Tim's Weather World: Extreme shift in extremes

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What a difference a year makes!   2012 was the hottest year on record for the contiguous United States.  Record highs outpaced record lows by a ratio of 14 to 1 in 2012.  So far this year, record lows have outpaced record highs by 1.3 to 1.  We have also more than doubled the amount of record snowfall reports year to date this year compared to last year.    There have been 5687 reports of record snowfall so far this year compared to 2574 through this point last year.  Those are the numbers at a national level.

 

We have seen the same remarkable reversal after breaking down some numbers locally.

 

58% of days this year have been below average.  So far this year the number of days with below average temperatures has outpaced days at or above average by about 1.4 to 1.  77% of days to date last year were at or above average and the number of days at or above average outpaced the number of days below average by a ratio of 3.3 to 1.

 

What a difference a lake makes!

 

While most of us will be milder than average through Thursday, a wind off the lake the next few days will keep it considerably cooler lakeside.

 

There was more than a 25° spread between the coolest spots lakeside yesterday and the warmest spots inland.  Here are some of the warmest and coolest highs Sunday recorded on our WeatherBug network:

 

  • 74° DeKalb
  • 75° Morris
  • 76° Kankakee
  • 77° Streator

 

Lakeside locations:

 

  • 51° Wilmette
  • 54° Highland Park
  • 56° Winnetka
  • 57° Kenosha

We will see a similar spread the next few days with 70s away from the lake and 50s lakeside.

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