RoofTake

Historical hail archive: January 2016–December 2025. NOAA radar estimates within 25 miles of each city centre. ZIP matches use the first three digits; this is not a property-level report or a live alert service. Coverage and source.

Olmsted County · Minnesota · NOAA radar record 2016–2025

Hail damage in Rochester, MN

Radar has detected hail over Rochester on 207 separate days since 2016. On 56 of them the largest stone was estimated at golf-ball size or bigger. The biggest was 10.2 cm on May 11, 2022.

67/100 RoofTake Score — High hail exposure · ranked 41 of 50 metros we cover

A high value in this historical exposure model. Radar estimates do not establish what reached a property or whether it was damaged.

How we got to that number
ComponentValueWeightContribution
Frequency
Hail days per year at 1.00 in (2.5 cm) or larger		41 / 100× 0.3514.3
Severity
Largest stone radar estimated in the whole window		100 / 100× 0.3030.0
Recency
How long since the last 2 in (5 cm) day		92 / 100× 0.2018.5
Concentration
Hail days per year reaching golf-ball size		28 / 100× 0.154.2
RoofTake Score67

The score describes an area, not a house. Two roofs on the same street of different ages face very different risk from the identical storm. The whole formula and its weights are on the methodology page, and you can recompute it yourself from our public data.

207hail days on radar since 2016
56at golf-ball size (1.75 in) or larger
10.2 cmlargest stone estimated, May 11, 2022
20.7hail days per year, average

Southeast Minnesota hail arrives late in the day from storms that formed in Iowa.

Check your own ZIP code Is your roof damaged?

Data last refreshed: · source: NOAA NCEI Severe Weather Data Inventory, dataset nx3hail

The ten biggest hail days in Rochester since 2016

DateRadar max sizeMetric ComparisonSignatures
June 18, 20214.00 in10.2 cmGrapefruit94
May 11, 20224.00 in10.2 cmGrapefruit153
June 12, 20173.00 in7.6 cmTeacup122
June 16, 20173.00 in7.6 cmTeacup64
June 4, 20193.00 in7.6 cmTeacup95
May 19, 20223.00 in7.6 cmTeacup88
August 1, 20243.00 in7.6 cmTeacup76
June 28, 20192.75 in7.0 cmBaseball393
May 20, 20222.75 in7.0 cmBaseball115
June 3, 20242.75 in7.0 cmBaseball24

"Signatures" is the number of separate radar volume scans that detected hail in a storm cell within 25 miles that day. More signatures means a longer-lived or larger storm, not necessarily bigger stones.

Hail days by year

201618
201726
201824
201923
202019
202120
202225
202316
202420
202516

Busiest year in the record: 2017 with 26 hail days.

Hail days by month

Mar5
Apr12
May32
Jun41
Jul47
Aug42
Sep22
Oct6

Peak month: July. Hail season in Minnesota is short and it is not distributed evenly — most of the annual risk arrives in a few weeks.

What to do with this if you own a roof in Rochester

  1. Find your dates. Look up your ZIP for the record nearest you, and note every day at 1.00 in or above since you bought the house.
  2. Work out whether your roof could have survived them. A twelve-year-old asphalt roof and a two-year-old one respond very differently to the same stone — the age calculator explains why.
  3. Look, before you file. Nine photographs, none of them requiring you to get on the roof.
  4. Check the arithmetic. If the actual cash value of the damage is under your deductible, filing pays nothing — work it out first.
  5. Then write. The letter generator puts the Rochester radar record and the NOAA citation into your notice of claim.

Every hail day radar recorded near Rochester

207 days, most recent first. Sizes are radar estimates of the largest stone aloft in the cell, not measurements at any address.

