Hail & Wind Storms in Frederick, MD — Latest Dates and Sizes
Hail and wind activity within ~25 miles of Frederick, Maryland or recorded for its county: the last 12 months from NWS warnings, storm reports, and station measurements, plus official NOAA records back to 2010.
Latest hail and wind near Frederick
- Last reported hail (0.75 in.+, screening): August 27, 2026 — 1.00 in. reported 21.1 mi W of Frederick (Shepherdstown, West Virginia), NWS Local Storm Report.
- Last wind gust 45 mph+ (screening): August 6, 2026 — 75 mph measured at the Liberty - Raven Rock station (20.4 mi N of Frederick, Pennsylvania), ASOS weather station.
- 2026 so far: 2 hail days and 19 wind days within 25 miles (days with a storm report or station gust at the screening thresholds; warnings alone never count).
| Date | Largest reported hail | Strongest gust |
|---|---|---|
| August 27, 2026 | 1.00 in. reported (West Virginia) | — |
| August 6, 2026 | — | 75 mph measured (Pennsylvania) |
| July 28, 2026 | 2.00 in. reported (West Virginia) | — |
| June 11, 2026 | — | 52 mph measured |
| June 6, 2026 | — | 52 mph measured |
| May 13, 2026 | — | 51 mph measured |
| April 19, 2026 | — | 54 mph measured |
| April 5, 2026 | — | 52 mph measured |
| March 23, 2026 | — | 53 mph measured |
| March 17, 2026 | — | 58 mph measured |
Was your address hit on August 27, 2026? Check any address free with the Free Report Snapshot — a YES/NO estimate at the screening thresholds.
Frederick storm facts
- StormAuditor's analysis of NOAA and National Weather Service records found 116 wind and hail events, NWS warning products included, within 25 miles of Frederick, Maryland (including the parts of Pennsylvania, Virginia and West Virginia inside that circle) or recorded for Frederick County in the 12 months ending October 7, 2026 (82 wind, 34 hail).
- The strongest gust within 25 miles of Frederick in the last 12 months was 75 mph, measured at the Liberty - Raven Rock station (20.4 mi N of Frederick, Pennsylvania) on August 6, 2026 (ASOS weather station; storm reports and station gusts only, warnings excluded).
- The largest hail reported within 25 miles of Frederick in the last 12 months was 2.00 in., 22.6 mi W of Frederick (1 NE Shenandoah Junctio, West Virginia) on July 28, 2026 (NWS Local Storm Report).
- The busiest day by event count near Frederick was July 28, 2026, with 8 events.
- Frederick County alone recorded 93 of those wind and hail events (70 wind, 23 hail); the Maryland page ranks counties by events of every type, floods and Special Weather Statements included.
Frederick, Maryland storm history at a glance (last 12 months)
This free weather history for Frederick — home to about 90,000 residents — draws on StormAuditor's consolidated public record: 116 wind and hail events within 25 miles of Frederick (including the parts of Pennsylvania, Virginia and West Virginia inside that circle) or recorded for Frederick County in the trailing 12 months — 82 wind and 34 hail.
Events combine NWS warning products, observed Local Storm Reports, station measurements and official NCEI records in one event table. Because they include warnings, and wind covers thunderstorm and non-thunderstorm wind alike, they measure something different from the NCEI entry counts in the history section below; the two are not comparable year to year.
Busiest days near Frederick by event count
Ranked by the number of 12-month events, NWS warnings included, so a day with many warnings can outrank a day with larger hail.
- July 28, 2026 — 8 events incl. warnings · 3 wind · 5 hail
- August 27, 2026 — 7 events incl. warnings · 2 wind · 5 hail
- September 3, 2026 — 6 events incl. warnings · 2 wind · 4 hail
- September 2, 2026 — 6 events incl. warnings · 3 wind · 3 hail
- May 20, 2026 — 6 events incl. warnings · 5 wind · 1 hail
How these numbers are counted
The storm numbers on this page are counted in four different ways, plus the free address check. Each answers a different question with its own size cutoffs, area and time span, so compare numbers within one group, not across groups.
- Storm days (latest hail and wind): A day in the last 12 months when at least one report within 25 miles of Frederick showed hail 0.75 in. or larger or wind of 45 mph or more (StormAuditor screening thresholds). Reports are NWS storm reports from spotters, the public and officials, plus weather-station gusts, which count from 50 mph. A warning on its own never makes a storm day. The latest and largest hail, the latest and strongest gust, and the storm-day table all use this record. The 25-mile circle around Frederick reaches into Pennsylvania, Virginia and West Virginia. Values marked with another state's name come from there: they count for Frederick but not on the Maryland state page, which counts reports inside Maryland only.
