So far this March we have seen 2.6" of snow at O'Hare.
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For the month of March we average 5.6" of snow. So far, a little behind the average.
When you look at the climatology....
March 17 - is average date of last 1" snowfall
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March 31 - is average date of last .1" snowfall otherwise defined as last measurable snowfall
But we have obviously seen snow in April and May.
In April, we average 1.2" of snow. And in May we average a trace of snow, meaning there are reports of flurries.