National Weather Service United States Department of Commerce

Central U.S. Severe Storms and Heavy Rain; Western Fire Weather Threats

A strong system will produce a swath of impacts. Severe storms with large hail, damaging winds, and a couple of tornadoes will be possible in the south and central Plains. Heavy rain could cause flash flooding in the Mid Mississippi Valley. Mountain snow will develop in the Rockies. Critical fire weather threats are expected across northern California and the Southwest. Read More >

                                  TRI-CITIES TN
                            DAILY NORMALS AND RECORDS
                                     OCTOBER

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

 1     76    51    63     4     2    0.09    93  2019    31  1947    0.95 1966
 2     75    50    63     4     2    0.08    93  2019    29  1946    1.22 1977
 3     75    50    62     4     2    0.09    94  2019    25  1974    1.92 1961
 4     75    49    62     4     2    0.08    88  2019    28  1974    1.77 1972
 5     74    49    62     5     1    0.09    90  1954    29  1968    1.29 1937

 6     74    49    61     5     1    0.08    91  1941    34  1988    1.65 1959
 7     74    48    61     5     1    0.08    90  2018    33  1985    1.19 1976
 8     73    48    60     6     1    0.08    88  2007    27  2000    1.31 2017
 9     73    47    60     6     1    0.09    88  1939    29  1978    0.83 1976
 10    72    47    60     6     1    0.08    86  2017    27  2000    0.86 2020

 11    72    46    59     7     1    0.07    86  2017    26  2000    0.88 2020
 12    72    46    59     7     1    0.07    86  1954    29  2000    1.28 1990
 13    71    46    58     7     1    0.08    86  1954    28  1988    0.97 1982
 14    71    45    58     8     0    0.07    85  1954    26  1988    1.09 2014
 15    71    45    58     8     0    0.08    83  1971    25  1939    1.17 1974

 16    70    44    57     8     0    0.08    83  1984    28  1939    3.65 1964
 17    70    44    57     8     0    0.08    84  2007    27  1943    0.93 1948
 18    70    43    56     9     0    0.08    85  1938    25  1943    2.22 1990
 19    69    43    56     9     0    0.08    86  2016    24  1948    1.15 2019
 20    69    43    56    10     0    0.08    85  2016    26  1972    1.25 1944

 21    68    42    55    10     0    0.08    84  1979    22  1952    2.06 1985
 22    68    42    55    10     0    0.08    85  1947    24  1987    0.60 1990
 23    68    41    54    11     0    0.08    82  1947    24  1997    1.58 2017
 24    67    41    54    11     0    0.08    84  1963    27  2006    0.96 1971
 25    67    41    54    11     0    0.08    81  2012    24  2006    1.57 1976

 26    67    40    53    12     0    0.08    83  2010    22  2013    1.11 2018
 27    66    40    53    12     0    0.09    83  1939    20  1962    1.21 2010
 28    66    40    53    12     0    0.08    84  1991    25  1976    1.05 1973
 29    65    39    52    13     0    0.09    79  2016    24  1976    1.42 1970
 30    65    39    52    13     0    0.09    79  2016    21  1952    1.54 1949

 31    65    38    52    14     0    0.08    80  1984    24  1952    1.30 1961

 MO   70.2  44.3  57.3  259    19    2.52    94  2019    20  1962    3.65 1964

 DATE OF OCCURANCE IN MONTH                        (3)        (27)         (16)