Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Fort Smith, Arkansas
September Climate Data (Page 2)

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    |-- 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   92.0 2026 64.0 1974  1.91 1977  0.0  --    0    0      0   13   69   1859    5 
 
 6   91.0 2026 62.0 1974  1.24 1943  0.0  --    0    0      0   13   82   1872    6 
 7   90.5 2026 65.0*1918  2.15 1895  0.0  --    0    0      0   13   95   1885    7 
 8   91.0 2026 65.0 1956  1.61 1942  0.0  --    0    0      0   12  107   1897    8 
 9   91.5 2026 63.5 1898  3.52 2007  0.0  --    0    0      0   12  119   1909    9 
10   88.0 2026 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   88.0 2026 56.0 1902  1.95 2008  0.0  --    0    0      0   11  165   1955   13 
14   89.5 2026 58.5 1949  3.47 2005  0.0  --    0    0      0   11  176   1966   14 
15   89.0 2026 58.5 1975  3.10 1925  0.0  --    0    0      0   10  188   1976   15 
 
16   89.0 2026 58.0 1903  2.30 1958  0.0  --    0    0      0   10  198   1986   16 
17   89.5 2026 56.5 1903  1.80 1884  0.0  --    0    0      0   10  208   1996   17 
18   89.0 2026 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   86.5 2026 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*2026(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)

Updated: October 4, 2026

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Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Fort Smith September Climate Data