Snow Depth Comparison Now vs Last Year
The Twin Cities has only seen 5.3" of snow so far this season with only a trace to a light coating of snow on the ground across much of the state. Last year at this time, the Twin Cities had already had already seen 33.3" of snow with 6" of snow on the ground. On the other hand, Duluth had already seen nearly 63" of snow with 27" of snow on the ground. What a difference!
January 2nd Was Perihelion
Earth reached its closest distance to the sun yesterday, a phenomenon known as perihelion. During perihelion, Earth is approximately 3.1 million miles closer to the sun than it will be at aphelion on July 5. It's important to note that Earth's orbit around the sun is not perfectly circular, resulting in an occurrence of perihelion and aphelion once per year.
Accumulated Winter Season Severity Index (AWSSI)
"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 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."
It's probably no surprise, but most locations around the Midwest and Great Lakes have had a "Mild" winter so far. Again, we're still waiting for the other boot to drop, but being in an El Nino setup, a winter like last year is not really in the cards. The Midwest will likely see an overall warmer and less snowy winter.
"Mild" Winter So Far in for the Twin Cities
Here's a look at the Accumulated Winter Season Severity Index (AWSSI) for Minneapolis, MN so far this winter season. With a lack of cold temps and snow, it may be no surprise that we are currently sitting under a "Mild" winter rating so far.
Seasonal Snowfall So Far
The Twin Cities has only seen ~5" of snow this season, which is nearly -14.0" below normal snowfall, which is the 24th least snowy starts to any season on record. With only ~8" of snow in Duluth, they are more than 2 feet below normal snowfall and good enough for the 8th least snowy starts to any season on record. Marquette, MI is nearly 54" below normal snowfall and currently sitting at the 4th least snowy start to any season on record.
Seasonal Snowfall Departure From Average
Looking around the region, no climate site has a surplus this season. The biggest deficits are around the Great Lakes, where we typically get lake effect snow, but with a lack of Arctic air, we haven't seen much in the way of heavy snow yet this season.