San Luis Obispo December 31 Weather Records

Daily averages and all-time records for weather in San Luis Obispo, California for the date of December 31 (New Year's Eve).
December 31 All-Time Records
1893–2024
Highest temperature 85 °F 1980
Lowest temperature 30 °F 2000
Lowest daily high 50 °F 1987
Highest daily low 56 °F 1942
Most precipitation 1.80 inches 1933
December 31 Average Weather
1991–2020 1
Average high 64.9 °F
Average low 40.8 °F
Chance precipitation 28.0%
San Luis Obispo December 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 63 49 0.00 n/a
2022 59 53 1.22 n/a
2021 58 39 0.00 n/a
2020 63 42 0.01 n/a
2019 68 40 0.00 0.0
2018 58 35 0.00 0.0
2017 62 44 0.00 n/a
2016 58 40 0.00 n/a
2015 63 36 0.00 0.0
2014 56 33 0.00 0.0
2013 70 36 0.00 0.0
2012 58 34 0.00 0.0
2011 75 46 0.00 0.0
2010 55 35 0.00 n/a
2009 65 39 0.01 n/a
2008 72 42 0.00 n/a
2007 68 41 0.00 n/a
2006 57 39 0.00 n/a
2005 63 46 1.44 n/a
2004 57 44 0.00 n/a
2003 61 37 0.00 n/a
2002 60 45 0.30 n/a
2001 n/a n/a n/a n/a
2000 71 30 0.00 n/a
1999 59 39 0.00 n/a
1998 75 47 0.00 0.0
1997 78 43 0.00 0.0
1996 65 54 0.46 0.0
1995 67 47 0.00 0.0
1994 59 33 0.00 0.0
1993 68 41 0.00 0.0
1992 57 39 0.00 0.0
1991 60 38 0.02 0.0
1990 53 35 0.00 0.0
1989 70 39 0.00 0.0
1988 56 32 0.30 n/a
1987 50 31 0.00 0.0
1986 72 43 0.00 0.0
1985 63 50 0.18 0.0
1984 59 34 0.00 0.0
1983 65 49 0.00 0.0
1982 62 33 0.00 0.0
1981 57 49 0.07 0.0
1980 85 47 0.00 0.0
1979 64 51 0.23 0.0
1978 55 39 0.00 0.0
1977 61 45 0.00 0.0
1976 59 49 1.52 0.0
1975 61 38 0.00 0.0
1974 55 40 0.00 0.0
1973 58 44 0.00 0.0
1972 59 36 0.00 0.0
1971 50 40 0.00 0.0
1970 59 36 0.00 0.0
1969 62 34 0.00 0.0
1968 65 41 0.00 0.0
1967 65 37 0.00 0.0
1966 58 34 0.00 0.0
1965 51 42 0.68 0.0
1964 53 36 0.52 0.0
1963 75 44 0.00 0.0
1962 62 36 0.00 0.0
1961 67 37 0.00 0.0
1960 65 34 0.00 0.0
1959 56 32 0.00 0.0
1958 72 42 0.00 0.0
1957 60 43 0.00 0.0
1956 71 34 0.00 0.0
1955 55 38 0.29 0.0
1954 61 45 0.00 0.0
1953 72 35 0.00 0.0
1952 52 38 1.46 0.0
1951 53 34 0.32 0.0
1950 58 41 0.00 0.0
1949 64 34 0.00 0.0
1948 58 44 0.00 0.0
1947 58 30 0.00 0.0
1946 62 42 0.00 0.0
1945 71 55 0.00 0.0
1944 59 39 0.00 0.0
1943 58 40 0.00 0.0
1942 64 56 0.00 n/a
1941 53 40 0.14 n/a
1940 64 44 0.00 n/a
1939 62 46 0.00 n/a
1938 69 41 n/a n/a
1937 66 53 0.00 n/a
1936 51 40 1.05 n/a
1935 61 46 0.01 n/a
1934 61 46 0.00 n/a
1933 61 52 1.80 n/a
1932 62 34 0.00 n/a
1931 59 48 0.45 n/a
1930 56 36 0.61 n/a
1929 66 35 0.00 n/a
1928 65 51 0.00 n/a
1927 59 47 0.02 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 0.00 n/a
1915 n/a n/a n/a n/a
1914 n/a n/a 0.00 n/a
1913 n/a n/a 0.93 n/a
1912 n/a n/a n/a n/a
1911 n/a n/a n/a n/a
1910 n/a n/a n/a n/a
1909 n/a n/a 0.85 n/a
1908 n/a n/a 0.25 n/a
1907 n/a n/a 0.30 n/a
1906 n/a n/a 0.06 0.0
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 n/a n/a
1895 n/a n/a 0.00 n/a
1894 n/a n/a 0.00 n/a
1893 n/a n/a 0.00 n/a
What's the all-time high for San Luis Obispo on 12/31?
For the date of Dec 31, the highest temperature ever reached in San Luis Obispo history is 85 °F which happened in 1980.
Highest Temperatures in San Luis Obispo on December 31
Rank Temperature Year
1 85 °F 1980
2 78 °F 1997
3 75 °F 1998
3 75 °F 2011
3 75 °F 1963
6 72 °F 2008
6 72 °F 1958
6 72 °F 1953
6 72 °F 1986
10 71 °F 1956
10 71 °F 1945
10 71 °F 2000
What's the all-time low for San Luis Obispo on 12/31?
For the date of Dec 31, the lowest temperature ever reached in San Luis Obispo history is 30 °F which has happened 2 times, most recently in 2000.
Lowest Temperatures in San Luis Obispo on December 31
Rank Temperature Year
1 30 °F 2000
1 30 °F 1947
3 31 °F 1987
4 32 °F 1959
4 32 °F 1988
6 33 °F 1982
6 33 °F 1994
6 33 °F 2014
9 34 °F 1956
9 34 °F 1951
9 34 °F 1949
9 34 °F 1969
9 34 °F 2012
9 34 °F 1932
9 34 °F 1966
9 34 °F 1960
9 34 °F 1984
Lowest High Temperatures in San Luis Obispo on December 31
Rank Temperature Year
1 50 °F 1971
1 50 °F 1987
3 51 °F 1936
3 51 °F 1965
5 52 °F 1952
6 53 °F 1990
6 53 °F 1964
6 53 °F 1941
6 53 °F 1951
10 55 °F 1978
10 55 °F 1974
10 55 °F 1955
10 55 °F 2010
What's the most it has ever rained in San Luis Obispo on 12/31?
For the date of Dec 31, the most precipitation ever recorded in San Luis Obispo history is 1.80 inches which happened in 1933.
All-Time Most Precipitation in San Luis Obispo on December 31
Rank Precipitation Year
1 1.80 inches 1933
2 1.52 inches 1976
3 1.46 inches 1952
4 1.44 inches 2005
5 1.22 inches 2022
6 1.05 inches 1936
7 0.93 inches 1913
8 0.85 inches 1909
9 0.68 inches 1965
10 0.61 inches 1930
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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