Sac County, Iowa Hail Map & History
Sac County was hit as recently as 2026-10-08, 22 days ago. Sac County is hit in most years. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2023-04-19 near Early.
Hail size, inches
- 0.25 in, pea
- 0.75 in, penny
- 1 in, quarter
- 1.25 in, half dollar
- 1.5 in, ping pong ball
- 1.75 in, golf ball
- 2 in, hen egg
- 2.5 in, tennis ball
- 3 in and up, teacup
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Iowa. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-10-08, around Wall Lake. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Sac County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
Get free access Check an addressOur US-based call center calls the homeowners in this storm and books roof inspections straight onto your calendar. You work the storm; we fill the schedule. We dial -- you do not have to knock a single door.
See call-center options ->How often it hails in Sac County
NOAA's Storm Prediction Center has logged 21 separate hail days here since 2010 -- 1.2 a year over 17 years of record. They carry 34 reports in total: most hail days here are logged from a single spot. 3 of those 17 years produced none at all. The busiest single year was 2021, with 3 hail days. The last five years track the long-run rate, with 5 days since 2022.
3 of the 21 days reached 2 inches or more -- 14%, or about one hail day in 7, the last on 2023-04-19. Those big days do not follow the county's usual calendar: most of them fall in April, not June. 6 of the 21 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Iowa, see the Iowa hail map and history.
Hardest-hit places in Sac County
Reports cluster nearest Odebolt -- 5 of the county's 21 hail days -- then Schaller (5), Sac City (3), Wall Lake (3) and Lytton (3). Beyond those, NOAA names Early on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Wall Lake | 2 | 1.75″ |
| Lytton | 2 | 1.50″ |
| Schaller | 2 | 1.50″ |
| 3 S Early | 1 | 2.75″ |
| 3 S Sac City | 1 | 2.00″ |
When it hails in Sac County
The season runs April through June: 17 of the 21 hail days on record fall in those 3 months (81%). June is the single busiest month, with 7 of them (33%). That peak closes the window: the season builds all the way to its worst month and then stops. Hail has also been reported in March, August, September and October, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| March | 1 |
| April | 5 |
| May | 5 |
| June | 7 |
| August | 1 |
| September | 1 |
| October | 1 |
Recent Sac County hail days
That day put 3 reports on the map, the biggest 1.75 inches near Wall Lake. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-10-08 | 1.75″ | 3 |
| 2025-04-23 | 1.00″ | 1 |
| 2024-05-25 | 1.00″ | 1 |
| 2023-04-19 | 2.75″ | 4 |
| 2022-04-12 | 1.00″ | 1 |
| 2021-09-13 | 1.50″ | 1 |
| 2021-06-22 | 1.50″ | 2 |
| 2021-06-16 | 1.50″ | 2 |
How to read the Sac County map
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Deep violet is about an inch, the violet grows lighter as the hail grows, and pale lilac to near-white is 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 2.75 inches, which is the pale lilac band. Look up a street address with the hail history by address tool.
Nearby counties
The nearest counties with a page of their own: Ida County (21 hail days), Calhoun County (27) and Buena Vista County (21). Sac County sits in between.
Ida County · Calhoun County · Buena Vista County
Back to the Iowa hail map or the U.S. hail map.
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Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Sac County, Iowa only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.