National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East and West

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Denver/Boulder, CO

Weather Forecast Office

Denver's Fall/Winter/Spring Statistics

Weather.gov > Denver/Boulder, CO > Denver's Fall/Winter/Spring Statistics

 

 

 

Denver's Earliest Freeze Dates since 1872

(Average Date of first Freeze: October 7th)

Rank Date
1 9/8/2020
- 9/8/1962
3 9/11/1898
4 9/12/1902
5 9/14/1876
- 9/14/1912
- 9/14/2003
- 9/14/1993
9 9/15/1889
- 9/15/1903

 

Denver's Latest Early Season Freezes since 1872

Rank Date
1 11/15/1944
2 11/6/1924
3 11/4/1940
4 10/30/1974
5 10/29/1941
- 10/29/1939
- 10/29/1931
8 10/29/1874
9 10/28/2015
10 10/27/2010
- 10/27/1963
-

10/27/1884


Denver's First Freeze Dates last 10 Years

10/25/2024
10/13/2023
10/24/2022
10/13/2021
9/8/2020
10/9/2019
10/10/2018
10/9/2017
10/6/2016
10/28/2015

 

 

Denver's Latest Freeze Dates since 1872

(Average Date of last Freeze: May 5th)

Rank Date
1 6/8/2007
2 6/2/1951
3 6/1/1919
4 5/30/1883
5 5/28/1947
6 5/26/1950
7 5/24/2002
8 5/22/2019
- 5/22/1930
- 5/22/1910

 

Denver's Earliest Late Season Freezes since 1872

 

Rank Date
1 4/5/1981
- 4/5/1977
3 4/7/1936
4 4/9/1926
5 4/13/1962
- 4/13/1881
7 4/14/1980
8 4/15/1949
- 4/15/1897
10 4/16/1974

 

Denver's Late Season Freeze Dates last 10 Years

4/29/2025
5/4/2024
4/23/2023
5/21/2022
5/12/2021
5/6/2020
5/22/2019
4/25/2018
5/4/2017
5/8/2016

 

 

 

Denver's Earliest Snow Dates since 1882 (at least 0.1") 

(Average Date of first measurable Snowfall: October 18th)

Rank Date Snow
1 9/3/1961 4.2
2 9/8/2020 1.0
- 9/8/1962 0.7
4 9/12/1989 2.3
5 9/12/1974 1.8
6 9/13/1993 5.4
7 9/16/1971 2.7
8 9/19/1955 0.2
9 9/20/1995 4.7
- 9/20/1965 3.5

 

Denver's Latest First Snowfall Dates since 1882 (at least 0.1")

Rank Date Snow

1

12/10/2021

0.3

2

11/21/1934

1.0

3

11/19/1931

1.0

4

11/17/2016

1.7

5

11/16/1894

2.6

6

11/15/2010

1.5

-

11/15/1988

2.5

-

11/15/1987

6.1

-

11/15/1902

4.0

10

11/14/2008

0.1

-

11/14/1964

4.2

-

11/14/1944

0.1


Denver's First Snowfall Dates last 10 Years (at least 0.1")

11/5/2024
10/28/2023
11/4/2022
12/10/2021
9/8/2020
10/10/2019
10/6/2018
10/9/2017
11/17/2016
11/5/2015
11/11/2014

 

 

Denver's Latest Snowfall Dates since 1882 (at least 0.1")

(Average Date of last Snowfall: April 28th)

Rank Date Snow
1 6/2/1951 0.3
2 5/29/1975 5.6
3 5/28/1950 0.1
- 5/28/1947 1.0
5 5/24/2002 0.7
6 5/21/2022 0.5
- 5/21/2019 2.8
- 5/21/2001 1.0
- 5/21/1931 3.6
- 5/21/1910 3.8
- 5/21/1891 1.0

 

Date of Last Snowfall Last 10 Years (at least 0.1")

4/18/2025
4/20/2024
4/22/2023
5/21/2022
4/21/2021
4/16/2020
5/21/2019
4/24/2018
4/29/2017
4/30/2016

 

 

Denver's Largest Daily Snowfalls since 1882 (inches)

 

Rank Snow Date
1 23.6 Dec 24,1982
2 23.0 April 23, 1885
3 22.9 Mar 18,2003
4 20.9 Dec 4,1913
5 20.7 Dec 20,2006
6 19.9 March 14, 2021
7 18.0 Mar 5,1983
8 17.3 Apr 2,1957
- 17.3 Mar 21,1944
10 16.5 Dec 5,1913

 

 

Denver's Largest First Snowfalls of the Season since 1882 (inches)

