National Weather Service Weather Forecast Office

Below are the 2009 climate summaries for La Crosse, WI and Rochester, MN.

...La Crosse WI 2009 Climate Summary...

La Crosse Municipal Airport was colder and drier than normal during the 2009 calendar year.  More details on this can be found below.

Temperatures...

During 2009...La Crosse Municipal Airport had an average temperature of 45.8 degrees.  This was 1.5 degrees below the normal of 47.3 degrees.  This was the 43rd coldest year.  The average maximum temperature was 55.5 degrees which was 2.3 degrees below the normal of 55.0 degrees.  The average minimum temperature was 36.2 degrees which was 0.9 degrees below normal.  The table below provides a monthly break down of the 2009 temperatures and their departures from normal.

                     Average          Departure 
      Month        Temperature       from Normal
      -----        -----------       -----------
     January      15.9 degrees      -7.1 degrees
     February     22.8 degrees      +0.2 degrees
     March        34.5 degrees      -0.1 degrees
     April        48.0 degrees      -0.4 degrees
     May          60.6 degrees      -1.7 degrees
     June         67.8 degrees      -1.8 degrees
     July         68.1 degrees      -5.9 degrees - 3rd Coldest
     August       69.1 degrees      -2.5 degrees
     September    64.5 degrees      +1.8 degrees
     October      44.5 degrees      -6.1 degrees - 4th Coldest
     November     42.7 degrees      +7.2 degrees - 4th Warmest
     December     20.1 degrees      -1.7 degrees
 
     2009         45.8 degrees      -1.5 degrees - 43rd Coldest

Precipitation...

During 2009...La Crosse Municipal Airport received 30.38 inches of precipitation.  This was 1.98 inches below the normal of 32.36 inches.  The table below provides a monthly break down of the 2009 precipitation and their departures from normal.

                     Monthly          Departure 
      Month       Precipitation      from Normal
      -----       -------------      -----------
     January       0.74 inches      -0.45 inches
     February      0.97 inches      -0.02 inches
     March         1.18 inches      -0.82 inches
     April         2.51 inches      -0.87 inches
     May           3.94 inches      +0.56 inches
     June          2.85 inches      -1.15 inches
     July          2.27 inches      -1.98 inches
     August        5.29 inches      +1.01 inches
     September     1.02 inches      -2.38 inches - 10th Driest
     October       5.67 inches      +3.51 inches -  4th Wettest
     November      0.58 inches      -1.52 inches - 19th Driest
     December      3.36 inches      +2.13 inches -  2nd Wettest
 
     2009         30.38 inches      -1.98 inches

...Rochester MN 2009 Climate Summary...

Rochester International Airport was slightly warmer and drier than normal during the 2009 calendar year.  More details on this can be found below.

Temperatures...

During 2009...Rochester International Airport had an average temperature of 44.0 degrees.  This was 0.5 degrees above the normal of 43.5 degrees.  The average maximum temperature was 53.3 degrees which was 0.6 degrees above the normal of 52.7 degrees.  The average minimum temperature was 34.6 degrees which was 0.2 degrees above normal.  The table below provides a monthly break down of the 2009 temperatures and their departures from normal.

                     Average          Departure 
      Month        Temperature       from Normal
      -----        -----------       -----------
     January       8.5 degrees      -3.3 degrees
     February     20.7 degrees      +2.3 degrees
     March        32.8 degrees      +2.2 degrees
     April        46.1 degrees      +1.4 degrees
     May          58.0 degrees      +1.1 degrees
     June         65.9 degrees      -0.2 degrees
     July         65.3 degrees      -4.8 degrees - 2nd Coldest
     August       65.7 degrees      -2.0 degrees - 12th Coldest
     September    62.6 degrees      +3.7 degrees - 15th Warmest
     October      42.5 degrees      -4.5 degrees - 8th Coldest
     November     42.8 degrees     +11.6 degrees - 2nd Warmest
     December     16.7 degrees      -0.6 degrees
 
     2009         43.5 degrees      +0.5 degrees

Precipitation...

During 2009...Rochester International Airport received 30.79 inches of precipitation.  This was 0.61 inches below the normal of 31.40 inches.  The table below provides a monthly break down of the 2009 precipitation and their departures from normal.

                     Monthly          Departure 
      Month       Precipitation      from Normal
      -----       -------------      -----------
     January       0.64 inches      -0.30 inches
     February      0.79 inches      +0.04 inches
     March         0.88 inches      -1.00 inches
     April         2.09 inches      -0.92 inches
     May           3.87 inches      +0.34 inches
     June          3.33 inches      -0.67 inches
     July          3.51 inches      -1.10 inches
     August        4.16 inches      -0.17 inches
     September     1.28 inches      -1.84 inches - 19th Driest
     October       7.57 inches      +5.37 inches -  2nd Wettest
     November      0.45 inches      -1.56 inches - 19th Driest
     December      2.22 inches      +1.20 inches -  4th Wettest
 
     2009         30.79 inches      -0.61 inches