- Storm-date pages (NWS severe): A storm-date page is published only when at least one report or station gust within 25 miles of a city met the National Weather Service severe criteria (hail 1.00 in. or larger, or wind 58 mph or more), at least two separate observations were logged, and the day ranks among the most significant. A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. Not every storm day gets a page; when one does, the page and the storm-day table show the same largest hail and strongest gust.
- Events (12-month counts): Events count NWS warnings, storm reports (wind 50 mph+, hail 0.75 in.+), station gusts (50 mph+) and NCEI entries within 25 miles of Frederick or recorded for Frederick County, tornado entries counted as wind. One event is one place on one day, counted separately for hail and for wind. A weather station or storm-report point counts once a day, at that day's highest reading, however many readings it filed; a place with hail and wind on the same day is two events. NWS warnings count once per county per day, and each NCEI entry once per place per day. A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. The same report arriving through another feed (SPC or NCEI) is one record. Events measure how busy the area was, not whether a storm hit: one storm can bring warnings and reports from many places, so the busiest days by event count can differ from the storm days.
- NOAA history (since 2010): The official NOAA storm record (NCEI Storm Events) within 25 miles of Frederick or in Frederick County from January 1, 2010 to the day before the 12-month window starts: hail 0.50 in.+, thunderstorm wind 40 mph+ and tornadoes. It is a separate, older record with its own "storm days" (days with any entry), so its counts are not compared with the 12-month numbers.
- Free Report Snapshot: A free YES/NO estimate for one address, from radar and wind analysis at the property rather than area reports, at the same screening thresholds: hail 0.75 in. or wind 45 mph.
Full method: Methodology and Data Sources.
Frederick hail and wind history in NOAA NCEI records, 2010–Oct. 2025
This section covers January 1, 2010 through October 6, 2025. Storms from October 7, 2025 on are in the 12-month summary above, so no date is counted in both.
Wind is the more common entry — 1,308 thunderstorm wind reports to 139 hail reports. In all: 1,486 NCEI Storm Events entries within 25 miles of Frederick or in Frederick County, spread over 296 storm days.
The largest hail in these records for this area was 2.50 in. (tennis-ball size), reported on May 15, 2018 in Frederick County. Hail of 2 inches or more appears in 3 different years of this record, the latest being 2023. Measured thunderstorm gusts topped out at 87 mph (Washington County, February 16, 2025). NCEI also lists 39 tornado entries for the area — one entry per county a tornado crossed.
Hail peaks in June (32% of all hail reports); thunderstorm wind peaks in July. December through February accounts for 7 storm days.
Storm days ranged from 13 in 2013 and 2015 to 27 in 2019. Across 2022–2024, the area averaged 19 storm days a year, matching the 15-year average of 19.
- Average: 19 storm days a year (2010–2024)
- May and June: 57% of all hail reports
- Most hail reports in one year: 19 in 2014
- Hail of 1 in. or larger reported in every full year, 2010–2024
| Year | Hail reports | Thunderstorm wind reports | Tornado entries | Storm days | Largest hail | Strongest measured gust |
|---|---|---|---|---|---|---|
| 2010 | 9 | 71 | 1 | 17 | 1.75 in. | 70 mph |
| 2011 | 10 | 81 | 9 | 21 | 1.25 in. | 63 mph |
| 2012 | 10 | 93 | 5 | 19 | 1.75 in. | 63 mph |
| 2013 | 6 | 39 | 1 | 13 | 1.50 in. | 63 mph |
| 2014 | 19 | 73 | 0 | 18 | 1.75 in. | 58 mph |
| 2015 | 5 | 65 | 1 | 13 | 1.50 in. | 64 mph |
| 2016 | 9 | 51 | 1 | 17 | 1.75 in. | 70 mph |
| 2017 | 5 | 90 | 1 | 16 | 1.00 in. | 68 mph |
| 2018 | 9 | 60 | 2 | 15 | 2.50 in. | — |
| 2019 | 13 | 139 | 2 | 27 | 2.00 in. | 67 mph |
| 2020 | 3 | 107 | 5 | 21 | 1.00 in. | 70 mph |
| 2021 | 3 | 117 | 3 | 25 | 1.00 in. | 66 mph |
| 2022 | 7 | 88 | 0 | 20 | 1.50 in. | 64 mph |
| 2023 | 15 | 98 | 1 | 17 | 2.00 in. | 81 mph |
| 2024 | 9 | 46 | 7 | 19 | 1.50 in. | 64 mph |
| 2025 through Oct. 6 | 7 | 90 | 0 | 18 | 1.50 in. | 87 mph |
Download this history: CSV · JSON at https://www.stormauditor.com/downloads/storm-history/md/frederick.json (free, open license, cite StormAuditor).
