Modesto August 21 Weather Records

Daily averages and all-time records for weather in Modesto, California for the date of August 21.
August 21 All-Time Records
1906–2024
Highest temperature 101 °F 1969
Lowest temperature 50 °F 1959
Lowest daily high 78 °F 1968
Highest daily low 70 °F 2008
Most precipitation 0.10 inches 2003
August 21 Average Weather
1991–2020 1
Average high 93.4 °F
Average low 62.7 °F
Chance precipitation 0.5%
Modesto August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 85 67 0.00 n/a
2022 95 67 0.00 n/a
2021 82 58 0.00 n/a
2020 90 68 0.00 n/a
2019 95 61 0.00 n/a
2018 85 58 0.00 n/a
2017 88 65 0.00 n/a
2016 95 64 0.00 n/a
2015 93 62 0.00 n/a
2014 91 60 0.00 n/a
2013 94 64 0.00 0.0
2012 95 62 0.00 n/a
2011 89 58 0.00 n/a
2010 84 58 0.00 n/a
2009 98 61 0.00 n/a
2008 91 70 0.00 n/a
2007 100 69 0.00 n/a
2006 90 58 0.00 n/a
2005 93 61 0.00 n/a
2004 89 62 0.00 n/a
2003 82 65 0.10 n/a
2002 89 57 0.00 n/a
2001 85 57 0.00 n/a
2000 92 56 0.00 n/a
1999 94 60 0.00 n/a
1998 88 56 0.00 0.0
1997 95 63 0.00 0.0
1996 92 60 0.00 0.0
1995 n/a n/a n/a n/a
1994 90 59 0.00 0.0
1993 90 62 0.00 0.0
1992 89 63 0.00 0.0
1991 90 57 0.00 0.0
1990 86 60 0.00 0.0
1989 86 58 0.00 0.0
1988 89 61 0.00 0.0
1987 87 55 0.00 0.0
1986 n/a n/a n/a n/a
1985 90 55 0.00 0.0
1984 91 58 0.00 0.0
1983 84 60 0.00 0.0
1982 100 65 0.00 0.0
1981 93 56 0.00 0.0
1980 90 60 0.00 0.0
1979 84 58 0.00 0.0
1978 86 61 0.00 0.0
1977 95 58 0.00 0.0
1976 86 61 0.00 0.0
1975 89 62 0.00 0.0
1974 96 58 0.00 0.0
1973 91 61 0.00 0.0
1972 94 58 0.00 0.0
1971 89 58 0.00 0.0
1970 89 53 0.00 0.0
1969 101 61 0.00 0.0
1968 78 52 0.00 0.0
1967 97 60 0.00 0.0
1966 90 54 0.00 0.0
1965 85 55 0.00 0.0
1964 94 61 0.00 0.0
1963 93 57 0.00 0.0
1962 100 61 0.00 0.0
1961 94 62 0.00 0.0
1960 92 56 0.00 0.0
1959 84 50 0.00 0.0
1958 98 62 0.00 0.0
1957 91 57 0.00 0.0
1956 89 57 0.00 0.0
1955 95 58 0.00 0.0
1954 88 54 0.00 0.0
1953 86 54 0.00 0.0
1952 93 59 0.00 0.0
1951 90 59 0.00 0.0
1950 83 58 0.00 0.0
1949 92 52 0.00 0.0
1948 83 58 0.00 0.0
1947 83 51 0.00 n/a
1946 92 59 0.00 n/a
1945 101 60 0.00 n/a
1944 90 50 0.00 n/a
1943 84 52 0.00 n/a
1942 99 61 0.00 n/a
1941 86 57 0.00 n/a
1940 92 52 0.00 n/a
1939 97 60 0.00 n/a
1938 92 59 0.00 n/a
1937 96 57 0.00 n/a
1936 79 53 0.00 n/a
1935 96 53 0.00 n/a
1934 91 61 0.00 n/a
1933 95 58 0.00 n/a
1932 95 53 0.00 n/a
1931 92 54 0.00 n/a
1930 95 51 0.00 n/a
1929 100 59 0.00 0.0
1928 98 55 0.00 n/a
1927 97 54 0.00 n/a
1926 n/a n/a n/a n/a
1925 n/a n/a n/a n/a
1924 n/a n/a n/a n/a
1923 n/a n/a n/a n/a
1922 n/a n/a n/a n/a
1921 n/a n/a n/a n/a
1920 n/a n/a n/a n/a
1919 n/a n/a n/a n/a
1918 n/a n/a n/a n/a
1917 n/a n/a n/a n/a
1916 n/a n/a n/a n/a
1915 n/a n/a 0.00 n/a
1914 n/a n/a 0.00 0.0
1913 n/a n/a 0.00 n/a
1912 n/a n/a 0.00 n/a
1911 n/a n/a 0.00 n/a
1910 n/a n/a 0.00 n/a
1909 n/a n/a 0.00 n/a
1908 n/a n/a 0.00 n/a
1907 n/a n/a n/a n/a
1906 n/a n/a 0.00 n/a
What's the all-time high for Modesto on 8/21?
For the date of Aug 21, the highest temperature ever reached in Modesto history is 101 °F which has happened 2 times, most recently in 1969.
Highest Temperatures in Modesto on August 21
Rank Temperature Year
1 101 °F 1945
1 101 °F 1969
3 100 °F 2007
3 100 °F 1962
3 100 °F 1929
3 100 °F 1982
7 99 °F 1942
8 98 °F 2009
8 98 °F 1928
8 98 °F 1958
What's the all-time low for Modesto on 8/21?
For the date of Aug 21, the lowest temperature ever reached in Modesto history is 50 °F which has happened 2 times, most recently in 1959.
Lowest Temperatures in Modesto on August 21
Rank Temperature Year
1 50 °F 1959
1 50 °F 1944
3 51 °F 1947
3 51 °F 1930
5 52 °F 1968
5 52 °F 1940
5 52 °F 1943
5 52 °F 1949
9 53 °F 1936
9 53 °F 1935
9 53 °F 1932
9 53 °F 1970
Lowest High Temperatures in Modesto on August 21
Rank Temperature Year
1 78 °F 1968
2 79 °F 1936
3 82 °F 2021
3 82 °F 2003
5 83 °F 1947
5 83 °F 1948
5 83 °F 1950
8 84 °F 1959
8 84 °F 1979
8 84 °F 1943
8 84 °F 2010
8 84 °F 1983
What's the most it has ever rained in Modesto on 8/21?
For the date of Aug 21, the most precipitation ever recorded in Modesto history is 0.10 inches which happened in 2003.
All-Time Most Precipitation in Modesto on August 21
Rank Precipitation Year
1 0.10 inches 2003
Weather Station Details
Years Station Coordinates
1906–2024 Modesto City-County Airport location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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