We start off with last winter's temperatures vs normal across North America. Little sign of any cold although early February showed some signs in the central US.
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| Winter 2019-2020 (Dec-Jan-Feb) North America |
US temperature anomalies (standarized) show a similar story month to month
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| Winter 2019-2020 (Dec-Jan-Feb) US Climate Divisions |
Here are the previous 5 winters (Dec-Jan-Feb) for comparison.
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| WINTER 2018-19 |
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| WINTER 2017-18 |
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| WINTER 2016-17 |
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| WINTER 2015-16 |
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| WINTER 2014-15 |
As for the midwest and Ohio Valley, last winter's temperatures ranked in the top 15 warmest ever across Ohio, West Virginia, Kentucky and Pennsylvania with top 20-30 warmest further west.
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| WINTER 2019-2020 LOCAL TEMPERATURE RANKS |
Here are the previous 5 winters (Dec-Jan-Feb) for comparison. Numbers indicate local climate division rank (1 is warmest. 128 is coldest)
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| WINTER 2018-2019 LOCAL TEMPERATURE RANKS |
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| WINTER 2017-2018 LOCAL TEMPERATURE RANKS |
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| WINTER 2016-2017 LOCAL TEMPERATURE RANKS |
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| WINTER 2015-2016 LOCAL TEMPERATURE RANKS |
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| WINTER 2014-2015 LOCAL TEMPERATURE RANKS |
Looking across Ohio, the overall temperatures are similar. There are 10 climate divisions across the state. Divisions 2,3,6 and 7 cover northern Ohio.
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| Winter Temperatures vs Normal - Ohio Division 2 |
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| Winter Temperatures vs Normal - Ohio Division 3 |
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| Winter Temperatures vs Normal - Ohio Division 6 |
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| Winter Temperatures vs Normal - Division 7 |
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| Winter Temperatures vs normal - All Ohio Divisions |
Here are the top 20 warmest and coldest winters in northern Ohio (Hopkins Airport 1938 to Present/Downtown Cleveland 1871 to 1938)
As for northern Ohio specifically, last winter was very similar to the winter of 2016-17, 2011-12 and 2001-02.
Here are the winter temperatures vs normal (using moving 10 year averages) since 1960
As I have written many times, most of us don't remember the average of the days we typically remember the extremes. Here are the number of days each winter we reached a certain temperature threshold since 2000.
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Number of Days Above 40 Degrees (Dec-Jan-Feb) out of 90 days |
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| Number of Days Above 32 Degrees (Dec-Jan-Feb) out of 90 days |
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| Number of Days With High Temperatures BELOW 20 Degrees (Dec-Jan-Feb) out of 90 days |
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| Number of Nights BELOW ZERO (Dec-Jan-Feb) out of 90 days |
Expanding out the winter list further in time, here are the number of days above 40 degrees since 1940
...Number of night below zero since 1940
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| Total Number of Winter Days Above Normal Last 20 Years |
Most Days Above Normal - Top 15 Winters:
1932 73
1890 68
1882 64
1880 63
1933 62
2002 62
1953 61
1949 60
1992 60
2012 59
2020 59
1954 58
1999 58
2016 58
Here is a graph highlighting the hours the WIND CHILL dropped below a specific threshold over the last 15 winters. I added a few other notable winter of the past for comparison. Last winter is on the left side of the image below.
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| CUMULATIVE WIND CHILL HOURS LAST 20 YEARS |
...Next post we will cover snowfall history and Lake Erie Ice Cover history
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