National Weather Service United States Department of Commerce

Fort Smith, Arkansas
September Climate Data (Page 1)

     |-----Normals 1981-2010------| |--------- Record Temperatures ---------|
     Temperature   Precipitation     Hi        Lo        Hi        Lo
Day  Mx/Mn  Mean  Day  Month  Year   Max Year  Max Year  Min Year  Min Year    Day
 1   91/68   79  0.11  0.11  29.47   108 2000  68 1882 (82)1922  54 1893    1
 2   91/68   79  0.12  0.23  29.59  (109)2000  71 2009  81 1936  51 1882    2
 3   90/67   79  0.13  0.36  29.72  (109)2000  71 1940  80 1936  50 1952    3
 4   90/67   78  0.12  0.48  29.84  (109)1998  70 1967  81 1939  48 1891    4
 5   90/67   78  0.12  0.60  29.96   104*1998  70 1918  77 1939  51 1953    5

 6   89/66   78  0.13  0.73  30.09   106 1947  68 1918  79 1936  47 1974    6
 7   89/66   77  0.13  0.86  30.22   105 1947  68 1882  78 1907  51 2011    7
 8   88/66   77  0.12  0.98  30.34   102 1925  70 1951  77 1941  49 1956    8
 9   88/65   77  0.14  1.12  30.48   100 1939  68 1907  75 1939  48 1956    9
10   88/65   76  0.13  1.25  30.61   102 1909  71 1966  76 1939  46 1976   10

11   87/64   76  0.13  1.38  30.74   104 1909  68 1892  77 1936  42 1976   11
12   87/64   75  0.14  1.52  30.88   100 1930  68 1929  78 1936  47 1940   12
13   86/64   75  0.14  1.66  31.02   100 1980  64 1974  76 2008  42 1902   13
14   86/63   75  0.14  1.80  31.16   100*2000  62 1949  77 1915  44 1902   14
15   86/63   74  0.14  1.94  31.30   101 1939  61 1975  77 1936  46 1902   15

16   85/62   74  0.14  2.08  31.44   101 1956  61 2011  78 1939  44 1979   16
17   85/62   73  0.13  2.21  31.57   102 1896  69 1937  75 1921  43 1903   17
18   84/61   73  0.14  2.35  31.71    98 2005  69 1971  78 1942  40 1981   18
19   84/61   73  0.13  2.48  31.84   100 1954  58 1971  73 1972  40 1981   19
20   84/60   72  0.14  2.62  31.98    99 1954  64 1918  79 1954  43 1971   20

21   83/60   72  0.14  2.76  32.12    98 1988  64 1995  76 1931  39 1983   21
22   83/60   71  0.15  2.91  32.27    98*2005  62 1995  75 1945  38 1982   22
23   82/59   71  0.14  3.05  32.41    97 2000  66 1915  75 1945  40 1995   23
24   82/59   70  0.15  3.20  32.56    97 1920  62 1994  73*2007  36 1989   24
25   82/58   70  0.15  3.35  32.71    97*2012  58*2000  73 1933  38 1989   25

26   81/58   70  0.15  3.50  32.86    96 1954 (57)1984  74 1933  40 1982   26
27   81/57   69  0.14  3.64  33.00    98 1954  61 1984  72 1944  38 1942   27
28   81/57   69  0.14  3.78  33.14   104 1953  59 1887  73 1911  39 1967   28
29   80/57   68  0.14  3.92  33.28   100 1953  62 1984  73 1933 (33)1967   29
30   80/56   68  0.13  4.05  33.41    99 1953  60 1920  72 1933  37 1984   30
* Indicates occurrences in previous years     ( ) Indicates monthly extremes
September Monthly Normals 1981-2010:

Normal Max Temperature:   85.4F   Monthly Heating Degree Days:        17
Normal Min Temperature:   62.3F   Season Total Heating Degree Days:   17
Normal Mean Temperature:  73.9F   Monthly Cooling Degree Days:       283
Normal Monthly Rainfall:  4.05"   Season Total Cooling Degree Days: 1978
Normal Monthly Snowfall:   0.0"

September Monthly Records:

Warmest Month:  83.4F in 1939     Wettest Month:  10.49" in 1934
Coolest Month:  65.7F in 1974     Driest Month:    0.05" in 1928
(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 6, 2017