Hail history for Savanna, Illinois
NOAA hail reports in and within about 5 km (3 miles) of Savanna since 1961, with preliminary reports to November 3, 2026.
Readout · Savanna
- Last hail
- Aug 21, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 2.50 in
- tennis ball · Aug 16, 1968
13 reports on 13 days since 1961 · #238 of 378 Illinois places
Hail map · Savanna
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Savanna
The latest hail report in and around Savanna is from August 21, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.25 in on July 10, 2025.
Over the 20 years 2006–2025, Savanna logged 4 reports on 4 hail days, about 0.2 reports a year. That is 40% of the median Illinois town on this site (0.5 a year) and ranks #238 of 378 Illinois cities and towns on this site for all-time reports. Savanna accounts for 17% of the 76 reports filed in Carroll County.
8% 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 August 16, 1968.
The busiest year was 2002, with 2 reports on 2 days. Hail here peaks in April (31% of reports); 62% fall between April and June.
Reports a year 2006–2025 average
- Savanna 0.2
- Carroll County 1.7
- Median Illinois town on this site 0.5
Hail days 2006–2025
- Savanna 4
- Carroll County 21
- Median Illinois town on this site 8
Share 2 in or larger of sized reports
- Savanna 8%
- Carroll 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 | 1 | 1 | |||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 21, 2026 | 1 | 1.00 in | View |
| Jul 10, 2025 | 1 | 1.25 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 16, 1968 | 2.50 intennis ball | — | — | 15:15 local · NCEI |
| Apr 23, 1961 | 1.50 inping pong ball | — | Carroll | 13:10 local · NCEI |
| Jul 10, 2025 | 1.25 inhalf dollar | 1.54 E Savanna | Carroll | 18:25 local · NCEI |
| Aug 21, 2026 | 1.00 inquarter | 1 WNW Savanna | Carroll | 23:49 UTC · NWS prelim. |
| May 2, 2018 | 1.00 inquarter | 0.86 NE Riverview | Carroll | 16:23 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 6 46%
- 1–2 in 6 46%
- 2 in + 1 8%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 21, 2026 | 1.00 inquarter | 1 WNW Savanna | Carroll | 23:49 UTC · NWS prelim. |
| Jul 10, 2025 | 1.25 inhalf dollar | 1.54 E Savanna | Carroll | 18:25 local · NCEI |
| May 2, 2018 | 1.00 inquarter | 0.86 NE Riverview | Carroll | 16:23 local · NCEI |
| May 20, 2014 | 1.00 inquarter | 0.86 NE Savanna | Carroll | 19:31 local · NCEI |
| Jul 27, 2009 | 0.75 inpenny | 1.47 NNE Savanna | Carroll | 20:40 local · NCEI |
| May 30, 2002 | 1.00 inquarter | Riverview | Carroll | 20:55 local · NCEI |
| Apr 18, 2002 | 0.75 inpenny | Savanna | Carroll | 16:53 local · NCEI |
| Jun 8, 1999 | 0.75 inpenny | Savanna | Carroll | 13:07 local · NCEI |
| Apr 30, 1997 | 0.75 inpenny | Savanna | Carroll | 13:35 local · NCEI |
| Apr 19, 1996 | 0.75 inpenny | Savanna | Carroll | 19:36 local · NCEI |
| Sep 21, 1973 | 0.75 inpenny | — | Carroll | 12:30 local · NCEI |
| Aug 16, 1968 | 2.50 intennis ball | — | — | 15:15 local · NCEI |
Hail history near Savanna
- Mount Carroll 13 km · 16
- Thomson 13 km · 13
- Hanover 21 km · 11
- Fulton 26 km · 10
- Stockton 31 km · 20
- Morrison 35 km · 25
- The Galena Territory 37 km · 12
- Lena 41 km · 10
Questions about hail in Savanna
How often does it hail in Savanna, Illinois?
13 hail reports have been logged in and within about 5 km (3 miles) of Savanna since 1961. Over the 20 years 2006–2025 that averages 0.2 reports a year. That ranks #238 of 378 Illinois places by number of reports.
When is hail season in Savanna?
Most reports come in April, May, July. April alone accounts for 31% of all reports.
What is the largest hail recorded in Savanna?
2.50 in (tennis ball size) on August 16, 1968. 8% of reports here were 2 inches or larger.
When did it last hail in Savanna?
The most recent report in this data is from August 21, 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 Savanna 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 August 21, 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.