SkyGround

County-level natural hazard risk data for researchers

All counties

Lower Connecticut River Valley Planning Region, CT

Population: 174,152 · FIPS code: 09130

Relatively Moderate Overall risk index: 83.8 / 100 (percentile among US counties)

Hazard breakdown

Hazard NRI rating NRI score NOAA events
(2016–2025)
Wildfire Very Low 43.6 0
Inland Flooding Relatively Moderate 90.3 0
Coastal Flooding Relatively Moderate 79.6 0
Earthquake Relatively Low 74.8 —
Heat Wave Relatively Low 42.2 0
Tornado Relatively Low 43.3 0

NOAA event counts are recorded county-level storm events from the NOAA Storm Events Database for 2016–2025. NOAA does not track earthquakes, and some hazard reports are filed by NWS forecast zone rather than county, so these counts are a partial, not exhaustive, record of recent activity. See the methodology page for details.

Federal disaster declaration history

No federal disaster declarations on record for Lower Connecticut River Valley Planning Region.

Geomagnetic latitude

Lower Connecticut River Valley Planning Region sits at approximately 50.7°N geomagnetic latitude. Aurora can become visible on the horizon here during geomagnetic storms reaching roughly Kp 8 or higher (G4 – Severe on NOAA's scale). See current space weather conditions for live geomagnetic activity and aurora forecasts.

Geomagnetic latitude is an approximate dipole-model calculation based on this county's geographic centroid (US Census Bureau). See the methodology page for details and limitations.

What these ratings mean

Each score reflects how Lower Connecticut River Valley Planning Region's expected losses from that hazard compare to every other county in the country, based on FEMA's National Risk Index. A "Very High" rating means this county is among the most exposed in the US for that hazard relative to other counties — it does not mean a disaster is likely this year. See the methodology page for how these scores are calculated.