Casper October 31 Weather Records

Daily averages and all-time records for weather in Casper, Wyoming for the date of October 31 (Halloween).
October 31 All-Time Records
1900–2024
Highest temperature 74 °F 1933
Lowest temperature -5 °F 1923
Lowest daily high 18 °F 2003
Highest daily low 49 °F 1933
Most precipitation 0.56 inches 1928
Most snow 7.0 inches 1928
October 31 Average Weather
1991–2020 1
Average high 52.8 °F
Average low 26.6 °F
Chance precipitation 22.4%
Chance snow 14.9%
Casper October 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 54 19 0.00 0.0
2022 62 38 0.00 0.0
2021 32 28 0.09 0.5
2020 54 19 0.00 0.0
2019 33 17 0.01 0.0
2018 49 19 0.00 0.0
2017 51 9 0.00 0.0
2016 65 34 0.00 0.0
2015 66 40 0.00 0.0
2014 70 23 0.00 0.0
2013 53 28 0.00 0.0
2012 67 35 0.00 0.0
2011 66 40 0.00 0.0
2010 58 32 0.00 0.0
2009 57 37 0.00 0.0
2008 70 26 0.00 0.0
2007 50 23 0.00 0.0
2006 39 9 0.00 0.0
2005 54 24 0.00 0.0
2004 40 22 0.12 2.0
2003 18 11 0.07 3.0
2002 20 11 0.00 0.0
2001 60 43 0.00 0.0
2000 39 32 0.31 3.1
1999 69 37 0.00 0.0
1998 44 33 0.00 0.0
1997 54 31 0.22 n/a
1996 34 22 0.00 0.0
1995 31 19 0.16 1.8
1994 53 27 0.00 0.0
1993 59 37 0.00 0.0
1992 51 27 0.00 0.0
1991 32 10 0.03 0.6
1990 67 42 0.00 0.0
1989 32 17 0.07 0.9
1988 68 34 0.00 0.0
1987 62 36 0.00 0.0
1986 45 31 0.01 0.2
1985 50 27 0.00 0.0
1984 45 13 0.01 0.1
1983 69 40 0.00 0.0
1982 49 32 0.04 0.0
1981 48 24 0.00 0.0
1980 66 41 0.00 0.0
1979 33 15 0.00 0.0
1978 63 21 0.00 0.0
1977 46 20 0.00 0.0
1976 60 32 0.00 0.0
1975 51 34 0.00 0.0
1974 37 34 0.27 0.6
1973 39 28 0.00 0.0
1972 24 2 0.00 0.0
1971 34 26 0.00 0.0
1970 48 18 0.00 0.0
1969 48 25 0.11 0.7
1968 50 25 0.01 0.0
1967 59 35 0.00 0.0
1966 41 15 0.28 3.5
1965 63 24 0.00 0.0
1964 51 37 0.11 0.0
1963 42 29 0.00 0.0
1962 60 35 0.00 0.0
1961 45 22 0.00 0.0
1960 54 33 0.00 0.0
1959 48 24 0.00 0.0
1958 58 29 0.00 0.0
1957 61 40 0.00 0.0
1956 52 30 0.00 0.0
1955 39 22 0.15 1.5
1954 43 26 0.00 0.0
1953 64 35 0.00 0.0
1952 62 42 0.00 0.0
1951 29 13 0.01 0.5
1950 55 33 0.02 0.0
1949 55 33 0.00 0.0
1948 58 39 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 58 29 0.00 0.0
1938 47 42 0.00 0.0
1937 68 33 0.00 0.0
1936 60 40 0.05 0.0
1935 33 7 0.00 0.0
1934 62 42 0.00 0.0
1933 74 49 0.00 0.0
1932 48 11 0.00 0.0
1931 62 23 0.00 0.0
1930 63 19 n/a n/a
1929 35 21 0.08 1.0
1928 52 28 0.56 7.0
1927 49 27 0.15 1.0
1926 54 38 n/a n/a
1925 58 27 n/a n/a
1924 56 37 n/a n/a
1923 25 -5 n/a n/a
1922 43 32 0.00 n/a
1921 63 22 0.00 n/a
1920 30 23 0.42 5.0
1919 n/a n/a n/a n/a
1918 64 21 0.04 0.0
1917 44 31 0.00 0.0
1916 58 37 0.00 n/a
1915 60 38 0.00 0.0
1914 64 43 0.00 n/a
1913 54 20 0.00 0.0
1912 n/a n/a n/a n/a
1911 35 20 0.03 0.5
1910 n/a n/a n/a n/a
1909 51 30 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 10/31?
For the date of Oct 31, the highest temperature ever reached in Casper history is 74 °F which happened in 1933.
Highest Temperatures in Casper on October 31
Rank Temperature Year
1 74 °F 1933
2 70 °F 2008
2 70 °F 2014
4 69 °F 1999
4 69 °F 1983
6 68 °F 1937
6 68 °F 1988
8 67 °F 2012
8 67 °F 1990
10 66 °F 2011
10 66 °F 2015
10 66 °F 1980
What's the all-time low for Casper on 10/31?
For the date of Oct 31, the lowest temperature ever reached in Casper history is -5 °F which happened in 1923.
Lowest Temperatures in Casper on October 31
Rank Temperature Year
1 -5 °F 1923
2 2 °F 1972
3 7 °F 1935
4 9 °F 2006
4 9 °F 2017
6 10 °F 1991
7 11 °F 2003
7 11 °F 1932
7 11 °F 2002
10 13 °F 1984
10 13 °F 1951
Lowest High Temperatures in Casper on October 31
Rank Temperature Year
1 18 °F 2003
2 20 °F 2002
3 24 °F 1972
4 25 °F 1923
5 29 °F 1951
6 30 °F 1920
7 31 °F 1995
8 32 °F 2021
8 32 °F 1991
8 32 °F 1989
What's the most it has ever rained in Casper on 10/31?
For the date of Oct 31, the most precipitation ever recorded in Casper history is 0.56 inches which happened in 1928.
All-Time Most Precipitation in Casper on October 31
Rank Precipitation Year
1 0.56 inches 1928
2 0.42 inches 1920
3 0.31 inches 2000
4 0.28 inches 1966
5 0.27 inches 1974
6 0.22 inches 1997
7 0.16 inches 1995
8 0.15 inches 1955
8 0.15 inches 1927
10 0.12 inches 2004
All-Time Most Snow in Casper on October 31
Rank Precipitation Year
1 7.0 inches 1928
2 5.0 inches 1920
3 3.5 inches 1966
4 3.1 inches 2000
5 3.0 inches 2003
6 2.0 inches 2004
7 1.8 inches 1995
8 1.5 inches 1955
9 1.0 inches 1927
9 1.0 inches 1929
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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