National Weather Service United States Department of Commerce

Widespread Showers in the Mid-Atlantic

Widespread showers and some thunderstorms from Ian may produce isolated flash flooding in the central Appalachians into the Mid-Atlantic and southern New England through the weekend. Hazardous conditions persist along portions of the East coast. Showers, thunderstorms, and high elevation snow are possible across the Central/Southern Rockies and into the Great Basin. Read More >

National Weather Service - Denver/Boulder, Colorado

Denver Area Normals & Extremes for October

January | February | March | April | May | June | July | August | September | October | November | December

Date Normal High Record High Year Set Record Warmest Minimum Year Set   Normal Low Record Low Year Set Record Coldest Maximum Year Set   Maximum Precipitation Year Set Maximum Snowfall Year Set

1

72

90#

1892

57

2005   44

27

1985

37

1959   0.82 1994 3.6 1959

2

72

88

2005

59

1884   43

26

2009

40

1902   0.39 1924 T 1959

3

71

88

2005

60

1954   43

31

2009^

42

1986   1.28 1969 9.8 1969

4

71

87

1997

58

1922   42

28

2013

35

1969   1.07 1984 5.9 1969

5

70

86

1997^

55

1947   42

20

1969

42

2012   1.24 1951 1.8 1951

6

70

87

2020^

55

1947   41

26

1995

35

2000   0.31 1921 0.5 2018

7

69

87

1934

55

2006   41

23

1970

38

1970   0.77 1957 4.0 1946

8

69

85

2020^

54

1954^   40

22

1970

39

2009   1.04 2011 1.2 1990

9

68

87

1910

55

2020^   40

18

2009

36

2017   0.62 2005 2.8 2017

10

68

89

1910

56

1928   39

13

2019

26

2009   0.99 2005 9.9 2005

11

67

87

2015

57

1881   39

9

2019

33

1986   0.82 1969 7.9 1969

12

67

87

1991^

55

1996   38

10

1969

24

1969   2.11 1892 3.7 1923

13

66

85

1962

56

1897   38

3

1969

26

1969   2.48 2007 1.9 1985

14

66

85

1962

56

1882   38

4

1969

27

2018   1.45 1947 6.2 1966

15

66

85

2016

54

1935   37

18

2018

35

1984   1.13 1942 6.1 1984

16

65

89

1991

54

1910   37

15

1969

33

1969   0.59 1928 7.3 1928

17

65

86

1926

56

1926   36

18

1969

37

1989   1.06 1993 5.0 1925

18

64

84

2009^

54

1924   36

19

1916

34

1908   1.58 1960 11.0 1908

19

64

86

2003

52

1979^   36

18

1916

31

1916   0.47 1898 4.0 1949

20

63

83

1950

50

2012^   35

21

1995

32

1911   0.70 1936 4.5 1936

21

63

83

2003

54

1947   35

17

1911

26

1906   0.79 2015 8.0 1906

22

63

84

2003

52

1902   34

8

1873

27

1906   0.91 1978 8.0 1906

23

62

87

1973

49

2003   34

16

1873

30

2002   1.81 1914 10.2 1942

24

62

82

2014

49

1940^   34

8

1887

24

1887   1.24 1923 8.5 1923

25

61

84

2017

50

1894   33

1

1873

21

1997^   0.81 1997 3.5 1923

26

61

83

1977

49

2014   33

3

1997

16

2020   1.03 1897 12.0 1897

27

61

83

2016

47

1933^   33

8

2020

28

1911   0.26 1936 2.2 1895

28

60

82

2016

55

2016   32

9

1917

21

2019   0.58 1917 6.1 2009

29

60

84

1950

48

1981^   32

-2*

1917

18

2019   0.91 1889 8.5 1929

30

60

80

1950

49

1950   32

3

2019

18

2002  

0.86

1903

9.0

1905

31

59

79

2016^

51

1933   31

7

2019

19

2002   0.66 1889 8.0 1972
 

 

The Normal High and Low Temperatures are calculated from 1991-2020 data.

The Temperature Extremes range from 1872-Present

^ - Also in Previous Years

# - Highest Temperatures of the Month:  90° on 10/1/1892

* - Lowest Temperature of the Month:  -2° on 10/29/1917

- The October Mean Temperature is 51.1° (from 1991-2020 data)

- Data collected at the Downtown City Office from 1872 thru December 1948, then at the Stapleton Airport Office from

January 1950 thru February 1995, then at Denver International Airport from March 1995 to Present.

 

Updated: 6/24/2021