  1. September 22, 2025
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    110 radar signatures · closest signature 1.15 mi from the centroid · hail probability 100%, severe 70%
  2. August 28, 2025
    2.50 in (6.3 cm) — Tennis ball size, radar-estimated
    16 radar signatures · closest signature 7.84 mi from the centroid · hail probability 100%, severe 100%
  3. August 17, 2025
    1.75 in (4.4 cm) — Golf ball size, radar-estimated
    16 radar signatures · closest signature 20.35 mi from the centroid · hail probability 100%, severe 70%
  4. August 16, 2025
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    67 radar signatures · closest signature 1.18 mi from the centroid · hail probability 100%, severe 50%
  5. August 9, 2025
    2.25 in (5.7 cm) — Hen egg size, radar-estimated
    132 radar signatures · closest signature 0.71 mi from the centroid · hail probability 100%, severe 80%
  6. July 29, 2025
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    11 radar signatures · closest signature 5.8 mi from the centroid · hail probability 100%, severe 60%
  7. July 24, 2025
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    4 radar signatures · closest signature 18.28 mi from the centroid · hail probability 100%, severe 60%
  8. July 23, 2025
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    48 radar signatures · closest signature 9.2 mi from the centroid · hail probability 100%, severe 40%
  9. July 2, 2025
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    3 radar signatures · closest signature 5.72 mi from the centroid · hail probability 100%, severe 70%
  10. May 20, 2025
    0.75 in (1.9 cm) — Penny size, radar-estimated
    1 radar signature · closest signature 24.02 mi from the centroid · hail probability 100%, severe 40%
  11. May 15, 2025
    2.00 in (5.1 cm) — Hen egg size, radar-estimated
    24 radar signatures · closest signature 1.71 mi from the centroid · hail probability 100%, severe 90%
  12. April 29, 2025
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    12 radar signatures · closest signature 3.57 mi from the centroid · hail probability 100%, severe 70%
  13. April 28, 2025
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    24 radar signatures · closest signature 11.22 mi from the centroid · hail probability 100%, severe 80%
  14. April 17, 2025
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    14 radar signatures · closest signature 12.81 mi from the centroid · hail probability 100%, severe 80%
  15. April 13, 2025
    0.75 in (1.9 cm) — Penny size, radar-estimated
    2 radar signatures · closest signature 13.37 mi from the centroid · hail probability 100%, severe 40%
  16. March 28, 2025
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    64 radar signatures · closest signature 8.93 mi from the centroid · hail probability 100%, severe 80%
  17. October 25, 2024
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    7 radar signatures · closest signature 9.22 mi from the centroid · hail probability 100%, severe 50%
  18. September 21, 2024
    0.75 in (1.9 cm) — Penny size, radar-estimated
    1 radar signature · closest signature 24.72 mi from the centroid · hail probability 100%, severe 20%
  19. September 19, 2024
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    33 radar signatures · closest signature 10.42 mi from the centroid · hail probability 100%, severe 60%
  20. August 29, 2024
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    11 radar signatures · closest signature 16.0 mi from the centroid · hail probability 100%, severe 50%
  21. August 27, 2024
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    10 radar signatures · closest signature 13.65 mi from the centroid · hail probability 100%, severe 40%
  22. August 6, 2024
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    14 radar signatures · closest signature 2.58 mi from the centroid · hail probability 100%, severe 40%
  23. August 1, 2024
    3.00 in (7.6 cm) — Teacup size, radar-estimated
    76 radar signatures · closest signature 11.04 mi from the centroid · hail probability 100%, severe 100%
  24. July 31, 2024
    2.50 in (6.3 cm) — Tennis ball size, radar-estimated
    3 radar signatures · closest signature 21.63 mi from the centroid · hail probability 100%, severe 90%
  25. July 14, 2024
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    28 radar signatures · closest signature 11.39 mi from the centroid · hail probability 100%, severe 60%
  26. July 13, 2024
    2.75 in (7.0 cm) — Baseball size, radar-estimated
    102 radar signatures · closest signature 4.84 mi from the centroid · hail probability 100%, severe 100%
  27. July 4, 2024
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    12 radar signatures · closest signature 9.22 mi from the centroid · hail probability 100%, severe 60%
  28. June 24, 2024
    0.75 in (1.9 cm) — Penny size, radar-estimated
    6 radar signatures · closest signature 13.73 mi from the centroid · hail probability 100%, severe 20%
  29. June 17, 2024
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    20 radar signatures · closest signature 3.31 mi from the centroid · hail probability 100%, severe 50%
  30. June 16, 2024
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    7 radar signatures · closest signature 15.8 mi from the centroid · hail probability 100%, severe 60%
