Hail history for Spencer, Iowa
NOAA hail reports in and within about 5 km (3 miles) of Spencer since 1957, with preliminary reports to November 3, 2026.
Readout · Spencer
- Last hail
- Aug 8, 2026
- 0.70 in, marble size · preliminary
- Hail days, last 5 years
- 6
- since Nov 3, 2021 · 8 reports
- Largest ever
- 4.25 in
- grapefruit · May 21, 2004
68 reports on 44 days since 1957 · #17 of 483 Iowa places
Hail map · Spencer
- 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 Spencer
The latest hail report in and around Spencer is from August 8, 2026, 0.70 in (marble size). Since November 3, 2021 there have been 6 separate hail days; the biggest stones in that time were 1.75 in on May 24, 2024.
Over the 20 years 2006–2025, Spencer logged 21 reports on 13 hail days, about 1.1 reports a year. That is about twice the median Iowa town on this site (0.5 a year) and ranks #17 of 483 Iowa cities and towns on this site for all-time reports. Spencer accounts for 27% of the 253 reports filed in Clay County.
10% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Iowa town on this site. The largest hail on record here is 4.25 in (grapefruit) on May 21, 2004 near 5 S Spencer.
Reports were up 100% in 2016–2025 (14) compared with 2006–2015 (7). The busiest year was 2004, with 7 reports on 3 days. Hail here peaks in June (31% of reports); 68% fall between April and June.
Reports a year 2006–2025 average
- Spencer 1.1
- Clay County 4.3
- Median Iowa town on this site 0.5
Hail days 2006–2025
- Spencer 13
- Clay County 47
- Median Iowa town on this site 7
Share 2 in or larger of sized reports
- Spencer 10%
- Clay County 7%
- Median Iowa town on this site 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 2 | 3 | ||||||||||
| 2023 | 2 | 2 | |||||||||||
| 2022 | 2 | 2 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 4 | 4 | |||||||||||
| 2018 | 2 | 2 | |||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 8, 2026 | 1 | 0.70 in | View |
| Jun 17, 2024 | 2 | 1.00 in | — |
| May 24, 2024 | 1 | 1.75 in | — |
| Oct 23, 2023 | 2 | 1.00 in | — |
| Apr 23, 2022 | 1 | 0.88 in | — |
| Apr 12, 2022 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| May 21, 2004 | 4.25 ingrapefruit | 5 S Spencer | Clay | $500K | 16:19 local · NCEI |
| May 21, 2004 | 4.25 ingrapefruit | Spencer | Clay | $500K | 10:05 local · NCEI |
| May 21, 2004 | 2.75 inbaseball | Spencer | Clay | — | 10:06 local · NCEI |
| Jul 11, 1960 | 2.75 inbaseball | — | Clay | — | 17:30 local · NCEI |
| May 21, 2004 | 2.50 intennis ball | Spencer | Clay | — | 10:00 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 27 40%
- 1–2 in 34 50%
- 2 in + 7 10%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 8, 2026 | 0.70 inmarble | 1 NNE Spencer | Clay | 08:39 UTC · NWS prelim. |
| Jun 17, 2024 | 0.75 inpenny | 2.12 WNW Dickens | Clay | 16:00 local · NCEI |
| Jun 17, 2024 | 1.00 inquarter | Spencer | Clay | 15:42 local · NCEI |
| May 24, 2024 | 1.75 ingolf ball | 2.61 ESE Spencer | Clay | 01:48 local · NCEI |
| Oct 23, 2023 | 1.00 inquarter | 1.01 E Spencer | Clay | 23:07 local · NCEI |
| Oct 23, 2023 | 1.00 inquarter | 0.86 SE Spencer | Clay | 22:55 local · NCEI |
| Apr 23, 2022 | 0.88 innickel | 1.47 SSE Spencer | Clay | 05:39 local · NCEI |
| Apr 12, 2022 | 0.88 innickel | Spencer | Clay | 17:08 local · NCEI |
| Jun 27, 2019 | 1.00 inquarter | 0.69 S Spencer | Clay | 11:50 local · NCEI |
| Jun 27, 2019 | 1.25 inhalf dollar | 0.86 SE Spencer | Clay | 11:48 local · NCEI |
| Jun 27, 2019 | 1.00 inquarter | 1.47 SSE Spencer | Clay | 11:46 local · NCEI |
| Jun 27, 2019 | 1.50 inping pong ball | (3se)spencer Muni Ar | Clay | 11:43 local · NCEI |
Hail history near Spencer
Questions about hail in Spencer
How often does it hail in Spencer, Iowa?
68 hail reports have been logged in and within about 5 km (3 miles) of Spencer since 1957. Over the 20 years 2006–2025 that averages 1.1 reports a year. That ranks #17 of 483 Iowa places by number of reports.
When is hail season in Spencer?
Most reports come in June, May, August. June alone accounts for 31% of all reports.
What is the largest hail recorded in Spencer?
4.25 in (grapefruit size) on May 21, 2004 near 5 S Spencer. 10% of reports here were 2 inches or larger.
When did it last hail in Spencer?
The most recent report in this data is from August 8, 2026 (0.70 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Spencer had in the last five years?
6 separate days with hail reports since November 3, 2021, adding up to 8 reports. The most recent was August 8, 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.