*Season goes from December to March*
*ENSO Strenth based off Oceanic-Nino Index*
Colors: Red= Warm or Postiive Phase, Blue= Cold or Negative Phase, Green= Neutral Phase
| Philadelphia, PA | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Snowfall | Climate Pattern Season Average | |||||||||
| NAO | PNA | AO | PDO | EPO | ENSO | ||||||
| SOI | Nino 3.4 | Strength | |||||||||
| 2009/2010 | 78.7" | -1.04 | 1.05 | -2.674 | 0.54 | -0.37 | -10.6 | 1.48 | Moderate El Nino | ||
| 2013/2014 | 68.0" | 0.85 | -0.26 | 0.439 | 0.31 | -0.72 | -0.4 | -0.65 | Weak La Nina | ||
| 1995/1996 | 61.2" | -0.53 | 0.03 | -1.168 | 0.63 | -0.69 | 2.6 | -0.90 | Weak La Nina | ||
| 1977/1978 | 54.7" | -0.46 | 0.38 | -0.775 | 0.61 | -0.72 | -11.0 | -0.26 | Neutral | ||
| 1960/1961 | 49.1" | 0.37 | 0.95 | -0.222 | 0.47 | 0.47 | -2.6 | -0.26 | Neutral | ||
| 2002/2003 | 44.5" | 0.04 | 0.89 | -0.251 | 1.86 | -0.36 | -6.7 | 1.16 | Moderate El Nino | ||
| 1966/1967 | 44.2" | 0.38 | -0.56 | 0.293 | -0.48 | 0.39 | 7.8 | -0.48 | Neutral | ||
| 2010/2011 | 44.0" | -0.36 | -0.35 | -0.329 | -0.91 | 0.07 | 22.7 | -1.51 | Moderate La Nina | ||
| 1957/1958 | 41.8" | -0.86 | 0.39 | -1.340 | 0.14 | 0.04 | -7.2 | 0.56 | Weak El Nino | ||
| 1978/1979 | 37.7" | -0.71 | -0.71 | -1.181 | -0.51 | -0.59 | -0.3 | -0.21 | Neutral | ||