Lake-Effect Snow in the United States

How dangerous are Lake-Effect Snow events in the U.S.?

The loss ranking is the stronger warning against reading frequency alone. Lake-Effect Snow is #31 of 54 by event count but rises to #25 for combined property and crop damage. Its losses make up <0.1% of the catalog total, while its fatalities rank #33 and represent 0.1% of recorded deaths. Fewer events can still produce an outsized financial record.

Year-over-year trends reveal the event's volatility. The peak year on record was 2016, logging 251 events and $9.8M in property damage in a single calendar year. The most recent year in the dataset is 2025 with 163 events recorded. Across the full 11-year window, annual event counts reflect ordinary seasonal variability more than any clear multi-year trend.

Per event, this hazard is far more dangerous than its frequency suggests. It ranks #31 by how often it is recorded among the 44 hazard types with at least 100 events, but #26 by fatalities per event, at 8.8 deaths per 1,000 recorded events. Recorded damage averages $74.5K per event. A reader scanning total counts would underestimate the risk of encountering one.

The geographic footprint is uneven across the country. The three states absorbing the largest share of events are New York (669 events, 3 fatalities), Michigan (154 events, 0 fatalities), Pennsylvania (143 events, 0 fatalities), largely a function of local terrain and settlement patterns rather than any single cause. At the other end, states such as Illinois, Minnesota, California report far fewer events, a sign of lower exposure, though absence of a recorded event is not proof of zero risk.

Recorded events are numerous relative to a more limited fatality total in this part of the catalog. NOAA reports 1,136 events, 10 fatalities, and 21 injuries from 2015 through 2025. PlainHazard calls 5-19 cumulative fatalities a moderate human-toll band. The label organizes this dataset and should not be read as an agency safety classification.

NOAA entries are reports filed by local National Weather Service offices. Counts therefore reflect both observed weather and reporting practice; they do not measure unreported events, household exposure, or the probability of a future event at one address.