Grand Junction September 18 Weather Records

Daily averages and all-time records for weather in Grand Junction, Colorado for the date of September 18.
September 18 All-Time Records
1900–2024
Highest temperature 93 °F 2018
Lowest temperature 31 °F 1971
Lowest daily high 46 °F 1965
Highest daily low 68 °F 1947
Most precipitation 1.05 inches 1965
Most snow 3.1 inches 1965
September 18 Average Weather
1991–2020 1
Average high 80.2 °F
Average low 51.8 °F
Chance precipitation 22.1%
Chance snow 0%
Grand Junction September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 75 55 0.01 0.0
2022 86 56 0.00 0.0
2021 85 55 0.02 0.0
2020 86 53 0.00 0.0
2019 84 51 0.00 0.0
2018 93 63 0.00 0.0
2017 81 52 0.00 0.0
2016 84 46 0.00 0.0
2015 76 49 0.00 0.0
2014 87 56 0.00 0.0
2013 82 59 0.06 0.0
2012 83 49 0.00 0.0
2011 76 48 0.00 0.0
2010 91 56 0.00 0.0
2009 81 56 0.00 0.0
2008 84 54 0.00 0.0
2007 76 46 0.00 0.0
2006 67 36 0.00 0.0
2005 81 50 0.00 0.0
2004 78 64 0.01 0.0
2003 66 42 0.00 0.0
2002 59 50 0.35 0.0
2001 78 49 0.00 0.0
2000 80 55 0.00 0.0
1999 81 51 0.00 0.0
1998 87 55 0.00 0.0
1997 83 60 0.15 0.0
1996 51 40 0.00 0.0
1995 73 55 0.02 0.0
1994 83 55 0.03 0.0
1993 65 51 0.10 0.0
1992 81 60 0.00 0.0
1991 78 50 0.00 0.0
1990 67 51 0.29 0.0
1989 85 62 0.00 0.0
1988 75 40 0.00 0.0
1987 79 46 0.00 0.0
1986 72 55 0.00 0.0
1985 69 55 0.19 0.0
1984 86 57 0.00 0.0
1983 90 64 0.00 0.0
1982 79 56 0.00 0.0
1981 86 50 0.00 0.0
1980 88 54 0.00 0.0
1979 88 59 0.00 0.0
1978 67 46 0.00 0.0
1977 79 48 0.00 0.0
1976 83 57 0.00 0.0
1975 87 56 0.00 0.0
1974 81 49 0.00 0.0
1973 86 50 0.00 0.0
1972 89 62 0.00 0.0
1971 61 31 0.00 0.0
1970 82 47 0.00 0.0
1969 82 51 0.00 0.0
1968 77 43 0.00 0.0
1967 77 53 0.01 0.0
1966 86 52 0.00 0.0
1965 46 34 1.05 3.1
1964 82 51 0.05 0.0
1963 86 59 0.00 0.0
1962 92 57 0.00 0.0
1961 66 55 0.25 0.0
1960 78 49 0.00 0.0
1959 68 45 0.00 0.0
1958 78 55 0.00 0.0
1957 74 54 0.00 0.0
1956 90 51 0.00 0.0
1955 83 61 0.00 0.0
1954 82 57 0.00 0.0
1953 83 54 0.00 0.0
1952 85 52 0.00 0.0
1951 85 50 0.00 0.0
1950 81 57 0.00 0.0
1949 80 49 0.00 0.0
1948 86 57 0.14 0.0
1947 87 68 0.00 0.0
1946 63 50 0.04 0.0
1945 81 45 0.00 0.0
1944 80 64 0.00 0.0
1943 87 57 0.00 0.0
1942 68 48 0.00 0.0
1941 75 58 0.26 0.0
1940 63 55 0.41 0.0
1939 84 53 0.00 0.0
1938 85 52 0.00 0.0
1937 90 58 0.00 0.0
1936 80 56 0.00 0.0
1935 92 57 0.00 0.0
1934 87 55 0.00 0.0
1933 85 59 0.01 0.0
1932 88 52 0.00 0.0
1931 69 55 0.41 0.0
1930 89 55 0.00 0.0
1929 82 54 0.00 0.0
1928 87 63 0.18 0.0
1927 83 56 0.00 0.0
1926 83 47 0.00 0.0
1925 70 59 0.18 0.0
1924 66 47 0.00 0.0
1923 55 47 0.26 0.0
1922 84 59 0.00 0.0
1921 81 55 0.00 0.0
1920 87 60 0.00 0.0
1919 79 57 0.06 0.0
1918 84 49 0.00 0.0
1917 85 51 0.00 0.0
1916 82 55 0.00 0.0
1915 84 55 0.00 0.0
1914 89 59 0.00 0.0
1913 83 48 0.00 0.0
1912 76 43 0.00 0.0
1911 76 47 0.00 0.0
1910 88 62 0.00 0.0
1909 80 54 0.00 0.0
1908 81 50 0.00 0.0
1907 83 60 0.00 0.0
1906 72 43 0.00 0.0
1905 68 47 0.00 0.0
1904 83 56 0.00 0.0
1903 75 44 0.00 0.0
1902 85 60 0.00 0.0
1901 83 45 0.00 0.0
1900 70 42 0.00 0.0
What's the all-time high for Grand Junction on 9/18?
For the date of Sep 18, the highest temperature ever reached in Grand Junction history is 93 °F which happened in 2018.
Highest Temperatures in Grand Junction on September 18
Rank Temperature Year
1 93 °F 2018
2 92 °F 1962
2 92 °F 1935
4 91 °F 2010
5 90 °F 1956
5 90 °F 1983
5 90 °F 1937
8 89 °F 1914
8 89 °F 1930
8 89 °F 1972
What's the all-time low for Grand Junction on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Grand Junction history is 31 °F which happened in 1971.
Lowest Temperatures in Grand Junction on September 18
Rank Temperature Year
1 31 °F 1971
2 34 °F 1965
3 36 °F 2006
4 40 °F 1996
4 40 °F 1988
6 42 °F 1900
6 42 °F 2003
8 43 °F 1906
8 43 °F 1968
8 43 °F 1912
Lowest High Temperatures in Grand Junction on September 18
Rank Temperature Year
1 46 °F 1965
2 51 °F 1996
3 55 °F 1923
4 59 °F 2002
5 61 °F 1971
6 63 °F 1940
6 63 °F 1946
8 65 °F 1993
9 66 °F 1924
9 66 °F 1961
9 66 °F 2003
What's the most it has ever rained in Grand Junction on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Grand Junction history is 1.05 inches which happened in 1965.
All-Time Most Precipitation in Grand Junction on September 18
Rank Precipitation Year
1 1.05 inches 1965
2 0.41 inches 1940
2 0.41 inches 1931
4 0.35 inches 2002
5 0.29 inches 1990
6 0.26 inches 1941
6 0.26 inches 1923
8 0.25 inches 1961
9 0.19 inches 1985
10 0.18 inches 1925
10 0.18 inches 1928
All-Time Most Snow in Grand Junction on September 18
Rank Precipitation Year
1 3.1 inches 1965
Weather Station Details
Years Station Coordinates
1900–2024 Grand Junction Walker Field location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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