Casper August 31 Weather Records

Daily averages and all-time records for weather in Casper, Wyoming for the date of August 31.
August 31 All-Time Records
1900–2023
Highest temperature 94 °F 2007
Lowest temperature 33 °F 2020
Lowest daily high 59 °F 1952
Highest daily low 69 °F 1921
Most precipitation 0.5 inches 1931
Most snow none -
August 31 Average Weather
1991–2020 1
Average high 82.9 °F
Average low 48.3 °F
Chance precipitation 19.3%
Chance snow 0.5%
Casper August 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 89 36 0.00 0.0
2022 91 50 0.00 0.0
2021 90 48 0.00 0.0
2020 63 33 0.00 0.0
2019 89 45 0.00 0.0
2018 87 48 0.00 0.0
2017 88 60 0.00 0.0
2016 87 46 0.00 0.0
2015 88 60 0.00 0.0
2014 73 44 0.09 0.0
2013 86 55 0.00 0.0
2012 91 53 0.00 0.0
2011 93 62 0.00 0.0
2010 73 45 0.00 0.0
2009 87 49 0.03 0.0
2008 84 67 0.00 0.0
2007 94 63 0.00 0.0
2006 72 49 0.00 0.0
2005 75 37 0.00 0.0
2004 87 42 0.00 0.0
2003 70 46 0.00 0.0
2002 89 52 0.00 0.0
2001 86 62 0.00 0.0
2000 80 50 0.01 0.0
1999 85 61 0.00 0.0
1998 83 54 0.00 n/a
1997 92 46 0.00 n/a
1996 91 46 0.00 n/a
1995 91 45 0.00 0.0
1994 62 48 0.01 0.0
1993 83 37 0.00 0.0
1992 77 47 0.01 0.0
1991 92 53 0.00 0.0
1990 87 52 0.00 0.0
1989 79 50 0.00 0.0
1988 92 49 0.00 0.0
1987 84 48 0.00 0.0
1986 83 52 0.01 0.0
1985 87 56 0.00 0.0
1984 92 55 0.00 0.0
1983 93 55 0.00 0.0
1982 86 49 0.00 0.0
1981 73 44 0.00 0.0
1980 67 43 0.09 0.0
1979 77 48 0.00 0.0
1978 87 50 0.00 0.0
1977 72 33 0.00 0.0
1976 80 46 0.00 0.0
1975 89 52 0.00 0.0
1974 73 40 0.00 0.0
1973 87 57 0.00 0.0
1972 60 45 0.14 0.0
1971 87 61 0.00 0.0
1970 93 52 0.00 0.0
1969 80 46 0.00 0.0
1968 78 42 0.00 0.0
1967 79 41 0.00 0.0
1966 78 52 0.03 0.0
1965 70 33 0.00 0.0
1964 85 50 0.00 0.0
1963 71 54 0.07 0.0
1962 72 40 0.00 0.0
1961 79 56 0.00 0.0
1960 92 50 0.00 0.0
1959 87 52 0.00 0.0
1958 85 40 0.00 0.0
1957 78 50 0.00 0.0
1956 66 36 0.00 0.0
1955 92 51 0.00 0.0
1954 94 63 0.00 0.0
1953 90 57 0.00 0.0
1952 59 37 0.00 0.0
1951 76 50 0.02 0.0
1950 93 52 0.00 0.0
1949 74 41 0.00 0.0
1948 90 54 0.00 0.0
1939 88 52 0.08 0.0
1938 70 58 0.12 n/a
1937 87 57 0.00 0.0
1936 80 68 0.00 0.0
1935 80 50 0.00 0.0
1934 75 59 0.00 0.0
1932 69 55 0.00 0.0
1931 78 56 0.45 n/a
1930 83 54 0.05 n/a
1929 92 53 n/a n/a
1928 78 44 n/a n/a
1927 83 47 n/a n/a
1926 90 58 n/a n/a
1925 88 52 n/a n/a
1924 80 45 0.03 n/a
1923 77 48 n/a n/a
1922 87 67 0.00 n/a
1921 87 69 0.00 n/a
1920 69 39 0.00 n/a
1917 83 46 0.00 0.0
1916 84 50 0.00 n/a
1915 88 38 0.00 0.0
1914 72 53 0.00 0.0
1913 83 56 0.00 n/a
1912 90 52 0.00 n/a
1901 86 50 0.00 0.0
What's the all-time high for Casper on 8/31?
For the date of Aug 31, the highest temperature ever reached in Casper history is 94 °F which has happened 2 times, most recently in 2007.
Highest Temperatures in Casper on August 31
Rank Temperature Year
1 94 °F 1954
1 94 °F 2007
3 93 °F 1983
3 93 °F 1950
3 93 °F 1970
3 93 °F 2011
7 92 °F 1997
7 92 °F 1955
7 92 °F 1960
7 92 °F 1984
7 92 °F 1991
7 92 °F 1988
7 92 °F 1929
What's the all-time low for Casper on 8/31?
For the date of Aug 31, the lowest temperature ever reached in Casper history is 33 °F which has happened 3 times, most recently in 2020.
Lowest Temperatures in Casper on August 31
Rank Temperature Year
1 33 °F 2020
1 33 °F 1977
1 33 °F 1965
4 36 °F 1956
4 36 °F 2023
6 37 °F 2005
6 37 °F 1952
6 37 °F 1993
9 38 °F 1915
10 39 °F 1920
Lowest High Temperatures in Casper on August 31
Rank Temperature Year
1 59 °F 1952
2 60 °F 1972
3 62 °F 1994
4 63 °F 2020
5 66 °F 1956
6 67 °F 1980
7 69 °F 1932
7 69 °F 1920
9 70 °F 2003
9 70 °F 1965
9 70 °F 1938
What's the most it has ever rained in Casper on 8/31?
For the date of Aug 31, the most precipitation ever recorded in Casper history is 0.45 inches which happened in 1931.
All-Time Most Precipitation in Casper on August 31
Rank Precipitation Year
1 0.45 inches 1931
2 0.14 inches 1972
3 0.12 inches 1938
4 0.09 inches 1980
4 0.09 inches 2014
6 0.08 inches 1939
7 0.07 inches 1963
8 0.05 inches 1930
9 0.03 inches 1966
9 0.03 inches 2009
9 0.03 inches 1924
Weather Station Details
Years Station Coordinates
1949–2023 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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