NATIONAL WEATHER SERVICE - DENVER, COLORADO MONTHLY TEMPERATURE, RAINFALL, AND SNOWFALL EXTREMES FOR OCTOBER 20 WARMEST OCT 20 WETTEST OCT 20 SNOWIEST OCT (1873-2019) (1872-2019) (1882-2019) 1 59.9 1950 1 4.17 1969 1 31.2 1969 2 57.9 1963 2 3.92 1892 2 22.7 1906 57.9 1934 3 3.72 1942 3 22.1 1997 4 57.8 2016 4 3.50 1923 4 17.8 1923 5 57.4 1933 5 3.47 1984 5 17.2 2009 6 57.0 1947 6 3.05 1914 6 16.4 1897 7 56.5 2015 7 3.03 2007 7 16.2 1929 8 56.3 1875 8 2.84 1947 8 14.0 1889 9 55.9 1956 9 2.62 1957 9 13.8 1905 55.9 1940 10 2.46 1960 10 13.6 1908 55.9 1938 2.46 1959 11 13.1 1984 55.9 1921 12 2.31 1905 12 12.5 2019 13 55.4 1910 13 2.27 1993 13 11.8 1959 14 55.3 2010 14 2.16 2005 14 11.7 1917 55.3 1884 2.16 1951 15 10.6 1942 16 55.2 2014 16 2.15 1877 16 10.5 2005 55.2 1944 17 2.11 1889 10.5 1925 18 55.1 2003 18 2.04 1936 18 9.8 2006 55.1 1965 19 1.98 1906 19 9.7 1972 20 54.9 1945 20 1.97 1928 20 8.6 1913 20 COLDEST OCT 21 DRIEST OCT LEAST SNOWIEST OCT (1873-2019) (1872-2019) (1882-2019) 1 38.9 1969 1 T 1934 1 0.0 2014 2 42.9 2009 2 0.01 1933 0.0 2010 3 43.3 1925 3 0.05 1962 0.0 2004 4 43.7 2019 0.05 1944 0.0 2003 5 44.0 2002 5 0.06 1988 0.0 1995 6 44.3 1923 0.06 1954 0.0 1988 7 44.7 1984 0.06 1948 0.0 1965 8 45.9 1970 8 0.08 2003 0.0 1962 9 46.3 1877 0.08 2001 0.0 1944 10 46.5 1919 10 0.10 1980 0.0 1940 46.5 1913 11 0.12 1950 0.0 1934 12 46.6 1905 0.12 1938 0.0 1933 46.6 1873 0.12 1876 0.0 1931 14 46.9 1911 14 0.17 1907 0.0 1924 15 47.2 1883 15 0.18 1964 0.0 1907 16 47.7 2013 0.18 1952 0.0 1894 17 48.1 1959 17 0.19 1927 0.0 1886 18 48.2 1951 0.19 1894 18 17 YEARS 48.2 1916 19 0.19 1879 RECEIVED 20 48.3 1887 20 0.21 1910 A TRACE 0.21 1884 - Temperatures in degrees Fahrenheit. - Precipitation and Snowfall amounts in inches. - Average October Temperature is 50.9 degrees (from 1981-2010 DIA data). - Average October Precipitation is 1.02 inches (from 1981-2010 DIA data). - Average October Snowfall is 4.0 inches (from 1981-2010 DEN 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. ** - 22.1 INCHES OF SNOW FELL DURING THE BLIZZARD OF 1997 BETWEEN OCTOBER 24-25TH. 19.1 INCHES FELL IN A 24 HOUR PERIOD WHICH IS A RECORD FOR 24 HOUR SNOWFALL FOR OCTOBER. OCTOBER 1997 BECAME THE 3RD SNOWIEST OCTOBER IN DENVER HISTORY. UPDATED: 11/3/2019