around Petersburg is from May 4, 2026, 0.75 in (penny size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on June 29, 2023.
Over the 20 years 2006–2025, Petersburg logged 12 reports on 9 hail days, about 0.6 reports a year. That is 20% more than the median Illinois town on this site (0.5 a year) and ranks #81 of 378 Illinois cities and towns on this site for all-time reports. Petersburg accounts for 31% of the 81 reports filed in Menard County.
4% 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 2.50 in (tennis ball) on December 8, 1991.
Reports were down 50% in 2016–2025 (4) compared with 2006–2015 (8). The busiest year was 2009, with 3 reports on 2 days. Hail here peaks in May (24% of reports); 48% fall between April and June.
Reports a year 2006–2025 average
- Petersburg 0.6
- Menard County 2.2
- Median Illinois town on this site 0.5
Hail days 2006–2025
- Petersburg 9
- Menard County 30
- Median Illinois town on this site 8
Share 2 in or larger of sized reports
- Petersburg 4%
- Menard County 5%
- 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 | 1 | 1 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 2 | 2 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 4, 2026 | 1 | 0.75 in | — |
| Jun 29, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Dec 8, 1991 | 2.50 intennis ball | — | Menard | 14:39 local · NCEI |
| Nov 17, 2013 | 1.75 ingolf ball | 1 N Petersburg | Menard | 11:25 local · NCEI |
| Aug 24, 1997 | 1.75 ingolf ball | 3 NE Petersburg | Menard | 16:33 local · NCEI |
| Apr 16, 1982 | 1.75 ingolf ball | — | Menard | 18:30 local · NCEI |
| Apr 14, 2006 | 1.25 inhalf dollar | Petersburg | Menard | 08:40 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 10 40%
- 1–2 in 14 56%
- 2 in + 1 4%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 4, 2026 | 0.75 inpenny | 0.87 SW Petersburg | Menard | 22:18 local · NCEI |
| Jun 29, 2023 | 1.00 inquarter | Petersburg | Menard | 07:20 local · NCEI |
| Oct 24, 2021 | 1.00 inquarter | 2 SE Petersburg | Menard | 17:45 local · NCEI |
| Jan 22, 2018 | 0.75 inpenny | Petersburg | Menard | 14:00 local · NCEI |
| Jan 22, 2018 | 1.00 inquarter | 2 NW Petersburg | Menard | 13:31 local · NCEI |
| Nov 17, 2013 | 1.00 inquarter | Petersburg | Menard | 11:26 local · NCEI |
| Nov 17, 2013 | 1.75 ingolf ball | 1 N Petersburg | Menard | 11:25 local · NCEI |
| Jul 26, 2011 | 0.75 inpenny | Petersburg | Menard | 16:10 local · NCEI |
| May 15, 2009 | 0.75 inpenny | 0.69 N Petersburg | Menard | 16:12 local · NCEI |
| May 7, 2009 | 0.88 innickel | Petersburg | Menard | 16:11 local · NCEI |
| May 7, 2009 | 0.88 innickel | 2 E Petersburg | Menard | 16:05 local · NCEI |
| Jul 21, 2008 | 1.00 inquarter | 1 N Petersburg | Menard | 19:45 local · NCEI |
Hail history near Petersburg
- Athens 12 km · 20
- Greenview 12 km · 12
- Sherman 25 km · 20
- Williamsville 27 km · 10
- Springfield 30 km · 108
- Elkhart 31 km · 10
- New Berlin 33 km · 12
- Havana 36 km · 16
Questions about hail in Petersburg
How often does it hail in Petersburg, Illinois?
25 hail reports have been logged in and within about 5 km (3 miles) of Petersburg since 1978. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #81 of 378 Illinois places by number of reports.
When is hail season in Petersburg?
Most reports come in May, April, July. May alone accounts for 24% of all reports.
What is the largest hail recorded in Petersburg?
2.50 in (tennis ball size) on December 8, 1991. 4% of reports here were 2 inches or larger.
When did it last hail in Petersburg?
The most recent report in this data is from May 4, 2026 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Petersburg had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was May 4, 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.