  31. June 3, 2024
    2.75 in (7.0 cm) — Baseball size, radar-estimated
    24 radar signatures · closest signature 4.51 mi from the centroid · hail probability 100%, severe 100%
  32. May 27, 2024
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    4 radar signatures · closest signature 12.68 mi from the centroid · hail probability 100%, severe 100%
  33. May 22, 2024
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    8 radar signatures · closest signature 18.01 mi from the centroid · hail probability 100%, severe 90%
  34. May 21, 2024
    2.25 in (5.7 cm) — Hen egg size, radar-estimated
    94 radar signatures · closest signature 3.63 mi from the centroid · hail probability 100%, severe 100%
  35. May 20, 2024
    1.75 in (4.4 cm) — Golf ball size, radar-estimated
    28 radar signatures · closest signature 7.67 mi from the centroid · hail probability 100%, severe 90%
  36. May 7, 2024
    0.75 in (1.9 cm) — Penny size, radar-estimated
    2 radar signatures · closest signature 14.65 mi from the centroid · hail probability 100%, severe 90%
  37. October 24, 2023
    2.00 in (5.1 cm) — Hen egg size, radar-estimated
    145 radar signatures · closest signature 2.2 mi from the centroid · hail probability 100%, severe 90%
  38. September 30, 2023
    0.75 in (1.9 cm) — Penny size, radar-estimated
    3 radar signatures · closest signature 14.99 mi from the centroid · hail probability 100%, severe 30%
  39. September 23, 2023
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    3 radar signatures · closest signature 19.01 mi from the centroid · hail probability 100%, severe 50%
  40. August 12, 2023
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    18 radar signatures · closest signature 14.04 mi from the centroid · hail probability 100%, severe 80%
  41. August 11, 2023
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    16 radar signatures · closest signature 14.24 mi from the centroid · hail probability 100%, severe 80%
  42. July 28, 2023
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    3 radar signatures · closest signature 23.68 mi from the centroid · hail probability 100%, severe 40%
  43. July 26, 2023
    1.50 in (3.8 cm) — Ping-pong ball size, radar-estimated
    15 radar signatures · closest signature 19.32 mi from the centroid · hail probability 100%, severe 70%
  44. July 23, 2023
    2.00 in (5.1 cm) — Hen egg size, radar-estimated
    33 radar signatures · closest signature 8.7 mi from the centroid · hail probability 100%, severe 100%
  45. July 22, 2023
    2.25 in (5.7 cm) — Hen egg size, radar-estimated
    147 radar signatures · closest signature 2.44 mi from the centroid · hail probability 100%, severe 100%
  46. July 14, 2023
    2.25 in (5.7 cm) — Hen egg size, radar-estimated
    4 radar signatures · closest signature 20.66 mi from the centroid · hail probability 100%, severe 100%
  47. July 11, 2023
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    25 radar signatures · closest signature 9.94 mi from the centroid · hail probability 100%, severe 60%
  48. July 5, 2023
    0.75 in (1.9 cm) — Penny size, radar-estimated
    2 radar signatures · closest signature 20.55 mi from the centroid · hail probability 100%, severe 30%
  49. July 4, 2023
    0.50 in (1.3 cm) — Marble size, radar-estimated
    1 radar signature · closest signature 10.97 mi from the centroid · hail probability 100%
  50. July 3, 2023
    0.75 in (1.9 cm) — Penny size, radar-estimated
    3 radar signatures · closest signature 24.01 mi from the centroid · hail probability 100%, severe 30%
  51. June 2, 2023
    0.75 in (1.9 cm) — Penny size, radar-estimated
    1 radar signature · closest signature 24.83 mi from the centroid · hail probability 100%, severe 30%
  52. March 31, 2023
    0.75 in (1.9 cm) — Penny size, radar-estimated
    10 radar signatures · closest signature 9.2 mi from the centroid · hail probability 100%, severe 70%
  53. October 24, 2022
    0.75 in (1.9 cm) — Penny size, radar-estimated
    2 radar signatures · closest signature 23.03 mi from the centroid · hail probability 100%, severe 30%
  54. October 12, 2022
    0.75 in (1.9 cm) — Penny size, radar-estimated
    12 radar signatures · closest signature 4.18 mi from the centroid · hail probability 100%, severe 50%
  55. September 3, 2022
    1.25 in (3.2 cm) — Half dollar size, radar-estimated
    38 radar signatures · closest signature 6.3 mi from the centroid · hail probability 100%, severe 60%
  56. August 27, 2022
    0.75 in (1.9 cm) — Penny size, radar-estimated
    1 radar signature · closest signature 14.7 mi from the centroid · hail probability 100%, severe 30%
  57. August 25, 2022
    0.75 in (1.9 cm) — Penny size, radar-estimated
    1 radar signature · closest signature 18.84 mi from the centroid · hail probability 100%, severe 20%
  58. August 19, 2022
    1.00 in (2.5 cm) — Quarter size, radar-estimated
    4 radar signatures · closest signature 4.08 mi from the centroid · hail probability 100%, severe 50%
  59. August 7, 2022
    0.75 in (1.9 cm) — Penny size, radar-estimated
    14 radar signatures · closest signature 5.71 mi from the centroid · hail probability 100%, severe 20%
  60. August 3, 2022
    1.75 in (4.4 cm) — Golf ball size, radar-estimated
    16 radar signatures · closest signature 9.49 mi from the centroid · hail probability 100%, severe 70%

