Following a winter of widely-varying conditions, likely in part due to the influence of the major El Niño event that has been underway since last fall, it is useful to look back at past spring weather in years that, like this year, experienced strong El Niños. While certainly not providing a definitive forecast for what we might see over the next several months, this exercise will provide some insights into what might be seen. Here, much as we have done for summer, fall, and winter we will examine the seven strongest El Niño events since 1950.
Looking first at temperature, March was warmer than average in five of the seven years, while for April and May, temperatures tended to be below to well-below average. In fact, only two of the 14 Aprils and Mays averaged more than a half-degree above average, while nine averaged a degree or more below average.