The average temperatures for the meteological spring -- defined as as the March 1-through-May 31 period -- was 53.6 in in Philadelphia, just a shade below the 30-year "normal" and sightly above the long-term averages.
The recent heat-wave notwithstanidng, it might have felt cooler than that overall.
That would would be understandable.The region has experienced an extraordinary run of warm springs.
Last year was the warmest in the 140-year period of record, with a three-month average temperature of 58.9 degrees; 2010 was No. 2, 58.0, and 2011, No. 6, 56.4.