Very Wet Water Year at La Crosse, WI and Rochester, MN

The 2010 Water Year was very wet at both La Crosse, WI (second wettest) and Rochester, MN (fourth wettest).  Hydrologists and climatologists often use the Water Year for tracking water resources.  While the definition may vary regionally, a common definition of Water Year is October 1st through September 30th.  This interval is often used because hydrological systems are typically at their lowest levels near October 1st.  In addition, most areas are typically starting their dry season.  The Water Year is designated by the calendar year in which it ends.  More details on the 2010 Water Year at La Crosse, WI and Rochester, MN can be found below.

...Second Wettest Water Year in La Crosse WI...

During the 2010 water year (October 1, 2009 through September 30, 2010), La Crosse Municipal Airport received 46.08 inches of precipitation.  This was the second wettest Water Year.  The only other Water Year which was wetter was 1973 when 46.67 inches of precipitation fell.  The table below lists the ten wettest Water Years in La Crosse, WI.

         Ten Wettest Water Years
         (October 1-September 30)
            in La Crosse WI
               1873-2010

            Precipitation       Water
  Rank          Total           Year+
  ----      -------------       -----             
    1       46.67 inches        1973
    2       46.08 inches        2010
    3       44.49 inches        1901
    4       43.55 inches        1938
    5       43.50 inches        1993
    6       42.29 inches        1876
    7       41.44 inches        1935
    8       41.14 inches        1942
    9       40.23 inches        1881
   10       40.06 inches        2004

   + Ending Year

...Fourth Wettest Water Year in Rochester MN...

During the 2010 water year (October 1, 2009 through September 30, 2010), Rochester International Airport received 42.76 inches of precipitation.  This was the fourth wettest Water Year.  The wettest Water Year occurred in 1990 when 43.66 inches of precipitation fell.  The table below lists the ten wettest Water Years in Rochester, MN.

         Ten Wettest Water Years
         (October 1-September 30)
            in Rochester MN
               1886-2010

            Precipitation       Water
  Rank          Total           Year+
  ----      -------------       -----             
    1       43.66 inches        1990
    2       42.98 inches        1938
    3       42.79 inches        1942
    4       42.76 inches        2010
    5       42.47 inches        1993
    6       42.06 inches        2007
    7       41.20 inches        1999
    8       40.54 inches        1978
    9       40.36 inches        1986
   10       40.29 inches        2001

   + Ending Year



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