Rank Year Snowfall
1 10/20-10/23 (1906) 22.7
2 11/5-11/9 (2024) 20.0
3 09/26-9/28 (1936) 16.5
4 10/28-10/31 (1929) 16.2
5 10/03-10/5 (1969) 16.0
6 09/16-9/18 (1971) 15.6
7 09/28-9/30 (1959) 12.9
8 9/22/1895 11.4
9 10/29-10/31 (1972) 9.7
10 10/10-10/11 (2005) 9.6
11 09/28-9/29 (1985) 8.7
12 10/25-10/26 (2011) 8.5
13 11/6-11/7 (1918) 8.1
14 10/28-10/29 (2023) 7.5
15 9/20-9/21 (1995) 7.4
16 10/16/1928 7.3
17 10/26-10/27 (1976) 7.2
18 10/13-10/14 (1966) 6.9
19 9/26-9/27 (1908) 6.5
20 10-17-10/18 (1925) 6.5

 

 

 

 

Denver's Largest Snowstorms since 1882 (inches)

Rank Snowfall Dates
1 45.7 December 1-5, 1913
2 31.8 March 17-19, 2003
3 30.4 November 2-4, 1946
4 27.1 March 13-14, 2021
5 23.8 December 24, 1982
6 23.0 April 23, 1885
7 22.7 October 20-23, 1906
8 21.9 October 24-25, 1997
9 21.5 November 26-27, 1983
10 20.7 December 20-21, 2006
11 20.0 November 5-9, 2024
12 19.3 January 29-31, 1883
13 19.0 April 24-25, 1935
14 18.7 March 5-6, 1983
15 18.5 Mar 20-22, 1944
16 18.2 April 17-19, 1920
- 18.0 April 19-20, 1907
18 18.0 March 31-April 1, 1891
19 17.7 November 19-21, 1979
20 17.3 April 2, 1957

 

 

Denver's Largest Seasonal Snowfalls since 1882 (inches)

(Average Denver Seasonal Snowfall: 56.9")

Rank Season Snow
1 1908-1909  118.7
2 1958-1959  99.3
3 1913-1914  98.9
4 1972-1973  94.9
5 1946-1947  93.5
6 1973-1974  91.5
7 1943-1944  90.5
8 1906-1907  85.6
9 1979-1980  85.5
10 1923-1924  85.4

 

 

Denver's Lowest Seasonal Snowfalls since 1882 (inches)

(Average Denver Seasonal Snowfall: 56.9")

Rank Season Snow
1 1888-1889  21.3
2 2016-2017 21.8
3 2010-2011  22.8
4 1887-1888  25.5
5 2017-2018 25.7
6 1981-1982  26.7
7 1903-1904  27.2
8 1945-1946  28.6
9 2001-2002  30.2
10 2005-2006  30.4

 

 

Denver's Longest Consecutive Snow Depth Days (1" or more)
(1900-Present)

Rank # of Days End Date
1 63 1/27/1984
2 61 2/19/2007
3 60 1/29/1914
4 48 2/9/1983
5 43 1/30/1974
6 39 12/29/1992
7 38 1/30/1988
8 33 1/18/1919
9 32 1/8/2008
10 27 2/23/1989
11 25 3/4/1942
  25 1/3/1917
13 24 1/14/1942
  24 12/30/1914
  24 3/17/1912
16 23 1/30/1962
17 22 2/24/2012
  22 1/29/1992
  22 1/13/1980
  22 1/27/1940
21 21 12/7/1991
  21 12/16/1908

 

 

Denver's Top Consecutive Snowless Days (< 0.1") since 1882

Rank # of Days Time Period
1 232 4/22/2021 - 12/9/2021
  232 3/5/1887 - 10/22/1887
3 225 3/27/1888 - 11/6/1888
4 220 3/23/1889 - 10/28/1889
5 219 4/5/1886 - 11/9/1886
6 212 3/19/1925 - 10/16/1925
7 211 4/1/1992 - 10/28/1992
  211 4/3/1977 - 10/30/1977
  211 4/13/1940 - 11/9/1940
10 210 4/20/1894 - 11/15/1894

 

Denver's Coldest Temperatures since 1872
 

Rank Temperature Date
1 -29    January 9, 1875  
2 -25 December 22, 1990
- -25 January 12, 1963
- -25 January 11, 1963
- -25 February 1, 1951
- -25 February 8, 1936
- -25 December 24, 1876
8 -24 December 22, 2022
- -24 February 5, 1989
- -24 January 10, 1962
- -24 January 9, 1962
- -24 January 31, 1951
13 -22 February 6, 1899
- -22 February 4, 1883
- -22 January 28, 1872
16 -21 December 21, 1990
- -21 December 21, 1983
- -21 January 6, 1913
- -21 February 12, 1905
20 -20 January 17, 1930
- -20 December 9, 1919
- -20 January 26,1902
- -20 February 12, 1899
- -20 February 11, 1899
- -20 December 9, 1898
- -20 January 15, 1888
- -20 January 19, 1883
- -20 February 15, 1881
- -20 January 13, 1875
- -20 January 25, 1872

