*ENSO Strenth based off Oceanic-Nino Index*

Colors: Red= Warm or Postiive Phase, Blue= Cold or Negative Phase, Green= Neutral Phase

Index Values

Philadelphia, PA(KPHL)
Month Snowfall Total Climate Pattern Monthly Average
NAO PNA AO PDO ENSO
SOI Nino 3.4 SSTA
February 2010 51.5" -1.98 0.58 -4.266 0.82 -14.5 1.45
January 1996 33.8" -0.12 -0.02 -1.200 0.59 8.4 -0.73
February 2003 29.6" 0.62 0.73 0.128 1.75 -7.4 0.89
February 1979 27.6" -0.67 -1.82 -0.697 -1.33 6.7 -0.13
February 1983 26.1" -0.53 1.30 -1.806 1.14 -33.3 2.01
January 2014 25.9" 0.29 0.97 -0.969 0.30 12.2 -0.64
January 2011 25.2" -0.88 1.29 -1.683 -0.92 19.9 -1.44
December 2009 24.1" -1.93 0.34 -3.413 0.08 -7.0 1.94
January 1978 23.4" 0.66 0.61 -0.347 0.34 -3.0 0.77
February 2014 21.3" 1.34 -0.95 0.044 0.38 -1.3 -0.77




Washington, DC(KDCA)
Season Snowfall total Climate Pattern Monthly Average
NAO PNA AO PDO EPO ENSO
SOI Nino 3.4 SSTA
February 2010 32.1" -1.98 0.58 -4.266 0.82 0.44 -14.5 1.45
February 1979 30.6" -0.67 -1.82 -0.697 -1.33 -0.86 6.7 -0.13
February 2003 28.7" 0.62 0.73 0.128 1.75 -1.13 -7.4 0.89
January 1996 23.8" -0.12 -0.02 -1.200 0.59 0.04 8.4 -0.73
January 1966 21.3" -1.74 0.39 -3.232 -0.82 -0.05 -12.0 1.19
February 1983 21.0" -0.53 1.30 -1.806 1.14 0.46 -33.3 2.01
January 1987 20.8" -1.15 1.00 -1.148 1.88 0.47 -6.3 1.27
February 1967 19.0" 0.19 0.07 1.180 -0.18 1.23 12.9 -0.39
February 1961 18.0" 0.45 0.35 0.621 0.43 1.88 6.3 -0.13
February 1958 17.2 -1.06 0.49 -2.228 0.62 -0.59 -6.9 1.68