Merced December 21 Weather Records

Daily averages and all-time records for weather in Merced, California for the date of December 21.
December 21 All-Time Records
1899–2024
Highest temperature 68 °F 1919
Lowest temperature 21 °F 1998
Lowest daily high 35 °F 1998
Highest daily low 52 °F 1972
Most precipitation 1.02 inches 1982
December 21 Average Weather
1991–2020 1
Average high 55.1 °F
Average low 36.5 °F
Chance precipitation 32.4%
Merced December 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 60 48 0.00 0.0
2022 45 37 0.00 0.0
2021 45 36 0.00 0.0
2020 44 36 0.00 0.0
2019 62 40 0.00 0.0
2018 63 45 0.00 0.0
2017 51 30 0.00 n/a
2016 57 30 0.00 0.0
2015 51 47 0.34 0.0
2014 65 49 0.00 0.0
2013 56 32 0.00 0.0
2012 57 34 0.06 0.0
2011 55 27 0.00 0.0
2010 56 39 0.03 n/a
2009 55 37 0.17 n/a
2008 50 31 0.25 n/a
2007 48 31 0.00 n/a
2006 46 27 0.46 n/a
2005 60 46 0.00 n/a
2004 47 34 0.00 n/a
2003 53 46 0.06 n/a
2002 57 42 0.03 n/a
2001 53 41 0.08 n/a
2000 63 31 0.00 n/a
1999 61 28 0.00 n/a
1998 35 21 0.00 n/a
1997 54 34 0.00 0.0
1996 49 39 0.70 0.0
1995 55 33 0.00 0.0
1994 45 40 0.00 0.0
1993 43 37 0.00 0.0
1992 54 32 0.00 0.0
1991 56 26 0.00 0.0
1990 44 23 0.00 0.0
1989 41 35 0.00 0.0
1988 52 33 0.50 0.0
1987 53 38 0.00 0.0
1986 n/a n/a n/a n/a
1985 38 31 0.00 0.0
1984 54 35 0.00 0.0
1983 58 46 0.00 0.0
1982 55 40 1.02 0.0
1981 61 48 0.01 0.0
1980 56 39 0.00 0.0
1979 54 42 0.28 0.0
1978 41 25 0.03 0.0
1977 62 37 0.00 0.0
1976 59 28 0.00 0.0
1975 62 28 0.00 0.0
1974 48 34 0.00 0.0
1973 55 42 0.36 0.0
1972 58 52 0.00 0.0
1971 53 27 0.00 0.0
1970 55 40 n/a 0.0
1969 67 38 0.35 0.0
1968 46 25 0.00 0.0
1967 51 28 0.00 0.0
1966 45 37 0.00 0.0
1965 36 31 0.00 0.0
1964 63 50 0.18 0.0
1963 48 38 0.00 0.0
1962 50 40 0.00 0.0
1961 64 40 0.00 0.0
1960 49 45 0.00 0.0
1959 64 37 0.00 0.0
1958 58 39 0.02 0.0
1957 55 39 0.05 0.0
1956 49 32 0.00 0.0
1955 66 49 0.02 0.0
1954 39 34 0.00 0.0
1953 60 35 0.00 0.0
1952 65 42 0.38 0.0
1951 58 25 0.00 0.0
1950 53 47 0.02 0.0
1949 45 23 0.00 0.0
1948 44 39 0.00 0.0
1947 61 40 0.15 0.0
1946 46 35 0.00 0.0
1945 59 38 0.20 0.0
1944 62 41 0.00 0.0
1943 55 47 0.36 0.0
1942 n/a 39 0.00 n/a
1941 59 35 0.03 n/a
1940 60 43 0.00 n/a
1939 54 28 0.00 n/a
1938 53 45 0.18 n/a
1937 51 32 0.00 n/a
1936 49 40 0.00 n/a
1935 62 30 0.00 n/a
1934 54 40 0.00 n/a
1933 48 37 0.00 n/a
1932 49 31 0.31 0.0
1931 51 42 0.35 n/a
1930 52 25 0.00 n/a
1929 61 42 0.00 n/a
1928 50 25 0.00 n/a
1927 58 31 0.00 0.0
1926 50 36 0.15 n/a
1925 50 36 0.00 0.0
1924 50 40 0.11 n/a
1923 55 31 n/a n/a
1922 48 33 0.00 n/a
1921 59 46 0.02 n/a
1920 47 28 0.00 n/a
1919 68 37 0.00 n/a
1918 48 36 0.50 n/a
1917 44 41 0.00 n/a
1916 50 32 n/a n/a
1915 57 31 0.00 n/a
1914 43 32 0.12 n/a
1913 54 40 0.00 n/a
1912 65 29 0.00 n/a
1911 67 38 n/a 0.0
1910 57 42 0.00 0.0
1909 66 34 0.15 n/a
1908 44 27 0.00 n/a
1907 52 34 0.00 n/a
1906 40 38 0.00 0.0
1905 49 32 0.00 n/a
1904 47 37 0.00 n/a
1903 62 30 0.00 0.0
1902 57 29 0.00 n/a
1901 58 27 0.00 n/a
1900 n/a n/a n/a n/a
1899 38 35 0.00 n/a
What's the all-time high for Merced on 12/21?
For the date of Dec 21, the highest temperature ever reached in Merced history is 68 °F which happened in 1919.
Highest Temperatures in Merced on December 21
Rank Temperature Year
1 68 °F 1919
2 67 °F 1969
2 67 °F 1911
4 66 °F 1955
4 66 °F 1909
6 65 °F 1912
6 65 °F 1952
6 65 °F 2014
9 64 °F 1959
9 64 °F 1961
What's the all-time low for Merced on 12/21?
For the date of Dec 21, the lowest temperature ever reached in Merced history is 21 °F which happened in 1998.
Lowest Temperatures in Merced on December 21
Rank Temperature Year
1 21 °F 1998
2 23 °F 1990
2 23 °F 1949
4 25 °F 1951
4 25 °F 1930
4 25 °F 1928
4 25 °F 1968
4 25 °F 1978
9 26 °F 1991
10 27 °F 1908
10 27 °F 2006
10 27 °F 2011
10 27 °F 1971
10 27 °F 1901
Lowest High Temperatures in Merced on December 21
Rank Temperature Year
1 35 °F 1998
2 36 °F 1965
3 38 °F 1899
3 38 °F 1985
5 39 °F 1954
6 40 °F 1906
7 41 °F 1978
7 41 °F 1989
9 43 °F 1993
9 43 °F 1914
What's the most it has ever rained in Merced on 12/21?
For the date of Dec 21, the most precipitation ever recorded in Merced history is 1.02 inches which happened in 1982.
All-Time Most Precipitation in Merced on December 21
Rank Precipitation Year
1 1.02 inches 1982
2 0.70 inches 1996
3 0.50 inches 1918
3 0.50 inches 1988
5 0.46 inches 2006
6 0.38 inches 1952
7 0.36 inches 1973
7 0.36 inches 1943
9 0.35 inches 1969
9 0.35 inches 1931
Weather Station Details
Years Station Coordinates
1998–2024 Merced Municipal Airport location
1899–1998 Merced location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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