Hail history for Rockwood, Tennessee
NOAA hail reports in and within about 5 km (3 miles) of Rockwood since 1958, with preliminary reports to November 3, 2026.
Readout · Rockwood
- Last hail
- Sep 4, 2025
- 0.75 in, penny size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 1.75 in
- golf ball · May 14, 2010
16 reports on 12 days since 1958 · #108 of 180 Tennessee places
Hail map · Rockwood
- 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 Rockwood
The latest hail report in and around Rockwood is from September 4, 2025, 0.75 in (penny size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 0.75 in on September 4, 2025.
Over the 20 years 2006–2025, Rockwood logged 8 reports on 7 hail days, about 0.4 reports a year. That is 20% less than the median Tennessee town on this site (0.5 a year) and ranks #108 of 180 Tennessee cities and towns on this site for all-time reports. Rockwood accounts for 31% of the 51 reports filed in Roane County.
0% of reports with a size were 2 inches (hen egg) or larger, against 3% for the median Tennessee town on this site. The largest hail on record here is 1.75 in (golf ball) on May 14, 2010 near 0.89 NW Rockwood.
Reports were down 40% in 2016–2025 (3) compared with 2006–2015 (5). The busiest year was 2003, with 4 reports on 1 day. Hail here peaks in April (44% of reports); 88% fall between April and June.
Reports a year 2006–2025 average
- Rockwood 0.4
- Roane County 1.1
- Median Tennessee town on this site 0.5
Hail days 2006–2025
- Rockwood 7
- Roane County 17
- Median Tennessee town on this site 8.5
Share 2 in or larger of sized reports
- Rockwood 0%
- Roane County 2%
- Median Tennessee town on this site 3%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 4, 2025 | 1 | 0.75 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| May 14, 2010 | 1.75 ingolf ball | 0.89 NW Rockwood | Roane | — | 15:45 local · NCEI |
| May 14, 2010 | 1.75 ingolf ball | Westel | Cumberland | $25K | 14:45 local · NCEI |
| Jun 14, 2020 | 1.25 inhalf dollar | 1.68 W Eureka | Roane | — | 12:06 local · NCEI |
| Apr 17, 2017 | 1.00 inquarter | Rockwood | Roane | — | 17:50 local · NCEI |
| Jun 15, 2011 | 1.00 inquarter | Rockwood | Roane | — | 12:20 local · NCEI |
Size of every report
- Under 1 in 7 44%
- 1–2 in 9 56%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Sep 4, 2025 | 0.75 inpenny | 0.89 SW Rockwood | Roane | — | 14:49 local · NCEI |
| Jun 14, 2020 | 1.25 inhalf dollar | 1.68 W Eureka | Roane | — | 12:06 local · NCEI |
| Apr 17, 2017 | 1.00 inquarter | Rockwood | Roane | — | 17:50 local · NCEI |
| Jun 15, 2011 | 1.00 inquarter | Rockwood | Roane | — | 12:20 local · NCEI |
| May 14, 2010 | 1.75 ingolf ball | 0.89 NW Rockwood | Roane | — | 15:45 local · NCEI |
| May 14, 2010 | 1.75 ingolf ball | Westel | Cumberland | $25K | 14:45 local · NCEI |
| Jun 15, 2007 | 0.75 inpenny | Rockwood | Roane | — | 14:05 local · NCEI |
| Apr 3, 2007 | 1.00 inquarter | 2.35 WSW Rockwood | Roane | — | 22:13 local · NCEI |
| May 20, 2005 | 0.88 innickel | Rockwood | Roane | — | 14:40 local · NCEI |
| Apr 29, 2003 | 0.75 inpenny | Rockwood | Roane | — | 20:49 local · NCEI |
| Apr 29, 2003 | 0.75 inpenny | Rockwood | Roane | — | 20:47 local · NCEI |
| Apr 29, 2003 | 1.00 inquarter | Rockwood | Roane | — | 16:06 local · NCEI |
Hail history near Rockwood
- Kingston 15 km · 19
- Spring City 27 km · 25
- Wartburg 27 km · 13
- Loudon 32 km · 22
- Crossville 33 km · 35
- Lake Tansi 35 km · 12
- Sweetwater 35 km · 12
- Oak Ridge 36 km · 50
Questions about hail in Rockwood
How often does it hail in Rockwood, Tennessee?
16 hail reports have been logged in and within about 5 km (3 miles) of Rockwood since 1958. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #108 of 180 Tennessee places by number of reports.
When is hail season in Rockwood?
Most reports come in April, May, June. April alone accounts for 44% of all reports.
What is the largest hail recorded in Rockwood?
1.75 in (golf ball size) on May 14, 2010 near 0.89 NW Rockwood. 0% of reports here were 2 inches or larger.
When did it last hail in Rockwood?
The most recent report in this data is from September 4, 2025 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Rockwood 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 September 4, 2025.
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.