National Weather Service United States Department of Commerce

Tropical Weather Moving Closer to Texas and Floridas

Harvey has regenerated into a Tropical Depression as of 11 am EDT today. Hurricane, Tropical Storm and Storm Surge Watches have been issued for portions of the Texas coast. Harvey is expected to begin impacting the Texas coast on Friday, bringing heavy rainfall resulting in potentially life-threatening flooding, storm surge, winds and surf. For more information about the storm, please visit NHC. Read More >

            NATIONAL WEATHER SERVICE - DENVER, COLORADO
           TEMPERATURE NORMALS AND EXTREMES FOR SEPTEMBER
                                                                            
     |NORMAL|RECORD| YEAR |RECORD| YEAR ||NORMAL|RECORD| YEAR |RECORD| YEAR |
DATE | HIGH | HIGH |  SET | HIGH |  SET ||  LOW |  LOW |  SET |  LOW |  SET |
     |      |      |      |  MIN |      ||      |      |      |  MAX |      |
-----|------|------|------|------|------||------|------|------|------|------|
  1  |  84  |  97# | 1995 |  68  | 2011 ||  54  |  44  | 1962 |  57  | 1972 |
  2  |  84  |  95  | 1983^|  67  | 1939 ||  54  |  40  | 1952 |  52  | 1974 |
  3  |  83  |  95  | 1995 |  68  | 2013 ||  53  |  33  | 1961 |  46  | 1961 |
  4  |  83  |  97# | 1995^|  69  | 2013 ||  53  |  40  | 1968^|  52  | 1929 |
  5  |  83  |  97# | 2013^|  66  | 1946 ||  53  |  38  | 1962 |  51  | 1918 |

  6  |  82  |  97# | 2013 |  66  | 1933 ||  52  |  34  | 1929 |  45  | 1929 |
  7  |  82  |  95  | 2013^|  63  | 1938^||  52  |  34  | 1929 |  41  | 1929 |
  8  |  82  |  94  | 1959 |  64  | 1940^||  51  |  31  | 1962 |  42  | 1929 |
  9  |  81  |  94  | 1994^|  63  | 1994^||  51  |  31  | 1962 |  53  | 1989 |
 10  |  81  |  93  | 1998^|  66  | 2005 ||  51  |  35  | 1898 |  42  | 1898 |

 11  |  81  |  92  | 1951 |  65  | 1939^||  50  |  32  | 1898 |  41  | 1989 |
 12  |  80  |  94  | 1911 |  64  | 1939^||  50  |  31  | 1902 |  40  | 1989 |
 13  |  80  |  96  | 1990^|  62  | 1927 ||  49  |  33  | 1993 |  49  | 1961 |
 14  |  79  |  92  | 1948 |  63  | 1895^||  49  |  29  | 2003 |  43  | 1912 |
 15  |  79  |  92  | 2000 |  61  | 1992^||  49  |  32  | 1912^|  47  | 1903 |

 16  |  79  |  95  | 2000 |  63  | 1926 ||  48  |  30  | 1965 |  48  | 1971^|
 17  |  78  |  95  | 2000 |  63  | 1925 ||  48  |  30  | 1965 |  35  | 1971 |
 18  |  78  |  93  | 1895 |  69  | 1947 ||  47  |  23  | 1971 |  40  | 1971 |
 19  |  77  |  96  | 2010 |  62  | 1947 ||  47  |  20  | 1971 |  46  | 1965 |
 20  |  77  |  94  | 2010 |  65  | 1941 ||  47  |  28  | 1983 |  45  | 1965 |

 21  |  76  |  88  | 1885 |  60  | 1926 ||  46  |  27  | 1995 |  36  | 1995 |
 22  |  76  |  89  | 1953 |  62  | 1884 ||  46  |  27  | 1895 |  45  | 1941 |
 23  |  75  |  90  | 1905^|  63  | 1934 ||  45  |  29  | 1895 |  43  | 1965 |
 24  |  75  |  89  | 1992 |  59  | 1949 ||  45  |  29  | 2000^|  40  | 1913 |
 25  |  75  |  91  | 1998 |  56  | 2014^||  44  |  25  | 1926 |  45  | 1934 |

 26  |  74  |  90  | 2010^|  60  | 1948 ||  44  |  28  | 1927 |  34  | 1927 |
 27  |  74  |  92  | 1953 |  59  | 2001 ||  44  |  21  | 1908 |  35  | 1936 |
 28  |  73  |  92  | 2010 |  59  | 1931 ||  43  |  21  | 1985 |  34  | 1984 |
 29  |  73  |  92  | 1892 |  61  | 1981 ||  43  |  17* | 1985 |  29  | 1985 |
 30  |  72  |  90  | 1980 |  62  | 1891 ||  42  |  25  | 1985 |  36  | 1959 |

The Normal High and Low Temperatures are calculated from 1981-2010 data.
           The Temperature Extremes range from 1872-2013.

^ - Also in previous years.

# - Highest Temperature of the Month:  97 degrees on 9/1/1995, 9/4/1995,
                                       9/4/1960, 9/5/1899, 9/5/2013 and
                                       9/6/2013 

* - Lowest Temperature of the Month:  17 degrees on 9/29/1985.

- The September Mean Temperature is 62.4 degrees (from 1971-2000 DIA data).

- Data collected at the Downtown City Office from 1872-December 1949, then
  at the Stapleton Airport Office from January 1950-February 1995, then at
  Denver International Airport from March 1995-Present. 

UPDATED: 9/26/2014 - WFO BOU