Casper May 31 Weather Records

Daily averages and all-time records for weather in Casper, Wyoming for the date of May 31.
May 31 All-Time Records
1900–2024
Highest temperature 91 °F 2020
Lowest temperature 27 °F 1979
Lowest daily high 42 °F 1917
Highest daily low 57 °F 2020
Most precipitation 0.80 inches 1922
Most snow none -
May 31 Average Weather
1991–2020 1
Average high 73.2 °F
Average low 42.2 °F
Chance precipitation 35.2%
Chance snow 1.8%
Casper May 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 81 38 0.00 0.0
2022 47 35 0.22 0.0
2021 75 34 0.00 0.0
2020 91 57 0.00 0.0
2019 71 40 0.00 0.0
2018 82 49 0.00 0.0
2017 80 40 0.00 0.0
2016 65 34 0.00 0.0
2015 79 47 0.00 0.0
2014 86 36 0.00 0.0
2013 59 41 0.02 0.0
2012 74 46 0.00 0.0
2011 70 40 0.00 0.0
2010 73 35 0.00 0.0
2009 79 48 0.04 0.0
2008 72 36 0.00 0.0
2007 51 41 0.31 0.0
2006 72 35 0.00 0.0
2005 67 34 0.00 0.0
2004 69 33 0.00 0.0
2003 85 48 0.00 0.0
2002 88 42 0.00 0.0
2001 77 43 0.00 0.0
2000 77 39 0.00 0.0
1999 64 42 0.00 0.0
1998 76 34 0.00 n/a
1997 81 45 0.04 n/a
1996 65 40 0.00 n/a
1995 72 43 0.37 0.0
1994 85 50 0.10 0.0
1993 78 46 0.00 0.0
1992 58 42 0.32 0.0
1991 62 44 0.31 0.0
1990 79 47 0.00 0.0
1989 56 38 0.34 0.0
1988 68 44 0.00 0.0
1987 82 47 0.01 0.0
1986 84 44 0.00 0.0
1985 72 33 0.00 0.0
1984 82 51 0.01 0.0
1983 60 33 0.00 0.0
1982 68 31 0.00 0.0
1981 76 50 0.00 0.0
1980 62 41 0.16 0.0
1979 58 27 0.00 0.0
1978 62 37 0.00 0.0
1977 82 33 0.00 0.0
1976 76 43 0.00 0.0
1975 59 41 0.14 0.0
1974 70 31 0.00 0.0
1973 82 46 0.00 0.0
1972 85 43 0.00 0.0
1971 64 42 0.00 0.0
1970 57 38 0.18 0.0
1969 49 36 0.24 0.0
1968 68 46 0.00 0.0
1967 52 42 0.12 0.0
1966 80 52 0.04 0.0
1965 76 48 0.00 0.0
1964 60 32 0.00 0.0
1963 72 50 0.00 0.0
1962 67 45 0.13 0.0
1961 78 42 0.00 0.0
1960 80 50 0.00 0.0
1959 59 41 0.04 0.0
1958 74 50 0.00 0.0
1957 54 44 0.33 0.0
1956 73 45 0.00 0.0
1955 73 46 0.00 0.0
1954 67 41 0.00 0.0
1953 80 41 0.00 0.0
1952 75 39 0.00 0.0
1951 53 37 0.18 0.0
1950 64 35 0.00 0.0
1949 69 44 0.00 0.0
1948 n/a n/a n/a n/a
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 n/a n/a
1939 61 54 0.76 0.0
1938 70 41 0.00 0.0
1937 46 39 0.42 0.0
1936 90 55 0.20 0.0
1935 60 38 0.00 0.0
1934 80 55 0.00 0.0
1933 89 44 0.00 n/a
1932 72 49 0.00 0.0
1931 81 43 n/a n/a
1930 71 39 0.20 n/a
1929 78 47 n/a n/a
1928 69 48 0.05 0.0
1927 63 39 0.00 n/a
1926 71 41 n/a n/a
1925 82 52 n/a n/a
1924 61 39 n/a n/a
1923 83 47 n/a n/a
1922 55 33 0.80 0.0
1921 78 47 0.00 n/a
1920 56 41 0.14 n/a
1919 n/a n/a n/a n/a
1918 70 47 0.00 n/a
1917 42 30 0.12 n/a
1916 71 45 0.00 n/a
1915 n/a n/a n/a n/a
1914 78 49 0.00 0.0
1913 n/a n/a n/a n/a
1912 84 34 0.00 n/a
1911 90 30 0.00 n/a
1910 n/a n/a n/a n/a
1909 n/a n/a n/a n/a
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 58 45 0.74 n/a
What's the all-time high for Casper on 5/31?
For the date of May 31, the highest temperature ever reached in Casper history is 91 °F which happened in 2020.
Highest Temperatures in Casper on May 31
Rank Temperature Year
1 91 °F 2020
2 90 °F 1936
2 90 °F 1911
4 89 °F 1933
5 88 °F 2002
6 86 °F 2014
7 85 °F 1994
7 85 °F 1972
7 85 °F 2003
10 84 °F 1912
10 84 °F 1986
What's the all-time low for Casper on 5/31?
For the date of May 31, the lowest temperature ever reached in Casper history is 27 °F which happened in 1979.
Lowest Temperatures in Casper on May 31
Rank Temperature Year
1 27 °F 1979
2 30 °F 1917
2 30 °F 1911
4 31 °F 1982
4 31 °F 1974
6 32 °F 1964
7 33 °F 2004
7 33 °F 1977
7 33 °F 1985
7 33 °F 1983
7 33 °F 1922
Lowest High Temperatures in Casper on May 31
Rank Temperature Year
1 42 °F 1917
2 46 °F 1937
3 47 °F 2022
4 49 °F 1969
5 51 °F 2007
6 52 °F 1967
7 53 °F 1951
8 54 °F 1957
9 55 °F 1922
10 56 °F 1920
10 56 °F 1989
What's the most it has ever rained in Casper on 5/31?
For the date of May 31, the most precipitation ever recorded in Casper history is 0.80 inches which happened in 1922.
All-Time Most Precipitation in Casper on May 31
Rank Precipitation Year
1 0.80 inches 1922
2 0.76 inches 1939
3 0.74 inches 1901
4 0.42 inches 1937
5 0.37 inches 1995
6 0.34 inches 1989
7 0.33 inches 1957
8 0.32 inches 1992
9 0.31 inches 1991
9 0.31 inches 2007
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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