Casper September 12 Weather Records

Daily averages and all-time records for weather in Casper, Wyoming for the date of September 12.
September 12 All-Time Records
1900–2024
Highest temperature 95 °F 1911
Lowest temperature 25 °F 2014
Lowest daily high 41 °F 1970
Highest daily low 62 °F 1939
Most precipitation 1.10 inches 1938
Most snow 1.0 inches 1949
September 12 Average Weather
1991–2020 1
Average high 77.3 °F
Average low 43.7 °F
Chance precipitation 22.2%
Chance snow 1.5%
Casper September 12 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 80 38 0.00 0.0
2022 84 44 0.00 0.0
2021 84 46 0.00 0.0
2020 79 41 0.00 0.0
2019 66 45 0.00 0.0
2018 90 40 0.00 0.0
2017 92 53 0.00 0.0
2016 52 36 0.07 0.0
2015 86 44 0.00 0.0
2014 59 25 0.00 0.0
2013 66 52 0.06 0.0
2012 72 37 0.00 0.0
2011 81 58 0.00 0.0
2010 80 41 0.00 0.0
2009 64 34 0.03 0.0
2008 58 46 0.18 0.0
2007 85 47 0.00 0.0
2006 82 37 0.00 0.0
2005 71 35 0.00 0.0
2004 86 53 0.11 0.0
2003 73 38 0.17 0.0
2002 62 50 0.20 0.0
2001 80 36 0.00 0.0
2000 84 41 0.00 0.0
1999 60 32 0.00 0.0
1998 81 56 0.03 n/a
1997 79 50 0.00 n/a
1996 77 51 0.00 n/a
1995 81 46 0.00 0.0
1994 84 57 0.02 0.0
1993 79 38 0.00 0.0
1992 78 52 0.03 0.0
1991 78 51 0.02 0.0
1990 94 44 0.00 0.0
1989 50 32 0.00 0.0
1988 43 37 0.11 0.0
1987 80 41 0.00 0.0
1986 68 42 0.00 0.0
1985 64 45 0.00 0.0
1984 77 47 0.00 0.0
1983 76 38 0.00 0.0
1982 64 38 0.00 0.0
1981 90 55 0.00 0.0
1980 67 49 0.00 0.0
1979 63 36 0.01 0.0
1978 62 42 0.03 0.0
1977 71 45 0.00 0.0
1976 72 48 0.00 0.0
1975 68 33 0.00 0.0
1974 45 32 0.07 0.9
1973 77 47 0.01 0.0
1972 77 48 0.00 0.0
1971 86 41 0.00 0.0
1970 41 30 0.00 0.0
1969 83 52 0.00 0.0
1968 75 48 0.01 0.0
1967 63 35 0.00 0.0
1966 80 55 0.00 0.0
1965 80 42 0.00 0.0
1964 76 33 0.00 0.0
1963 85 52 0.00 0.0
1962 84 41 0.00 0.0
1961 49 36 0.28 0.0
1960 80 44 0.00 0.0
1959 89 52 0.00 0.0
1958 91 53 0.05 0.0
1957 60 38 0.29 0.0
1956 80 51 0.03 0.0
1955 88 50 0.00 0.0
1954 80 58 0.00 0.0
1953 89 46 0.00 0.0
1952 77 54 0.00 0.0
1951 57 34 0.02 0.0
1950 62 38 0.00 0.0
1949 57 29 0.12 1.0
1948 83 46 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 n/a
1939 76 62 0.00 0.0
1938 60 39 1.10 0.0
1937 n/a n/a n/a n/a
1936 90 43 0.00 0.0
1935 86 45 0.00 0.0
1934 n/a 47 0.00 0.0
1933 75 47 0.00 0.0
1932 70 42 0.00 0.0
1931 82 46 0.00 n/a
1930 78 45 n/a n/a
1929 73 49 n/a n/a
1928 80 38 n/a n/a
1927 80 44 0.02 n/a
1926 63 45 0.45 n/a
1925 77 44 n/a n/a
1924 64 40 n/a n/a
1923 75 41 n/a n/a
1922 84 42 0.00 n/a
1921 82 34 0.08 n/a
1920 81 54 0.00 n/a
1919 n/a n/a n/a n/a
1918 n/a n/a n/a n/a
1917 80 39 0.00 0.0
1916 74 39 0.00 n/a
1915 58 35 0.20 0.0
1914 n/a 37 0.00 0.0
1913 n/a n/a n/a n/a
1912 n/a n/a n/a n/a
1911 95 46 n/a 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 69 42 0.00 0.0
What's the all-time high for Casper on 9/12?
For the date of Sep 12, the highest temperature ever reached in Casper history is 95 °F which happened in 1911.
Highest Temperatures in Casper on September 12
Rank Temperature Year
1 95 °F 1911
2 94 °F 1990
3 92 °F 2017
4 91 °F 1958
5 90 °F 2018
5 90 °F 1936
5 90 °F 1981
8 89 °F 1953
8 89 °F 1959
10 88 °F 1955
What's the all-time low for Casper on 9/12?
For the date of Sep 12, the lowest temperature ever reached in Casper history is 25 °F which happened in 2014.
Lowest Temperatures in Casper on September 12
Rank Temperature Year
1 25 °F 2014
2 29 °F 1949
3 30 °F 1970
4 32 °F 1974
4 32 °F 1999
4 32 °F 1989
7 33 °F 1964
7 33 °F 1975
9 34 °F 2009
9 34 °F 1921
9 34 °F 1951
Lowest High Temperatures in Casper on September 12
Rank Temperature Year
1 41 °F 1970
2 43 °F 1988
3 45 °F 1974
4 49 °F 1961
5 50 °F 1989
6 52 °F 2016
7 57 °F 1951
7 57 °F 1949
9 58 °F 2008
9 58 °F 1915
What's the most it has ever rained in Casper on 9/12?
For the date of Sep 12, the most precipitation ever recorded in Casper history is 1.10 inches which happened in 1938.
All-Time Most Precipitation in Casper on September 12
Rank Precipitation Year
1 1.10 inches 1938
2 0.45 inches 1926
3 0.29 inches 1957
4 0.28 inches 1961
5 0.20 inches 2002
5 0.20 inches 1915
7 0.18 inches 2008
8 0.17 inches 2003
9 0.12 inches 1949
10 0.11 inches 1988
10 0.11 inches 2004
All-Time Most Snow in Casper on September 12
Rank Precipitation Year
1 1.0 inches 1949
2 0.9 inches 1974
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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