2024-25 is the first below average winter at PHL using 1981-2010 since 2014-15.
Below average winters and summers since winter 2009-10 (using 1981-2010 averages):
Winters: 2009-10, 2010-11, 2013-14, 2014-15, 2024-25
Summers: 2014 (by 0.2F), 2023 (by 0.1F, but the JAS average is above the summer/JJA average)