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Colorado Severe Weather Hazard Profile

Hazard Data · Model Version 2.5

Overview

Colorado's Front Range is part of the US hail corridor, with the Denver-Colorado Springs metro area experiencing some of the highest hail frequencies in the nation. NOAA SPC data and IBHS research show Colorado consistently ranks in the top 5 states for hail-related insured losses. Severe thunderstorm winds and occasional tornadoes occur east of the Continental Divide.

In the Historical Record

7
federal disaster declarations (1965–2008)
FEMA OpenFEMA Disaster Declarations
12,782
Hail events recorded
NOAA NCEI Storm Events, 1996–present

Counted from the records this platform holds. A figure is shown only where the underlying dataset could be read.

County by County in Colorado

What federal records show has happened in each county: storms, disaster declarations and flood insurance claims. The counties below have the longest NOAA storm records in Colorado.

All Colorado counties

Notable Historical Events

12017 Denver hailstorm — $2.3B insured losses, most costly CO hail event
22023 Denver metro hail — significant roof and vehicle damage
32008 Windsor EF3 tornado — one of the strongest CO tornadoes on record

Hazard Scoring Approach

Calchis computes a Calchis Hazard Score (0–10) for severe weather hazard at any US address. The score is composed of weighted sub-components derived from federal data sources and published research. All score components are transparent and returned in API responses.

These are hazard scores — physical intensity likelihood only. They do not include property exposure or vulnerability data. We never call a hazard score a risk score. See the full methodology for scoring details.

Analyze Your Address

Enter any Colorado address to see location-specific severe weather hazard scoring with full methodology transparency.

Open Live Map — Colorado

Data Sources

NOAA Storm Prediction Centerwww.spc.noaa.gov
NOAA Storm Events Databasewww.ncdc.noaa.gov
IBHS Hail Researchibhs.org

Related

Monitoring severe weather exposure in Colorado?

This page is a state-level profile. Calchis scores individual addresses, tracks live severe weather events against your own locations, and alerts you when one approaches them.

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Calchis Hazard Score — derived from federal and academic sources listed above. Property exposure data not included. Not a substitute for professional actuarial assessment. Decision-support intelligence — not a primary alerting or dispatch system. Verify against official sources.