Grand Junction August 21 Weather Records

Daily averages and all-time records for weather in Grand Junction, Colorado for the date of August 21.
August 21 All-Time Records
1900–2024
Highest temperature 99 °F 2019
Lowest temperature 47 °F 1924
Lowest daily high 66 °F 1921
Highest daily low 72 °F 1982
Most precipitation 0.93 inches 1921
Most snow none -
August 21 Average Weather
1991–2020 1
Average high 90.2 °F
Average low 61.1 °F
Chance precipitation 20.0%
Chance snow 0%
Grand Junction August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 98 71 0.00 0.0
2022 85 62 0.00 0.0
2021 85 53 0.11 0.0
2020 97 66 0.00 0.0
2019 99 59 0.00 0.0
2018 84 60 0.91 0.0
2017 94 62 0.00 0.0
2016 92 56 0.00 0.0
2015 95 56 0.00 0.0
2014 81 54 0.00 0.0
2013 93 59 0.00 0.0
2012 95 62 0.00 0.0
2011 94 67 0.00 0.0
2010 94 57 0.00 0.0
2009 97 60 0.00 0.0
2008 95 58 0.00 0.0
2007 97 60 0.00 0.0
2006 93 63 0.00 0.0
2005 90 56 0.00 0.0
2004 85 62 0.00 0.0
2003 94 66 0.00 0.0
2002 85 58 0.00 0.0
2001 84 62 0.00 0.0
2000 88 60 0.00 0.0
1999 76 60 0.29 0.0
1998 79 64 0.33 0.0
1997 93 65 0.00 0.0
1996 89 67 0.00 0.0
1995 93 65 0.00 0.0
1994 92 65 0.00 0.0
1993 75 60 0.56 0.0
1992 93 70 0.00 0.0
1991 95 61 0.00 0.0
1990 90 63 0.00 0.0
1989 79 55 0.00 0.0
1988 79 62 0.83 0.0
1987 88 65 0.01 0.0
1986 87 65 0.01 0.0
1985 90 67 0.00 0.0
1984 72 61 0.08 0.0
1983 95 63 0.00 0.0
1982 95 72 0.00 0.0
1981 85 65 0.00 0.0
1980 87 51 0.00 0.0
1979 85 54 0.00 0.0
1978 89 59 0.00 0.0
1977 93 64 0.00 0.0
1976 94 62 0.00 0.0
1975 80 60 0.00 0.0
1974 88 54 0.00 0.0
1973 83 63 0.07 0.0
1972 88 59 0.00 0.0
1971 87 58 0.00 0.0
1970 83 63 0.11 0.0
1969 93 61 0.00 0.0
1968 86 60 0.00 0.0
1967 90 58 0.00 0.0
1966 86 53 0.00 0.0
1965 83 59 0.00 0.0
1964 80 48 0.00 0.0
1963 90 64 0.00 0.0
1962 88 60 0.00 0.0
1961 92 64 0.00 0.0
1960 97 61 0.00 0.0
1959 87 64 0.00 0.0
1958 89 61 0.68 0.0
1957 79 61 0.08 0.0
1956 87 58 0.00 0.0
1955 94 61 0.00 0.0
1954 83 56 0.00 0.0
1953 82 63 0.02 0.0
1952 79 62 0.00 0.0
1951 77 57 0.00 0.0
1950 91 60 0.00 0.0
1949 95 57 0.00 0.0
1948 89 59 0.09 0.0
1947 81 60 0.53 0.0
1946 84 63 0.31 0.0
1945 88 63 0.00 0.0
1944 92 62 0.00 0.0
1943 80 66 0.06 0.0
1942 91 61 0.00 0.0
1941 86 58 0.05 0.0
1940 90 66 0.00 0.0
1939 89 65 0.00 0.0
1938 94 61 0.00 0.0
1937 95 60 0.00 0.0
1936 82 61 0.34 0.0
1935 90 61 0.00 0.0
1934 89 60 0.00 0.0
1933 89 65 0.00 0.0
1932 88 69 0.02 0.0
1931 95 67 0.00 0.0
1930 95 64 0.00 0.0
1929 90 64 0.00 0.0
1928 96 63 0.00 0.0
1927 85 62 0.00 0.0
1926 90 61 0.00 0.0
1925 86 59 0.00 0.0
1924 81 47 0.00 0.0
1923 83 57 0.00 0.0
1922 77 60 0.28 0.0
1921 66 59 0.93 0.0
1920 78 50 0.00 0.0
1919 94 60 0.00 0.0
1918 88 67 0.00 0.0
1917 89 60 0.00 0.0
1916 85 56 0.00 0.0
1915 95 62 0.00 0.0
1914 82 64 0.04 0.0
1913 96 66 0.05 0.0
1912 90 59 0.00 0.0
1911 83 64 0.05 0.0
1910 95 68 0.00 0.0
1909 89 62 0.01 0.0
1908 81 60 0.07 0.0
1907 89 62 0.00 0.0
1906 74 63 0.30 0.0
1905 94 63 0.00 0.0
1904 83 61 0.00 0.0
1903 95 70 0.00 0.0
1902 94 59 0.00 0.0
1901 88 58 0.00 0.0
1900 87 58 0.01 0.0
What's the all-time high for Grand Junction on 8/21?
For the date of Aug 21, the highest temperature ever reached in Grand Junction history is 99 °F which happened in 2019.
Highest Temperatures in Grand Junction on August 21
Rank Temperature Year
1 99 °F 2019
2 98 °F 2023
3 97 °F 2007
3 97 °F 1960
3 97 °F 2009
3 97 °F 2020
7 96 °F 1913
7 96 °F 1928
9 95 °F 1910
9 95 °F 1949
9 95 °F 1903
9 95 °F 1983
9 95 °F 1915
9 95 °F 2015
9 95 °F 1937
9 95 °F 1982
9 95 °F 2012
9 95 °F 1930
9 95 °F 1931
9 95 °F 1991
9 95 °F 2008
What's the all-time low for Grand Junction on 8/21?
For the date of Aug 21, the lowest temperature ever reached in Grand Junction history is 47 °F which happened in 1924.
Lowest Temperatures in Grand Junction on August 21
Rank Temperature Year
1 47 °F 1924
2 48 °F 1964
3 50 °F 1920
4 51 °F 1980
5 53 °F 2021
5 53 °F 1966
7 54 °F 1979
7 54 °F 2014
7 54 °F 1974
10 55 °F 1989
Lowest High Temperatures in Grand Junction on August 21
Rank Temperature Year
1 66 °F 1921
2 72 °F 1984
3 74 °F 1906
4 75 °F 1993
5 76 °F 1999
6 77 °F 1951
6 77 °F 1922
8 78 °F 1920
9 79 °F 1957
9 79 °F 1989
9 79 °F 1988
9 79 °F 1952
9 79 °F 1998
What's the most it has ever rained in Grand Junction on 8/21?
For the date of Aug 21, the most precipitation ever recorded in Grand Junction history is 0.93 inches which happened in 1921.
All-Time Most Precipitation in Grand Junction on August 21
Rank Precipitation Year
1 0.93 inches 1921
2 0.91 inches 2018
3 0.83 inches 1988
4 0.68 inches 1958
5 0.56 inches 1993
6 0.53 inches 1947
7 0.34 inches 1936
8 0.33 inches 1998
9 0.31 inches 1946
10 0.30 inches 1906
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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