As climatological winter began, maps issued by the National Oceanic and Atmospheric Administration’s Climate Prediction Center were revealing. When it comes to average temperature for January, Indiana has an equal chance to be above, below or normal.
See what “normal” January temperatures would be in the chart provided by Ken Scheeringa, Indiana State Climate Office. Realize that even if the temperature trend turns out to be above or below normal, the average temperature may only vary by a degree, or at most a few degrees, from the trend, he notes. Trend numbers are based on long-term data collected at official weather stations around the state.TEMPERATURE HOLDS KEY: Odds favor slightly more precipitation than normal in Indiana this winter. Whether it’s snow or rain will depend on temperature trends, which are less certain right now.
The “equal chances” temperature prediction for January in Indiana is sandwiched between two more definite predictions for other parts of the U.S., Scheeringa says. If you go north into the Great Lakes states this winter, you can expect a cool trend. If you travel almost anywhere south in the U.S. this winter, it’s likely to be warmer than normal, he observes. This is the continuation of a trend that has been unfolding over the past few months.
The precipitation picture across the U.S. also looks like a sandwich, with the chance for more moisture than normal falling in the Northern U.S., and the odds favoring continued drier-than-normal conditions across much of the South and Southeast. That’s not good news for those who have been struggling with wildfires over the past several weeks.
When it comes to precipitation, Indiana is in the lower part of the upper half of the bun, continuing the sandwich analogy. The odds for more precipitation than normal swing down and include most of Indiana. However, that prediction is far from a done deal, Scheeringa says. The CPC puts the odds for higher-than-normal precipitation at 33% to 40% in Indiana.
Whether parts of Indiana see a normal, soggy or white winter will depend on how those trends play out, he concludes.