Source: NOAA NCEI Storm Events Database (thunderstorm wind, hail, and tornado entries; hail 0.50 in. or larger, wind 40 mph or more; wind converted from knots).
Frederick storm history questions, 2010–Oct. 2025
What is the largest hail reported near Frederick, 2010–Oct. 2025?
2.50 in., tennis-ball size, reported on May 15, 2018 in Frederick County, per NCEI. Other years with hail of 2 inches or more: 2019 and 2023.
What was Frederick's most active storm year, 2010–Oct. 2025?
2019, with 27 storm days (13 hail reports, 139 thunderstorm wind reports, 2 tornado entries). The 15-year average is 19 storm days.
How often does Frederick get hail?
NCEI's records average 8.8 hail reports a year here over 2010–2024, alongside 81 thunderstorm wind reports. Hail of 1 inch or larger was reported in every one of those years.
When is hail season near Frederick?
June has the most hail reports (44, 2010–Oct. 2025), followed by May (35) and August (20).
How strong were measured thunderstorm winds in Frederick, 2010–Oct. 2025?
87 mph, measured on February 16, 2025 in Washington County. Only gusts NCEI lists as measured count here; gusts measured on a date and county with a tornado entry, and entries of 120 knots or more (known entry errors), are left out.
Frederick hail map and wind map
Researching hail or wind in Frederick? The Hail Explorer and Wind Explorer map radar-derived hail swaths and peak-gust wind swaths across Maryland, including the Frederick metro: pick any storm date and see how estimated hail size and gust bands tracked through Frederick County. Both explorers are included with Pro+ and Organization plans.
County-level activity is on the Impact Heatmap (free with an account), and day-by-day history is on the Storm Calendar (Pro plans and higher).
Free Frederick weather report by address
Area maps show where storms tracked; an insurance claim or roof inspection turns on what happened at the property. Three ways to check one Frederick address:
- The Free Report Snapshot answers YES/NO instantly on estimated wind of 45 mph or more and hail of 0.75 in. or larger (screening thresholds) at the address.
- The free Address Lookup lists NWS warnings, storm reports and NOAA observations near the address — free Frederick wind history and free Frederick hail history.
- A complete Weather Report for $2.99 covers every qualifying storm date at one address over the last 2 years.
All values are estimates from public NOAA data under our published methodology (see Limitations).
For roofers, adjusters, and claim attorneys: the professional tools add statewide hail and wind swath maps, the Zone Canvas Tool, and Audit Reports with the evidence and arithmetic — see how roofing contractors and insurance claim attorneys use them.
Sources: NWS alerts (api.weather.gov) · NWS Local Storm Reports via the Iowa Environmental Mesonet · ASOS/AWOS station gusts via the Iowa Environmental Mesonet · NOAA NCEI Storm Events Database · every StormAuditor data source.
Free Frederick storm data download
The Frederick storm records for the last 12 months download free, free to reuse under the data license: download CSV · JSON at https://www.stormauditor.com/downloads/storm-data/md/frederick.json.
- Coverage: every wind and hail record within about 25 miles of Frederick (including the parts of Pennsylvania, Virginia and West Virginia inside that circle) or recorded for Frederick County, with dates, counties, event types, measured gusts and hail sizes.
- Rows: each source record before consolidation, including every NWS warning product and smaller storm reports, so the row count differs from the event counts above. The file holds Maryland records only; the counts above also include the neighboring-state records inside the 25-mile circle.
- Statewide files are on the Maryland storm data page.
Nearby city storm pages:
- Gaithersburg hail & wind history
- Baltimore hail & wind history
- Lancaster, PA hail & wind history
- Newark, DE hail & wind history
- Maryland statewide storm data
Guides for reading this data
Cite or link to this data — free
Free to quote, summarize, reuse, and link — for bloggers, journalists, researchers, contractors, and AI writing tools. No permission or credit required. A ready-made citation and link are below if they help. Terms: StormAuditor data & content license.
Citation: StormAuditor. "Frederick, MD Hail & Wind Storm History." Updated September 4, 2026. https://www.stormauditor.com/storm-data/md/frederick
HTML link: <a href="https://www.stormauditor.com/storm-data/md/frederick">Frederick, MD Hail & Wind Storm History — StormAuditor</a>
About this page: built by Storm Auditor LLC from public NOAA/NWS records — deduplicated warnings, storm reports, station measurements, and official records on a rolling 12-month window, under the published methodology. See the StormAuditor Editorial Team for how content is produced.
Data last refreshed October 7, 2026. Event counts cover wind and hail (warning products, and storm reports from 50 mph or 0.75 in.); flood activity and Special Weather Statements are not counted here.