 

Denver's Coldest Lowest Maximum Temperatures since 1872

Rank Temperature Date
1 -10 2/3/1883
2 -9 1/19/1883
  -9 1/11/1963
  -9 2/4/1989
5 -8 1/6/1913
  -8 1/7/1937
  -8 12/21/1983
8 -7 2/3/1989
  -7 12/21/1990
10 -6 12/22/2022
  -6 12/11/1932
12 -5 2/11/1899
  -5 12/9/1932
  -5 2/9/1933
  -5 12/22/1983
  -5 12/23/1983
17 -4 1/24/1872
  -4 1/14/1888
  -4 2/7/1933
  -4 1/29/1951
20 -4 12/24/1983

 

Consecutive Hours of 0 degrees or below for Denver
(Hours are estimated for the early 1900's and 1880's as only 3 to 5 observations were taken a day)
 

Rank Number of Hours Dates
1 115 12/21 to 12/25 (1983)
2      92    12/8 to 12/12 (1932)
3         85 1/2 12/19 to 12/23 (1990)
4   69 2/3 to 2/5 (1989)
5            66 (est.) 2/1 to 2/4 (1889)
6   64 1/10 to 1/12 (1963)
             64 (est.) 1/15 to 1/18 (1886)
8            61 (est.) 2/1 to 2/4 (1883)
9   60 12/11 to 12/14 (1997)
             60 (est.) 2/10 to 2/13 (1905)

 

 

Denver's Consecutive Days <= 32 Degrees

Rank Number Ending Date
1 14 11-29-1880
2 12 01-04-1879
- 12 01-06-1878
4 11 02-02-1949
5 10 12-12-1972
- 10 03-02-1960
- 10 01-21-1930
- 10 03-19-1906
- 10 02-07-1905
- 10 02-09-1883
11 9 12-25-1983
- 9 01-26-1940
- 9 04-02-1926
- 9 02-03-1916
- 9 12-24-1909
- 9 02-17-1881
17 8 12-30-2009
- 8 02-08-1989
- 8 02-06-1985
- 8 01-20-1984

 

Denver's Consecutive Days <= 20 Degrees

Rank Number Ending Date
1 9 12-25-1983
- 9 01-21-1930
- 9 02-08-1883
4 6 02-04-1985
- 6 01-05-1974
- 6 12-10-1972
- 6 02-28-1960
- 6 12-12-1932
- 6 01-29-1902
- 6 02-14-1895
11 5 02-15-2021
- 5 12-08-2013
- 5 12-23-1998
- 5 02-03-1996
- 5 02-06-1989
- 5 02-28-1962
- 5 03-01-1947
- 5 03-11-1932
- 5 02-06-1899
- 5 01-19-1885

 

Denver's Consecutive Days <= 10 Degrees

Rank Number Ending Date
1 5 12-23-1998
- 5 12-24-1983
- 5 02-06-1899
4 4 02-05-1989
- 4 01-31-1951
- 4 12-11-1932
7 3 01-15-2024
- 3 12-07-2013
- 3 01-13-1997
- 3 12-22-1990
- 3 02-01-1985
- 3 01-28-1980
- 3 02-28-1962
- 3 01-08-1937
- 3 02-09-1933
- 3 01-16-1930
- 3 02-08-1929
- 3 12-20-1924
- 3 02-11-1895
- 3 01-18-1886

 

Denver's Consecutive Days <= 0 Degrees

Rank Number Ending Date
1 4 12-24-1983
2 3 12-22-1990
- 3 12-11-1932
4 2 01-13-1997
- 2 02-04-1989
- 2 01-12-1963
- 2 02-12-1905
- 2 02-03-1899
- 2 01-17-1886
- 2 02-03-1883
11 1 Several Days

 

 

 

All Temperature Changes Below are based on Calendar Days (Midnight to Midnight)

Denver's Largest 1 Day (Same Day) Temperature Changes since 1872
(Red denotes Low to High Change)

