San Luis Obispo January 21 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of January 21.
January 21 All-Time Records
1893–2024
Highest temperature 83 °F 1976
Lowest temperature 25 °F 1963
Lowest daily high 45 °F 1937
Highest daily low 56 °F 2024
Most precipitation 2.46 inches 1969
January 21 Average Weather
1991–2020 1
Average high 65.8 °F
Average low 41.9 °F
Chance precipitation 30.3%
San Luis Obispo January 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 68 56 0.00 n/a
2023 65 33 0.00 n/a
2022 72 42 0.00 n/a
2021 73 41 0.00 n/a
2020 61 45 0.00 0.0
2019 59 41 0.00 n/a
2018 64 36 0.00 0.0
2017 57 45 0.06 n/a
2016 70 46 0.00 0.0
2015 69 42 0.00 0.0
2014 79 39 0.00 0.0
2013 77 36 0.00 0.0
2012 60 47 1.66 n/a
2011 72 37 0.00 n/a
2010 56 42 1.48 n/a
2009 72 54 0.00 n/a
2008 54 37 0.06 n/a
2007 65 34 0.00 n/a
2006 64 41 0.00 n/a
2005 68 39 0.01 n/a
2004 67 36 0.00 n/a
2003 64 45 0.00 n/a
2002 61 34 0.00 n/a
2001 61 35 0.00 n/a
2000 61 43 0.00 n/a
1999 63 45 0.00 n/a
1998 59 42 0.00 0.0
1997 58 46 0.57 0.0
1996 64 45 0.00 0.0
1995 n/a 45 0.48 0.0
1994 68 40 0.00 0.0
1993 60 46 0.11 0.0
1992 71 45 0.00 0.0
1991 67 39 0.01 0.0
1990 63 45 n/a n/a
1989 72 45 0.00 0.0
1988 62 34 0.00 0.0
1987 63 32 0.00 0.0
1986 65 51 0.00 0.0
1985 58 46 0.00 0.0
1984 68 44 0.13 0.0
1983 57 37 0.00 0.0
1982 51 38 1.48 0.0
1981 64 49 0.00 0.0
1980 67 41 0.00 0.0
1979 62 39 0.00 0.0
1978 62 47 0.00 0.0
1977 66 48 0.00 0.0
1976 83 56 0.00 0.0
1975 73 40 0.00 0.0
1974 55 43 0.00 0.0
1973 54 39 0.00 0.0
1972 62 40 0.00 0.0
1971 68 43 0.00 0.0
1970 71 53 0.00 0.0
1969 61 54 2.46 0.0
1968 78 41 0.00 0.0
1967 60 42 0.00 0.0
1966 57 35 0.00 0.0
1965 60 46 0.00 0.0
1964 57 39 0.93 0.0
1963 65 25 0.00 0.0
1962 52 35 0.32 0.0
1961 74 44 0.00 0.0
1960 63 38 0.05 0.0
1959 60 43 0.00 0.0
1958 64 38 0.00 0.0
1957 58 35 0.44 0.0
1956 56 47 0.09 0.0
1955 55 40 0.00 0.0
1954 57 36 0.00 0.0
1953 61 46 0.09 0.0
1952 53 41 0.10 0.0
1951 60 39 0.00 0.0
1950 67 48 0.00 0.0
1949 53 38 0.00 0.0
1948 74 45 0.00 0.0
1947 76 43 0.00 0.0
1946 65 45 0.00 0.0
1945 56 32 0.00 0.0
1944 71 38 0.00 0.0
1943 52 46 1.30 n/a
1942 74 41 n/a n/a
1941 54 43 n/a n/a
1940 69 37 n/a n/a
1939 56 47 0.58 n/a
1938 62 42 n/a n/a
1937 45 28 n/a n/a
1936 75 42 0.00 n/a
1935 61 33 0.00 n/a
1934 61 41 0.00 n/a
1933 46 33 0.00 n/a
1932 60 41 0.00 n/a
1931 60 36 0.00 n/a
1930 65 49 n/a n/a
1929 53 34 0.00 n/a
1928 64 38 0.00 n/a
1927 n/a n/a n/a 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 0.05 n/a
1914 n/a n/a n/a n/a
1913 n/a n/a n/a n/a
1912 n/a n/a n/a n/a
1911 n/a n/a 0.54 n/a
1910 n/a n/a 0.00 n/a
1909 n/a n/a 2.00 n/a
1908 n/a n/a 0.00 n/a
1907 n/a n/a 0.00 0.0
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 n/a n/a n/a n/a
1900 n/a n/a n/a n/a
1899 n/a n/a n/a n/a
1898 n/a n/a n/a n/a
1897 n/a n/a n/a n/a
1896 n/a n/a 0.68 n/a
1895 n/a n/a 0.00 n/a
1894 n/a n/a 0.00 n/a
What's the all-time high for San Luis Obispo on 1/21?
For the date of Jan 21, the highest temperature ever reached in San Luis Obispo history is 83 °F which happened in 1976.
Highest Temperatures in San Luis Obispo on January 21
Rank Temperature Year
1 83 °F 1976
2 79 °F 2014
3 78 °F 1968
4 77 °F 2013
5 76 °F 1947
6 75 °F 1936
7 74 °F 1948
7 74 °F 1942
7 74 °F 1961
10 73 °F 1975
10 73 °F 2021
What's the all-time low for San Luis Obispo on 1/21?
For the date of Jan 21, the lowest temperature ever reached in San Luis Obispo history is 25 °F which happened in 1963.
Lowest Temperatures in San Luis Obispo on January 21
Rank Temperature Year
1 25 °F 1963
2 28 °F 1937
3 32 °F 1987
3 32 °F 1945
5 33 °F 1935
5 33 °F 1933
5 33 °F 2023
8 34 °F 2007
8 34 °F 2002
8 34 °F 1988
8 34 °F 1929
Lowest High Temperatures in San Luis Obispo on January 21
Rank Temperature Year
1 45 °F 1937
2 46 °F 1933
3 51 °F 1982
4 52 °F 1943
4 52 °F 1962
6 53 °F 1952
6 53 °F 1929
6 53 °F 1949
9 54 °F 2008
9 54 °F 1941
9 54 °F 1973
What's the most it has ever rained in San Luis Obispo on 1/21?
For the date of Jan 21, the most precipitation ever recorded in San Luis Obispo history is 2.46 inches which happened in 1969.
All-Time Most Precipitation in San Luis Obispo on January 21
Rank Precipitation Year
1 2.46 inches 1969
2 2.00 inches 1909
3 1.66 inches 2012
4 1.48 inches 2010
4 1.48 inches 1982
6 1.30 inches 1943
7 0.93 inches 1964
8 0.68 inches 1896
9 0.58 inches 1939
10 0.57 inches 1997
Weather Station Details
Years Station Coordinates
1999–2024 San Luis Obispo Airport location
1893–1998 San Luis Obispo Poly location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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