Boston, Massachusetts hail history
36
Days with hail on record
30
Carried by two or more independent sources
36
Measured by a person or an instrument
2.00in
Largest measured, Aug 2015
What was searched
| Evidence | Sources | Record from | Reports within 10 mi |
|---|---|---|---|
| Ground observation | ×6 | 1996 | 207 |
| Radar detection | ×1 | When an address is run | None |
| Official NWS warning | ×1 | When an address is run | None |
| Federal declaration | ×1 | When an address is run | None |
Hail days by year in Boston, MA
Measured Detected only 1.00″ or more
Each mark is one day with hail on record, placed where it fell in the year, and each opens the record for that day. A row with nothing on it is a year with nothing on record.
Best-attested hail storms near Boston
Most sources first
| Date | Largest | Measured | Reports | Sources |
|---|---|---|---|---|
| 04 Aug 2015 | 2.00″ | 2.00″ | 34 | ×3 |
| 18 Jul 2012 | 1.75″ | 1.75″ | 30 | ×3 |
| 04 Jun 2010 | 1.50″ | 1.50″ | 7 | ×3 |
| 20 Jun 2010 | 1.25″ | 1.25″ | 7 | ×3 |
| 07 Jul 2021 | 1.00″ | 1.00″ | 3 | ×3 |
| 28 Jun 2020 | 1.00″ | 1.00″ | 6 | ×3 |
| 29 Sep 2017 | 1.00″ | 1.00″ | 3 | ×3 |
| 30 Oct 2012 | 1.00″ | 1.00″ | 3 | ×3 |
Sources per hail day near Boston
- One source
- 6
- Two
- 3
- Three or more
- 27
A day carried by one report is a report. A day that radar, a trained observer and a warning all describe is a storm, and it is the kind of day a file can rest on. Every report on these days keeps its own source.
- Wind days
- 391
- Tornado days
- 3
On record within the same 10 miles. Wind history for Boston. A report for an address searches every family.
Largest hail recorded near Boston, MA
Measured Detected, not measured
| Date | Size | Evidence | From centre |
|---|---|---|---|
| 04 Aug 2015 | 2.00″ | Ground observation | 5.6 mi WSW |
| 04 Aug 2015 | 2.00″ | Ground observation | 5.6 mi WSW |
| 04 Aug 2015 | 2.00″ | Ground observation | 5.6 mi WSW |
| 18 Jul 2012 | 1.75″ | Ground observation | 10.0 mi NNW |
| 18 Jul 2012 | 1.75″ | Ground observation | 6.7 mi NNW |
| 18 Jul 2012 | 1.75″ | Ground observation | 6.9 mi NNW |
| 18 Jul 2012 | 1.75″ | Ground observation | 6.7 mi NNW |
| 18 Jul 2012 | 1.75″ | Ground observation | 10.0 mi NNW |
The finder lists every day with hail on record within 10 miles of an address in the last 2 years, ranked by how many independent sources carried it, so the day a file names is a day the record holds.
A roof has an age. The record has its days: roof age and hail exposure counts every hail day on record near an address since the year the roof went on.
Get the hail report for an address in Boston, MA
Everything above is the record around Boston: enough to know there is something to cite, and from where. None of it says what reached one roof.
Run the address and the same archive is searched at the property: the storm, the date, the measured size, the distance and bearing from the roof, and the federal record each figure came from, in a document that states its own method. About a minute.
Questions about hail in Boston, MA
How many hail days has Boston, MA had on record?
36 days with hail within 10 miles of the centre of Boston since 1996, 30 of them carried by two or more independent sources and 36 with hail measured by a person or an instrument.
When did it last hail in Boston, MA?
The most recent hail on record near Boston fell on 7 July 2021, with its largest report 1.00 inches, measured.
What is the largest hail measured near Boston?
2.00 inches, measured on 4 August 2015, 5.6 miles WSW of the centre of Boston.
How do I get a hail report for an address in Boston?
Enter the address on this page. The Titan Weather report is the paid document: it searches the same archive at the property and lists every hail report with its date, measured size, distance and bearing from the roof, and the federal source it came from. The date-of-loss finder is free and lists the hail days on record near Boston first.
Hail history near Boston
Within 30 miles of Boston, nearest first. A storm that crossed one of these crossed the others, and their counts overlap.
- Winthrop Town 4 mi 32 days
- Chelsea 4 mi 33 days
- Everett 5 mi 39 days
- Quincy 5 mi 28 days
- Somerville 6 mi 39 days
- Cambridge 6 mi 38 days
- Revere 6 mi 32 days
- Malden 7 mi 36 days
How this page is made
- What counted
- Every hail report in the archive with a point within 10 miles of the Census centre of Boston (42.3386, -71.0183). A hail day is a calendar date with at least one report: four sources describing one storm are one afternoon of hail, not four.
- Measured and detected
- A report from a person or an instrument is measured. A radar-derived size is a detection and is marked as one, here and in every document we issue. The two are never added together.
- Severe
- A day counts as severe when its largest report reached 1.00″, the National Weather Service criterion. Smaller hail is still on the record, and still on this page.
- What this is not
- Neighbouring places share reports, so counts are not exclusive. This page is the record around a place; it is not a report on any property, and it states no opinion about one.
- Terms used on this page
- Storm day, independent source, measured and detected: each term this page uses is defined in the glossary as the report prints it.
- Alerts
- The next storm day to enter the record near Boston can be sent to your inbox, with the figures its page states and nothing about any roof.
- The record
- Searched from 1996 to today. Compiled 24 August 2026 and rebuilt daily as the archive deepens. Records are reproduced as the federal sources published them. The coverage page states what the record holds, by kind and by year.
About this record
Everything here is reproduced from public federal and volunteer weather records, as the agencies and observer networks that publish them released it. Titan Weather compiles the record; it does not observe the weather, and it is not affiliated with any source it cites.
No archive holds everything. Storms cross places where nobody is standing, instruments and spotters cover some areas better than others, sources revise their records, and recent reports can take weeks to arrive and settle. Where this page shows nothing, nothing was found in the sources searched, within the period and area it states. That is not a finding that no weather occurred.
These pages describe the public record near a place or on a date. They do not establish what reached any particular property, and nothing here is insurance, legal or engineering advice.