Rank Date Change High Low
1 01/25/1872 66 46 -20
2 01/21/1888 64 62 -2
3 12/21/2022 61 51 -10
  01/05/2015 61 56 -5
  12/26/1879 61 57 -4
6 02/08/1936 60 35 -25
  12/27/1886 60 63 3
8 03/26/1971 59 84 25
9 1/16/2024 57 38 -19
  11/20/1898 57 66 9
11 02/07/1936 56 39 -17
  01/19/1886 56 42 -14
  01/08/1875 56 39 -17
14 10/09/2019 55 83 28
  12/29/2017 55 64 9
  09/19/2010 55 96 41
  02/16/1996 55 68 13
  11/28/1958 55 50 -5
  01/21/1935 55 46 -9
  01/07/1912 55 49 -6
  01/07/1909 55 64 9
  02/02/1902 55 45 -10
  01/31/1899 55 50 -5
  12/23/1884 55 54 -1
  01/23/1877 55 40 -15
  11/28/1873 55 54 -1

 

Denver's Largest 2 Day Temperature Changes since 1872

(For example, a temperature change from 12/13/2008 to 12/14/2008)
(Red denotes Low to High Change)

Rank Ending Date Change High Low
1 12/14/2008 76 58 -18
2 12/22/2022 75 51 -24
3 02/04/1996 72 56 -16
4 12/23/1989 71 53 -18
5 10/10/2019 70 83 13
  02/06/1933 70 60 -10
  12/10/1919 70 50 -20
8 12/04/2013 69 56 -13
  02/02/1951 69 44 -25
  01/15/1875 69 52 -17
11 01/20/1943 68 65 -3
  11/11/1911 68 66 -2
  12/26/1879 68 57 -11
  01/09/1875 68 39 -29
15 2/22/2023 67 60 -7
  02/22/1914 67 70 3
  11/16/1894 67 72 5
  01/29/1873 67 50 -17
19 1/17/2024 66 47 -19
  02/19/2018 66 69 3
  01/05/2015 66 56 -10
  01/16/1972 66 59 -7
  01/03/1950 66 54 -12
  01/21/1888 66 62 -4

 

Denver's Largest 3 Day Temperature Changes since 1872

(For example, a temperature change from 12/9/1919 to 12/11/1919)
(Red denotes Low to High Change)

Rank Ending Date Change High Low
1 12/11/1919 81 60 -21
2 02/13/1951 80 73 -7
3 02/04/2020 79 74 -5
4 01/11/1963 78 53 -25
5 11/12/2014 77 64 -13
  12/15/2008 77 58 -19
  01/09/1875 77 48 -29
8 02/07/1933 76 60 -16
9 12/4/2013 75 62 -13
  02/02/1989 75 64 -11
  01/28/1951 75 68 -7
  01/20/1943 75 65 -10
13 12/24/2022 74 50 -24
  10/11/2019 74 83 9
  12/4/2008 74 69 -5
  02/13/1981 74 62 -12
  01/05/1913 74 58 -16
  12/26/1879 74 57 -17
19 02/05/1996 73 56 -16
  01/12/1877 73 58 -15

 

 

 

Denver's Coldest Winters
(December through February)

Rank Season Avg. Temp
1 1898-1899 24.6
2 1978-1979 25.6
3 1961-1962 25.7
4 1983-1984 26.2
5 1873-1874 27.0
6 2006-2007 27.2
7 1992-1993 27.4
- 1874-1875 27.4
9 1928-1929 27.5
- 1912-1913 27.5

 

Denver's Warmest Winters
(December through February)

Rank Season Avg. Temp
1 1933-1934 40.1
2 1980-1981 38.2
3 1934-1935 37.8
4 1942-1943 37.4
5 1906-1907 37.3
6 1953-1954 37.1
7 1957-1958 36.6
8 1975-1976 36.4
- 1895-1896 36.4
10 1994-1995 36.1

 

 

Denver's Highest Wind Gusts 

Date Gust Description
6/18/2013 97 mph Tornado hits ASOS
10/20/1978 96 mph High Wind Event
3/13/2019 80 mph Strong Winds with Blizzard
6/6/2020 78 mph Thunderstorm Wind
8/6/1877 75 mph Thunderstorm Wind
7/24/2016 74 mph Thunderstorm Wind
4/17/2018 70 mph High Wind Event
7/25/1965 70 mph Thunderstorm Wind
Follow us on X  Follow us on X
Follow us on Facebook  Follow us on Facebook
Follow us on YouTube  Follow us on YouTube
BOU RSS Feed  BOU RSS Feed

HAZARDS

Current Hazards
Enhanced Decision Support
SPC Outlooks

FORECASTS
Forecast Discussion
Fire Weather
Aviation
Text Products

CURRENT CONDITIONS
Current Observations

PAST WEATHER RECORDS
Colorado Tornado History
Weather Records
Local Climate Plots
On this day in Wx History

WEATHER SAFETY
NOAA Wx Radio
SkyWarn

OFFICE ACTIVITIES
Cooperative Program
Historical Observation Sites