Winter seasons have significant societal impacts across all sectors ranging from direct human health and mortality to commerce, transportation, and education. The question “How severe was this winter?” does not have a simple answer. At the very least, the severity of a winter is related to the intensity and persistence of cold weather, the frequency and amount of snow, and the amount and persistence of snow on the ground. The Accumulated Winter Season Severity Index (AWSSI) was developed to objectively quantify and describe the relative severity of the winter season.

Current Season

AWSSI End of Season 2016-2017    Average AWSSI 1980-2014

(+/-)  About the AWSSI

(+/-)  Manually updated PDFs of detailed scoring summaries and charts for
        selected locations

These scoring summaries and charts are provided so that the user, through these examples, can see how the AWSSI is scored for the locations provided.

Anchorage, AK Blue Hill, MA Champaign-Urbana, IL See annotated scoring page sample
Go to annotated scoring page
Chicago, IL Denver, CO Detroit, MI
Minneapolis, MN New York City, NY Omaha, NE
    Washington, DC