National Weather Service United States Department of Commerce

Heat Wave in the Eastern US; Heavy Rain in the Ohio Valley

Dangerous, long-lasting heat is expected across portions of the Central and Southeast U.S. Showers and thunderstorms, some severe, may produce heavy rain and localized areas of flash flooding across parts of the Ohio/Tennessee Valleys into the Appalachians. Severe thunderstorms are possible across parts of the northern Great Plains. Fire weather conditions possible in the Great Basin. Read More >

                                  OAK RIDGE TN
                            DAILY NORMALS AND RECORDS
                                      APRIL

      MAX   MIN   AVG   HDD   CDD    PCPN    REC HIGH     REC LOW     REC PCPN

 1     68    44    56    10     0    0.17    84  1986    20  1987    1.27 2005
 2     68    44    56    10     1    0.16    87  2012    26  1985    0.90 1977
 3     68    45    56     9     1    0.16    87  1963    21  1992    3.33 2000
 4     69    45    57     9     1    0.16    88  2025    26  1975    5.43 1977
 5     69    45    57     9     1    0.16    88  2023    27  1975    3.33 1983

 6     69    45    57     8     1    0.16    87  2010    29  1982    1.43 2025
 7     70    46    58     8     1    0.17    83  2020    25  1982    1.84 1964
 8     70    46    58     8     1    0.17    85  2001    24  2007    1.89 1957
 9     70    46    58     8     1    0.17    88  2011    22  1985    1.32 1961
 10    71    46    58     8     1    0.18    91  1995    21  1985    1.71 1994

 11    71    47    59     7     1    0.18    85  2001    25  1989    1.68 1962
 12    71    47    59     7     1    0.17    87  1948    26  1989    2.72 2020
 13    72    47    59     7     1    0.18    86  2017    27  1975    2.30 1966
 14    72    47    60     7     1    0.19    88  2017    24  1950    1.83 2007
 15    72    48    60     6     1    0.17    86  2006    30  1950    3.74 1956

 16    72    48    60     6     1    0.18    88  2002    26  1950    3.49 1998
 17    73    48    60     6     1    0.18    88  1955    28  1949    2.06 2003
 18    73    49    61     6     1    0.17    89  2002    28  1983    2.16 1998
 19    73    49    61     5     1    0.18    90  2002    22  1983    1.85 1998
 20    74    49    61     5     1    0.18    88  2002    22  1983    0.79 1996

 21    74    49    62     5     2    0.18    89  1987    24  1983    2.16 2006
 22    74    50    62     5     2    0.19    89  1988    31  2021    2.54 2017
 23    74    50    62     4     2    0.18    90  1965    25  1986    2.57 2017
 24    75    50    62     4     2    0.18    88  2009    28  1986    1.51 2010
 25    75    51    63     4     2    0.18    88  2009    31  1983    1.09 2025

 26    75    51    63     4     2    0.17    92  1986    34  1983    2.35 1973
 27    75    51    63     4     2    0.17    92  1986    31  1976    2.81 2011
 28    76    51    64     4     2    0.18    88  1957    32  1967    1.82 2013
 29    76    52    64     4     2    0.16    91  2017    32  1992    1.96 1963
 30    76    52    64     3     2    0.17    91  1970    35  1980    1.23 1953


 MO   72.1  47.9    60  188    38    5.20    92  1986    20  1987    5.43 1977

 DATE OF OCCURANCE IN MONTH                    (26,27)         (1)          (4)