Fort Smith September Climate Data

    |-- Temp. Records --||- Precip Records -||------ Degree Day Normals -------|
     Hi        Lo         Record    Record    Heating          Cooling
Day  Mean Year Mean Year  Rain Year Snow Year Day Month Season Day Month Season  Day

 1   92.0 2000 63.0 1882  3.93 2020  0.0  --    0    0      0   14   14   1804    1 
 2   92.5 1939 66.0*2009  2.70 1974  0.0  --    0    0      0   14   28   1818    2 
 3   92.5 2000 62.0 1974  3.15 2008  0.0  --    0    0      0   14   42   1832    3 
 4  (93.5)1939 61.5 1974  1.67 1918  0.0  --    0    0      0   14   56   1846    4 
 5   90.0 1998 64.0 1974  1.91 1977  0.0  --    0    0      0   13   69   1859    5 
 
 6   90.0 2012 62.0 1974  1.24 1943  0.0  --    0    0      0   13   82   1872    6 
 7   89.0 1939 65.0*1918  2.15 1895  0.0  --    0    0      0   13   95   1885    7 
 8   88.5 1939 65.0 1956  1.61 1942  0.0  --    0    0      0   12  107   1897    8 
 9   87.5 1939 63.5 1898  3.52 2007  0.0  --    0    0      0   12  119   1909    9 
10   87.5 1938 60.5 1976  2.10 1897  0.0  --    0    0      0   12  131   1921   10 
 
11   89.5 1909 60.5 1940  1.76 1947  0.0  --    0    0      0   12  143   1933   11 
12   88.0 1936 60.0 1902  3.41 1945  0.0  --    0    0      0   11  154   1944   12 
13   87.5 1939 56.0 1902  1.95 2008  0.0  --    0    0      0   11  165   1955   13 
14   87.5 1939 58.5 1949  3.47 2005  0.0  --    0    0      0   11  176   1966   14 
15   88.0 1939 58.5 1975  3.10 1925  0.0  --    0    0      0   10  188   1976   15 
 
16   86.5 1939 58.0 1903  2.30 1958  0.0  --    0    0      0   10  198   1986   16 
17   85.5*1931 56.5 1903  1.80 1884  0.0  --    0    0      0   10  208   1996   17 
18   85.0*1978 55.5 1981  1.27 1991  0.0  --    0    0      0    9  217   2005   18 
19   86.5 1954 55.5 1971  2.16 1924  0.0  --    0    0      0    9  226   2014   19 
20   89.0 1954 56.5 1991  1.59 1947  0.0  --    0    0      0    9  235   2023   20 
 
21   85.5 2022 54.0 1983 (4.44)2018  0.0  --    1    1      1    9  244   2032   21 
22   85.0 1980 52.5 1995  2.09 1955  0.0  --    1    2      2    8  252   2040   22 
23   85.0 1931 54.0*1995  2.52 1988  0.0  --    1    3      3    8  260   2048   23 
24   84.0 1920 53.0 1989  3.18 1937  0.0  --    1    4      4    8  268   2056   24 
25   83.0 1986 51.5 2000  2.76 1959  0.0  --    1    5      5    7  275   2063   25 
 
26   83.0 1977 53.0 1942  2.87 1936  0.0  --    1    6      6    7  282   2070   26 
27   82.5 1938 51.0 1942  2.64 1927  0.0  --    1    7      7    7  289   2077   27 
28   84.0 1953 52.5 1967  1.64 1926  0.0  --    1    8      8    6  295   2083   28 
29   83.5 1911 52.5 1967  3.26 1934  0.0  --    1    9      9    6  301   2089   29 
30   81.5*1998(50.5)1984* 2.06 1883  0.0  --    1   10     10    6  307   2095   30

* Indicates occurrences in previous years     ( ) Indicates monthly extremes

Period of Record:

Temperature:  June 1882 - Present
Rainfall:     June 1882 - Present
Snowfall:     October 1883 - Present
Normals:      1981-2010 (30 Year Average)

(Monthly normals are computed by adding all of the daily mean data
 and then dividing by the number of days in the month)