Category Archives: Climate Monitoring

When Is Fall? Astronomical, Meteorological, Climatological?

No doubt today (September 22) will be announced as the “first day of fall” because of the fall or autumnal equinox. However, that concept refers to the date when we get equal amounts of daylight and dark.  I don’t think … Continue reading

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NWS Outlook – Wet October, Warmer Fall for Illinois

There is an increased chance of above-average precipitation for the northern half of Illinois in October and an increased chance of above-average temperatures in October-November-December for all of Illinois, according to the latest outlooks from the NOAA Climate Prediction Center. … Continue reading

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Cool, Wet Start to September in Illinois

No surprise – the first half of September was very wet across much of Illinois. And it is raining across central Illinois as I write this.  Temperatures for the first half of September are 3 to 4 degrees below average … Continue reading

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Frost in Illinois – Not Quite Yet

While cold air moved in behind the low-pressure system that passed through the Midwest this week, it looks like Illinois will likely dodge the freezing temperatures for now. But someday they will come. Here are the median dates for when … Continue reading

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Heavy Rains in Western and Central Illinois

Heavy rains have fallen in western and central Illinois over the last three days. Here is the overall picture showing the heavy rains in southern Iowa and northern Missouri as well. Areas in yellow, orange, and red experienced 2.5 to … Continue reading

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Year to Date – Cool and Wet in Illinois

It is probably not shocking news to find out that the first 8 months of 2014 have been both cooler and wetter than average for Illinois. The statewide average temperature for January-August was 50.8 degrees, 3.5 degrees below the 1981-2010 average … Continue reading

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Summer Weather Gives Way to Fall

If you look at the start to September, temperatures have run 3 degrees above average. And yesterday and today have been the hottest yet with temperatures the 80s and 90s across much of state. But that is about to change … Continue reading

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