Isanti County was hit as recently as 2026-06-19, 42 days ago. Isanti County is hit in about half the years on record. The largest stone on record here is 2 inches, a hen egg and twice the National Weather Service's 1 inch severe criterion, reported on 2013-09-19 near Cambridge.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Minnesota. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-06-19, around Day. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Isanti County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 14 separate hail days here since 2010 -- 0.8 a year over 17 years of record. Those days carry 26 separate reports between them, two or three on a typical one. 8 of those 17 years produced none at all. One year dominates the record: 2022 alone produced 4 of the 14 days. The last five years have run hotter than the long-run rate: 7 days since 2022, against 0.6 a year before that.
Most hail here stays under 2 inches: only 1 of the 14 days on record passed it, 7%, the last on 2013-09-19. Those big days do not follow the county's usual calendar: most of them fall in September, not May. 4 of the 14 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Minnesota, see the Minnesota hail map and history.
Reports cluster nearest Cambridge -- 3 of the county's 14 hail days -- then Braham (3), Isanti (3), St. Francis (3) and Spencer Brook (2).
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Isanti | 3 | 1.75″ |
| Cambridge | 2 | 1.75″ |
| 5 Nne St. Francis | 2 | 1.25″ |
| Braham | 2 | 1.25″ |
| 1 S Cambridge | 1 | 2.00″ |
The season runs April through August: 12 of the 14 hail days on record fall in those 5 months (86%). May is the single busiest month, with 4 of them (29%). That peak sits inside the window rather than at either end. Hail has also been reported in March and September, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| March | 1 |
| April | 2 |
| May | 4 |
| June | 1 |
| July | 3 |
| August | 2 |
| September | 1 |
That day put 2 reports on the map, the biggest 1 inch near Day. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-19 | 1.00″ | 2 |
| 2023-08-11 | 1.00″ | 1 |
| 2023-07-27 | 1.25″ | 3 |
| 2022-05-30 | 1.25″ | 1 |
| 2022-05-12 | 1.25″ | 1 |
| 2022-05-09 | 1.75″ | 5 |
| 2022-04-23 | 1.00″ | 1 |
| 2021-04-05 | 1.00″ | 1 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 2 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Chisago County (15 hail days), Anoka County (22) and Kanabec County (22). Every one of them takes more hail than Isanti County.
Chisago County · Anoka County · Kanabec County
Back to the Minnesota hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Isanti County, Minnesota only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.