Showing the 60 most recent of 207. The full record is in the JSON we publish: rochester-mn.json.

From people in Rochester

The part of this page that no dataset can produce. Everything here is read by a human before it appears.

Neighbourhood reports

No reports for Rochester yet. Be the first — it takes thirty seconds and it is the single most useful thing for the next person on this page.

No name, no email, no address. Structured fields only — why.

Claim outcomes

Nobody has shared a Rochester claim outcome yet. Approved, denied, how long it took — anonymously. This is the number the industry never publishes.

Anonymous, and we do not ask which insurer — structured outcomes only, so nobody can be defamed and nobody can be identified.

Damage photos from Rochester storms

No photos yet for Rochester. Photos of real hail damage, tied to a real date and place, are the one thing on this subject the internet is genuinely short of.

By uploading you confirm the photo is yours and you are happy for it to appear on this page. Strip the location data first if you would rather not share it — we remove it on our side too. Terms.

Hail in Rochester, MN: common questions

How often does Rochester get damaging hail?

Radar recorded 207 hail days within 25 miles of the city centre between 2016 and 2025 — an average of 20.7 a year, of which 5.6 a year were at golf-ball size or larger. Not every one of those damages roofs.

When is hail season in Rochester?

The busiest month in this record is July, and 2017 was the busiest single year with 26 hail days.

Does this mean my roof is damaged?

No. These are radar estimates of the largest stone aloft in a storm cell somewhere within 25 miles of the city centre. Whether anything landed on your street, and whether it damaged your particular roof, needs somebody to look.

How do I use this for an insurance claim?

A specific date with a public, citable source is what turns 'sometime last year' into a date of loss. Use the claim letter generator, which pulls the date and the NOAA citation in for you.

Why 25 miles?

It is wide enough to catch storms that clipped the metro and narrow enough that the number still means something for a house inside it. The same radius is used for every metro so the pages are comparable.

Get quotes from roofers who work in Rochester

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