Delaware Storm History: Recent Major Storm Days

Published 2026-07-17 · Updated 2026-07-17

Delaware experiences a variety of severe weather events, including thunderstorms with damaging winds and large hail. Understanding the precise dates and impacts of these storms is crucial for property owners, contractors, and insurers.

Delaware Storm History: Recent Major Storm Days

Delaware, situated along the Eastern Seaboard, is susceptible to severe weather, ranging from summer thunderstorms to coastal nor'easters. Accurately pinpointing Delaware storm days where significant hail or damaging winds occurred is essential for any property owner, contractor, or insurance professional involved in date-of-loss research. StormAuditor provides detailed historical weather insights, helping you understand the conditions that may have affected a specific property on any given day.

What Constitutes a Major Storm Day in Delaware?

According to the National Weather Service (NWS), a severe thunderstorm is defined by hail 1.00 inch (quarter-sized) or larger, wind gusts of 58 mph (50 knots) or greater, or the presence of a tornado. 'Significant severe' events escalate to hail 2.00 inches (hen egg-sized) or larger, or wind gusts of 75 mph or greater. For residential properties, hail impacts of 1.00"-1.25" are typically where asphalt shingles begin to show functional damage, while wind gusts exceeding 75-85 mph can lead to widespread shingle blow-off.

Recent Notable Storm Days in Delaware

StormAuditor tracks severe weather events across Delaware, consolidating data from various sources to provide a clear picture of past conditions. Below are some recent Delaware storm days that featured notable wind activity:

  • July 5, 2026 — 1 S Odessa (New Castle County) — 64.0 mph thunderstorm wind gust
  • May 27, 2026 — 1 N Highland Acres (Kent County) — 50.0 mph thunderstorm wind gust
  • June 6, 2026 — 1 NE Midvale (Kent County) — 48.0 mph thunderstorm wind gust

These dates represent instances of reported severe weather impacts, indicating days when properties in various Delaware locations may have been affected by strong winds or associated damage. Hail reports for Delaware in our recent data are sparse, but hail can and does occur. For a comprehensive list of all historical storm events, including hail, wind, and tornado reports, you can explore StormAuditor's tools.

How StormAuditor Measures Past Weather Events

StormAuditor utilizes a robust methodology to provide accurate historical weather estimates:

  • Hail: Our SAHE-2 (Storm Auditor Hail Estimate v2) system primarily uses radar-derived MESH (Maximum Estimated Sizes of Hail) data from MRMS swaths, complemented by human-observed SPC storm reports and NWS severe thunderstorm warnings. This allows us to estimate the maximum hail size that likely occurred at a specific location.
  • Wind: Our SAWE-2.9 (Storm Auditor Wind Estimate v2.9) employs a sophisticated objective analysis that integrates ASOS/AWOS station observations, measured National Weather Service (NWS) Local Storm Reports (LSRs), and background wind fields. This creates a detailed, station-consistent wind estimate for a given area. We emphasize that only measured wind values from stations or LSRs with measured qualifiers are used in our analysis; estimated gust LSRs are never used as values.

These methodologies ensure that StormAuditor's reports are anchored in credible data from sources like NOAA, NWS, SPC, IEM, and Visual Crossing Weather API. Our goal is to provide reliable Delaware storm data for your research needs.

How to Research a Date of Loss in Delaware

If you need to determine the weather conditions on a specific date at a particular address in Delaware, StormAuditor offers powerful tools:

1. Address Lookup: Use our /address-lookup tool to generate a property-level historical weather report showing specific hail, wind, and NWS warning data for your location.

2. Date of Loss Research: Our dedicated /date-of-loss-weather-research workflow guides you through identifying severe weather events for a given timeframe and location.

3. General Weather History: Explore our /weather-on-this-date tool to get an overview of meteorological conditions on any historical date for a specified region.

These tools help you effectively conduct date-of-loss research for any property across Delaware.

Practical Guidance for Delaware Storm Days

For homeowners, contractors, adjusters, and attorneys, accurate historical weather data is paramount. Understanding the conditions during a Delaware storm day helps in assessing potential property damage, substantiating claims, or planning repairs. While StormAuditor provides comprehensive weather data, it's important to remember that our estimates are for weather conditions, not damage causation. Always consult qualified inspectors and engineers for specific damage assessments.

Limitations

While StormAuditor leverages extensive data, it's important to understand the inherent limitations. Radar-derived hail estimates (MESH) can sometimes under-estimate wet hail or over-estimate in areas of very high reflectivity. Similarly, station-based wind observations, while accurate at their location, may not capture localized microbursts that occur between stations, meaning peak gusts could exceed reported values in specific, small areas. NWS warning polygons indicate an area and time window under a warning; a property inside a polygon was under a warning but did not necessarily experience the peak conditions. StormAuditor provides estimates of weather conditions, not measurements, and does not provide legal, insurance, or engineering advice. We never claim to 'prove' damage was caused by an event; rather, we provide the weather context for qualified professionals to evaluate.

Related StormAuditor Tools

FAQ

When was the last major wind storm in Delaware?

Based on recent data, July 5, 2026, saw a severe thunderstorm wind gust of 64.0 mph reported near Odessa, Delaware. Other days also featured significant wind damage reports, indicating strong straight-line winds.

How do I find storm history for my Delaware address?

You can use StormAuditor's /address-lookup tool by entering your specific Delaware address. This will generate a detailed report of historical hail, wind, and NWS warning data for that location.

What size hail is considered severe in Delaware?

In Delaware, as nationwide, the NWS considers hail 1.00 inch (quarter-sized) or larger as severe. However, hail 1.75 inches (golf ball size) and larger frequently causes window and skylight breakage, while even 1.00 inch hail can damage asphalt shingles.

Can StormAuditor tell me if my roof was damaged by a storm?

StormAuditor can provide comprehensive historical weather data, including estimated hail sizes and wind gusts, for your specific property on a given date. However, we do not assess damage. You should always consult a qualified roof inspector or engineer to determine if your roof sustained damage.

What are typical wind speeds that cause asphalt shingle damage?

Asphalt shingles often begin to show functional damage, such as tab creasing and lifting, with wind gusts between 55-70 mph. Widespread blow-off for older 3-tab shingles typically occurs above 75-85 mph, and for newer architectural shingles, above 90-100 mph.

Does StormAuditor cover all types of storms?

StormAuditor focuses on historical severe weather events, specifically hail, wind, and tornadoes, as defined by NWS criteria. This includes thunderstorm wind gusts, non-thunderstorm wind events, and the presence of hail or tornadoes. For specific details on our coverage, please visit our /data-sources page.