Casper October 20 Weather Records

Daily averages and all-time records for weather in Casper, Wyoming for the date of October 20.
October 20 All-Time Records
1900–2024
Highest temperature 79 °F 1934
Lowest temperature 15 °F 1949
Lowest daily high 24 °F 1949
Highest daily low 47 °F 1914
Most precipitation 0.48 inches 1949
Most snow 11.5 inches 1949
October 20 Average Weather
1991–2020 1
Average high 57.8 °F
Average low 29.8 °F
Chance precipitation 23.7%
Chance snow 12.8%
Casper October 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 75 38 0.00 0.0
2022 76 32 0.00 0.0
2021 51 30 0.00 0.3
2020 51 35 0.00 0.0
2019 40 27 0.45 5.2
2018 69 23 0.00 0.0
2017 72 41 0.00 0.0
2016 58 25 0.00 0.0
2015 66 43 0.00 0.0
2014 75 30 0.00 0.0
2013 49 26 0.14 0.0
2012 75 46 0.00 0.0
2011 66 33 0.00 0.0
2010 69 30 0.00 0.0
2009 42 32 0.12 0.2
2008 60 34 0.00 0.0
2007 57 32 0.37 0.9
2006 48 29 0.00 0.0
2005 63 44 0.00 0.0
2004 66 38 0.00 0.0
2003 77 41 0.00 0.0
2002 63 26 0.00 0.0
2001 58 23 0.00 0.0
2000 65 25 0.00 0.0
1999 66 32 0.00 0.0
1998 47 23 0.00 0.0
1997 44 34 0.00 n/a
1996 38 24 0.25 3.5
1995 67 26 0.00 0.0
1994 60 35 0.00 0.0
1993 56 31 0.00 0.0
1992 77 32 0.00 0.0
1991 67 24 0.00 0.0
1990 41 25 0.00 0.0
1989 72 44 0.00 0.0
1988 62 33 0.00 0.0
1987 51 21 0.00 0.0
1986 57 43 0.02 0.0
1985 69 41 0.00 0.0
1984 35 18 0.01 0.1
1983 66 24 0.00 0.0
1982 54 25 0.00 0.0
1981 47 26 0.05 0.5
1980 61 35 0.00 0.0
1979 46 33 0.00 0.0
1978 71 46 0.00 0.0
1977 68 40 0.05 0.0
1976 54 21 0.00 0.0
1975 70 44 0.00 0.0
1974 76 35 0.00 0.0
1973 72 37 0.00 0.0
1972 64 40 0.02 0.0
1971 60 34 0.00 0.0
1970 65 34 0.00 0.0
1969 54 33 0.00 0.0
1968 70 41 0.00 0.0
1967 69 23 0.00 0.0
1966 67 43 0.00 0.0
1965 56 29 0.00 0.0
1964 72 34 0.00 0.0
1963 54 41 0.00 0.0
1962 67 35 0.00 0.0
1961 68 44 0.00 0.0
1960 61 34 0.00 0.0
1959 65 27 0.00 0.0
1958 46 32 0.00 0.0
1957 45 33 0.03 0.0
1956 65 30 0.00 0.0
1955 63 42 0.00 0.0
1954 62 34 0.00 0.0
1953 53 35 0.03 0.0
1952 67 41 0.00 0.0
1951 55 31 0.00 0.0
1950 75 43 0.00 0.0
1949 24 15 0.48 11.5
1948 62 27 0.00 0.0
1947 n/a n/a n/a n/a
1946 n/a n/a n/a n/a
1945 n/a n/a n/a n/a
1944 n/a n/a n/a n/a
1943 n/a n/a n/a n/a
1942 n/a n/a n/a n/a
1941 n/a n/a n/a n/a
1940 n/a n/a 0.00 0.0
1939 68 33 0.00 0.0
1938 65 30 0.00 0.0
1937 54 38 0.32 0.0
1936 60 26 0.35 6.0
1935 68 28 0.00 0.0
1934 79 40 0.00 0.0
1933 66 n/a 0.00 0.0
1932 50 16 0.00 0.0
1931 70 37 0.00 0.0
1930 44 27 0.00 n/a
1929 64 28 n/a n/a
1928 64 43 n/a n/a
1927 76 32 n/a n/a
1926 66 26 n/a n/a
1925 54 34 n/a n/a
1924 49 42 0.08 n/a
1923 57 21 n/a n/a
1922 66 33 0.00 n/a
1921 78 32 0.00 n/a
1920 46 34 0.09 n/a
1919 n/a n/a n/a n/a
1918 68 30 n/a 0.0
1917 47 20 0.29 3.0
1916 48 31 0.00 n/a
1915 65 27 0.00 0.0
1914 72 47 0.00 n/a
1913 62 40 0.00 0.0
1912 n/a n/a n/a n/a
1911 58 29 0.00 n/a
1910 n/a n/a n/a n/a
1909 59 46 0.00 0.0
1908 n/a n/a n/a n/a
1907 n/a n/a n/a n/a
1906 n/a n/a n/a n/a
1905 n/a n/a n/a n/a
1904 n/a n/a n/a n/a
1903 n/a n/a n/a n/a
1902 n/a n/a n/a n/a
1901 n/a n/a n/a n/a
What's the all-time high for Casper on 10/20?
For the date of Oct 20, the highest temperature ever reached in Casper history is 79 °F which happened in 1934.
Highest Temperatures in Casper on October 20
Rank Temperature Year
1 79 °F 1934
2 78 °F 1921
3 77 °F 2003
3 77 °F 1992
5 76 °F 1974
5 76 °F 1927
5 76 °F 2022
8 75 °F 2012
8 75 °F 2014
8 75 °F 2023
8 75 °F 1950
What's the all-time low for Casper on 10/20?
For the date of Oct 20, the lowest temperature ever reached in Casper history is 15 °F which happened in 1949.
Lowest Temperatures in Casper on October 20
Rank Temperature Year
1 15 °F 1949
2 16 °F 1932
3 18 °F 1984
4 20 °F 1917
5 21 °F 1976
5 21 °F 1923
5 21 °F 1987
8 23 °F 1998
8 23 °F 2018
8 23 °F 1967
8 23 °F 2001
Lowest High Temperatures in Casper on October 20
Rank Temperature Year
1 24 °F 1949
2 35 °F 1984
3 38 °F 1996
4 40 °F 2019
5 41 °F 1990
6 42 °F 2009
7 44 °F 1997
7 44 °F 1930
9 45 °F 1957
10 46 °F 1979
10 46 °F 1958
10 46 °F 1920
What's the most it has ever rained in Casper on 10/20?
For the date of Oct 20, the most precipitation ever recorded in Casper history is 0.48 inches which happened in 1949.
All-Time Most Precipitation in Casper on October 20
Rank Precipitation Year
1 0.48 inches 1949
2 0.45 inches 2019
3 0.37 inches 2007
4 0.35 inches 1936
5 0.32 inches 1937
6 0.29 inches 1917
7 0.25 inches 1996
8 0.14 inches 2013
9 0.12 inches 2009
10 0.09 inches 1920
All-Time Most Snow in Casper on October 20
Rank Precipitation Year
1 11.5 inches 1949
2 6.0 inches 1936
3 5.2 inches 2019
4 3.5 inches 1996
5 3.0 inches 1917
6 0.9 inches 2007
7 0.5 inches 1981
8 0.3 inches 2021
9 0.2 inches 2009
10 0.1 inches 1984
Weather Station Details
Years Station Coordinates
1949–2024 Casper-Natrona County International Airport location
1900–1948 Casper 2 E location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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