This is the first day of the meteorological winter, and actual winter weather is due to settle in once this pesky rain gets out of the way.
Looking back, the last three meteorological seasons have been quite remarkably warm.
A footnote: For bookkeeping purposes, the meteorological community divides the seasons into tidy three-month increments. Thus the meteorological spring begins March 1; summer, June 1, and fall, Sept. 1.
Officially, each of the last nine months finished above normal in Philadelphia, and taken together, this was by far the warmest March 1-Nov. 30 period in 137 years of records.