Tulsa September Climate Data

     |-----Normals 1991-2020------| |--------- 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   90/68   79  0.12  0.12  28.36  108  2000  69  1994 (82) 2011  48   1967  1
 2   89/68   79  0.13  0.25  28.49 (109) 1939  68  1974 (82) 1936  51   1974  2
 3   89/67   78  0.12  0.37  28.61 (109) 1939  70  1974 (82) 1995  47   1974  3
 4   89/67   78  0.12  0.49  28.73  107 *1998  66  1967  81  2012  46   1974  4
 5   88/67   78  0.12  0.61  28.85  107  1913  70  1962  79 *1985  49   1974  5

 6   88/66   77  0.12  0.73  28.97  107  1907  69  1962  80  1998  48   2011  6
 7   88/66   77  0.13  0.86  29.10  106 *1936  65  1986  79 *1985  49   2011  7
 8   88/66   77  0.13  0.99  29.23  103 *1925  66  1995  80  2016  50   1956  8
 9   87/65   76  0.13  1.12  29.36  102  1909  70  1941  76 *2014  51  *2011  9
10   87/65   76  0.13  1.25  29.49  105  1936  64  2020  77  2010  48  *1968  10

11   87/65   76  0.13  1.38  29.62  103  1909  67  2020  79  1936  45   1940  11
12   86/64   75  0.14  1.52  29.76  102  1930  62  2014  78  1936  48  *1959  12
13   86/64   75  0.15  1.67  29.91  103  1965  55  1989  78  1936  49   1960  13
14   85/64   74  0.13  1.80  30.04  103  1965  57  1989  78  1931  46   1961  14
15   85/63   74  0.13  1.93  30.17  103  1956  60  1949  79  1956  42   1993  15

16   85/63   74  0.13  2.06  30.30  103  1956  59  2011  77  1956  44   1993  16
17   84/62   73  0.13  2.19  30.43  104  1931  61  1971  79  1978  44   1981  17
18   84/62   73  0.13  2.32  30.56  100 *1952  56  1971  80  1978  42   1981  18
19   84/62   73  0.13  2.45  30.69  100 *1954  58  1971  79  1954  45  *1991  19
20   83/61   72  0.13  2.58  30.82  102  1954  64  1995  81  1910  39   1938  20

21   83/61   72  0.14  2.72  30.96   99  2022  57  1995  78  1980  38   1918  21
22   83/60   72  0.13  2.85  31.09   99  1921  58  1995  75  1931  37   1995  22
23   82/60   71  0.13  2.98  31.22  101  1931  60  1994  74* 2010  37   1995  23
24   82/60   71  0.13  3.11  31.35   99  1931  58  1974  76  1958  37   1989  24
25   82/59   70  0.12  3.23  31.47   99  1939  58  1913  76  2012  43   1926  25

26   81/59   70  0.13  3.36  31.60   96 *1938  48  1926  73 *1998  37   1912  26
27   81/58   70  0.13  3.49  31.73   96 *1954 (51) 1926  73 *2019 (35)  1942  27
28   80/58   69  0.12  3.61  31.85  102  1953  55 *1984  75  2019  38   1908  28
29   80/58   69  0.12  3.73  31.97   98  1953  55  1945  75  2019  37   1916  29
30   80/57   68  0.12  3.85  32.09   99  1979  59  1959  75  2019 (35)  1984  30

     * Indicates occurrences in previous years      ( ) Monthly Extremes

September Monthly Normals (1991-2020):

Normal Max Temperature:   84.8°F   Monthly Heating Degree Days:        17
Normal Min Temperature:   62.8°F   Season Total Heating Degree Days:   17
Normal Mean Temperature:  73.8°F   Monthly Cooling Degree Days:       281
Normal Monthly Rainfall:   3.85"   Season Total Cooling Degree Days: 2045
Normal Monthly Snowfall:   0.0"

September Monthly Records:

Warmest September:  81.9F in 1931          Wettest Month: 18.81" in 1971
Coolest September:  64.7F in 1974          Driest Month:   0.00" in 1897/1888
                                           Most Snowfall:  None

(Monthly temperature records are computed by adding all of the daily mean
 temperatures and then dividing by the number of days in the month.)