Dallas-Fort Worth ENSO Table
Below is a table showing ENSO's influence on DFW snowfall. El Nino increases snow chances for DFW, while La Nina & ENSO Neutral phases result in decreased chances for snowfall. DFW's best (snowiest) winters occurred when El Nino was weak or moderate. DFW's worst (least snowy) winters occurred when La Nina was moderate or strong. The jet stream is displaced north & more variable during La Nina, so chances of occasional cold snaps are higher, creating windows of opportunity for wintry precipitation, but it is typically difficult to get the cold and moisture simultaneously.
Dataset in the graph below is from 1950-2024. The section called, "Mixed Phase of La Nina" denotes a winter season where La Nina went from strong to weak.
Dataset in the graph below is from 1950-2024. The section called, "Mixed Phase of La Nina" denotes a winter season where La Nina went from strong to weak.