We've had some extremely warm weather over the past week and a half, some of it accompanied by sunshine. Today we're headed toward a sunny 72 F. (Update: not going to get that high).
I've noticed an obvious uptick in positive mood among patients, with many attributing it to the recent weather.
Graph Below: Chicago's daily February average low (blue) and high (red) temperature with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile). Previous high temperature for this date is 68F. Highest February temperature since 1873 is 75F.