Which explains why it's just above freezing and pissing with rain.
Yesterday the temperature dropped from 15°C to 5°C in about 90 minutes as a cold front swept in from the north. Today we're living with the result.
Oddly, though, the current temperature (3°C) isn't that far from the normal March 1st temperature (4°C). So perhaps we shouldn't complain. But that taste of spring we got earlier this week made us all anxious for the real thing.
It's Chicago. The weather will change in a day or two.