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Half Moon Bay January Monthly Average Temperatures

A time series of monthly average January temperatures in Half Moon Bay, California from 1940–2022.
Hottest January in Half Moon Bay History
The hottest January in Half Moon Bay, California history occurred in 2015, when the average temperature of 54.9 °F was 3.5 °F higher than normal.
Coldest January in Half Moon Bay History
The coldest January in Half Moon Bay, California history occurred in 1949, when the average temperature of 42.8 °F was 8.6 °F below normal.
Half Moon Bay Average January Temperature by Year
Year Temperature (°F) to Normal (°F)
2022 51.3 -0.1
2021 50.9 -0.5
2020 50.1 -1.3
2019 53.0 1.6
2018 53.2 1.8
2017 50.0 -1.4
2016 53.1 1.7
2015 54.9 3.5
2014 52.6 1.3
2013 50.6 -0.7
2012 51.0 -0.4
2011 52.0 0.6
2010 52.6 1.2
2009 53.6 2.2
2008 48.2 -3.2
2007 46.1 -5.3
2006 50.7 -0.7
2005 50.5 -0.9
2004 50.6 -0.8
2001 50.1 -1.3
2000 51.4 0.0
1999 50.9 -0.5
1998 53.1 1.7
1997 51.9 0.5
1996 52.4 1.0
1995 53.2 1.8
1993 49.2 -2.2
1992 51.4 0.0
1991 48.1 -3.3
1990 51.4 0.0
1988 50.8 -0.6
1987 49.5 -1.9
1986 54.4 3.0
1985 49.6 -1.8
1984 52.2 0.8
1983 52.8 1.4
1982 48.8 -2.6
1981 53.2 1.8
1980 51.7 0.3
1979 49.2 -2.2
1978 54.1 2.7
1977 51.1 -0.3
1976 50.8 -0.6
1975 49.7 -1.7
1974 48.7 -2.7
1973 49.4 -2.0
1972 47.2 -4.2
1971 51.0 -0.4
1970 54.0 2.6
1969 47.3 -4.1
1968 51.9 0.5
1967 51.8 0.4
1966 50.2 -1.2
1965 51.2 -0.2
1964 49.2 -2.1
1963 47.9 -3.5
1962 50.8 -0.6
1961 53.9 2.5
1960 49.6 -1.8
1959 52.3 0.9
1957 47.4 -4.0
1956 50.7 -0.7
1955 46.6 -4.8
1954 47.2 -4.2
1953 53.7 2.3
1952 47.3 -4.1
1951 49.2 -2.2
1949 42.8 -8.6
1948 52.1 0.7
1947 46.3 -5.1
1946 48.7 -2.7
1945 48.6 -2.8
1944 50.9 -0.5
1943 49.7 -1.7
1942 51.6 0.2
1941 52.6 1.2
1940 52.1 0.7