If you've watched our weathercasts lately, you know all about the roller-coaster ride we've experienced with our day to day high temperatures. Six times this month, the high temperature has changed +/- 10 degrees or more from one day to the next. The greatest one-day high temperature change was earlier this week when the temperature fell 22 degrees between Monday and Tuesday.
But then I began to wonder: how often has this happened in the past? Thanks to the
Wichita National Weather Service's homepage, I was able to look up all of the data for the month of January between 1997 and 2011. While 15 years isn't a very large data set, it does show that these fluctuations have happened somewhat regularly. During that aforementioned time span, the average number of times the high temperature experienced a day-to-day change of +/- 10 degrees or more was nearly 12! (11.9 times to be exact). That's over a third of the month! The least number times we saw this swing in temperatures was 3 in 2001; the most: 18 in 2003.
If you increase the daily high temperature change to +/- 15 degrees, it does so on average 5 times each January. The greatest number of times this happened in the last 15 years: 11 in 2009. The least: once in 2001. So far in 2012, we've experienced this only once too: that 22 degree drop from the 16th and 17th.
What was the biggest change in our high temperature from one day to the next over the past 15 January's? On January 11, 2007 the high temperature was 70. The next day was just 29!
I'm not drawing any conclusions from the data set. But at least over the last 15 years in the month of January, the see-saw pattern is more common than one might think.