Twin Cities Normals: 1991-2020 Compared to 1981-2010

A climate normal is defined as the average of a variable over a continuous three-decade period. At the end of each decade, a new 30-year average is calculated. The statistic is a measure of the central tendency of the variable. Minnesota's highly variable climate leads to large year-to-year swings above and below this benchmark value.

The National Centers of Environmental Information (NCEI) released the 1991-2020 normals on May 4, 2021. NCEI has Quick Access to the 1991-2020 Normals. For example: Here's 1991-2020 Normal information for the Twin Cities.

 

Below are comparisons from the 1981-2010 Normal to the 1991-2020 Normal for the Twin Cities

Twin Cities
Comparing Temperatures (in degrees F) from 1981-2010 to 1991-2020
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Month 	    Jan	  Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec   Annual
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Temp 81-10  15.6  20.8  32.8  47.5  59.1  68.8  73.8  71.2  62.0  48.9  33.7  19.7  46.3
Temp 91-20  16.2  20.6  33.3  47.1  59.5  69.7  74.3  71.8  63.5  49.5  34.8  22.0  46.9 
Change      +1.4  -0.2  +0.5  -0.4  +0.4  +0.9  +0.5  +0.6  +1.5  +0.6  +1.1  +2.3  +0.6
Comparing Precipitation (in inches) from 1981-2010 to 1991-2020
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Month 	     Jan    Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec   Annual
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Prec 81-10   0.90   0.77  1.89  2.66  3.36  4.25  4.04  4.30  3.08  2.43  1.77  1.16  30.61
Prec 91-20   0.89   0.87  1.68  2.91  3.91  4.58  4.06  4.34  3.02  2.58  1.61  1.17  31.62 
Change      -0.01  +0.10 -0.21 +0.25 +0.55 +0.23 +0.02 +0.04 -0.06 +0.15 -0.16 +0.01  +1.01
Change %      -1%   +13%  -11%   +9%  +16%  +5%   +<1%   +1%   -2%   +6%  -9%   +<1%  +3.3%
Comparing Snowfall (in inches) from 1981-2010 to 1991-2020
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Month 	    Jan	  Feb   Mar    Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec   Annual
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Snow 81-90  12.2  7.7   10.3   2.4   0     0     0     0     0     0.6   9.3   11.9  54.4
Snow 91-20  11.0  9.5    8.2   3.5   0     0     0     0     0     0.8   6.8   11.4  51.2 
Change      -1.2 +1.8   -2.1  +1.1  --    --    --    --    --    +0.2  -2.5   -0.5  -3.2
Change %    -10% +23%   -20%  +46%  --    --    --    --    --    +33%  -19%    -4%  -5.9%

 

 

Last modified: May 6, 2021
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