Climate Summary for December

Station: Morris Plains (285769) State: New Jersey Period of Record: 12/1941-12/1989 (# of years included = 49) Temperature Precipitation EXTREMES EXTREMES Greatest Daily Greatest | Cumulative Chance Chance Day Average Average | Highest Yr Lowest Yr || amount snowfall | average >=.01" >=.1" Max (F) Min (F) | (F) (F) || Inches Yr Inches Yr | precip(in) precip snow 1 | 67 1962 8 1976 || 1.10 1977 3.0 1967 | 0.18 0.08 2 | 72 1962 7 1967 || 1.96 1981 1.3 1952 | 0.27 0.06 3 | 66 1970 6 1976 || 2.30 1986 6.4 1952 | 0.29 0.10 4 | 63 1982* 7 1976 || 1.29 1950 7.5 1957 | 0.33 0.04 5 | 69 1982 10 1966 || 1.36 1968 2.6 1957 | 0.33 0.04 6 | 66 1982 9 1957 || 1.29 1973 2.5 1964 | 0.37 0.12 7 | 67 1982 12 1989* || 1.62 1953 1.5 1949 | 0.31 0.04 8 | 65 1956 9 1964 || 2.16 1950 2.5 1959 | 0.24 0.06 9 | 63 1980 9 1976 || 1.05 1974 3.0 1958 | 0.35 0.15 10 | 71 1946 6 1968 || 1.31 1978 3.5 1962 | 0.39 0.14 11 | 65 1946 -2 1958 || 1.90 1969 1.5 1982 | 0.29 0.08 12 | 62 1979* -1 1988 || 1.02 1960 14.0 1960 | 0.39 0.12 13 | 64 1979 -1 1988 || 2.90 1983 3.4 1942 | 0.39 0.09 14 | 61 1984 4 1976* || 1.57 1941 6.0 1966 | 0.39 0.12 15 | 54 1977 3 1962 || 1.27 1977* 4.0 1981* | 0.31 0.17 16 | 59 1971 6 1961 || 1.06 1987 7.0 1981 | 0.39 0.23 17 | 63 1971 1 1951 || 1.62 1974 4.5 1973 | 0.24 0.10 18 | 60 1984 4 1960* || 1.15 1951 2.0 1942 | 0.27 0.19 19 | 61 1984 3 1960 || 1.15 1986 8.0 1948 | 0.29 0.15 20 | 60 1957 0 1980 || 1.95 1957 3.0 1979* | 0.29 0.14 21 | 61 1957 -2 1981 || 2.28 1973 6.0 1966 | 0.33 0.12 22 | 60 1949 0 1989* || 1.10 1970 5.0 1959 | 0.39 0.20 23 | 61 1984 -5 1960 || 1.65 1983 2.0 1970* | 0.29 0.12 24 | 54 1957 -1 1989 || 1.26 1941 6.0 1963 | 0.24 0.10 25 | 58 1979 -5 1980 || 1.75 1986 10.0 1966 | 0.35 0.10 26 | 66 1964 -7 1980 || 1.64 1945 13.5 1947 | 0.43 0.17 27 | 65 1964 -7 1948 || 1.65 1949 8.2 1947 | 0.24 0.08 28 | 60 1973* -8 1950 || 1.29 1942 5.0 1944 | 0.35 0.13 29 | 64 1982 2 1960 || 1.58 1966 4.0 1967 | 0.43 0.14 30 | 74 1984 2 1961 || 2.60 1948 3.0 1960 | 0.22 0.12 31 | 52 1958* -5 1963 || 1.79 1948 1.0 1948 | 0.22 0.06 * - Asterisk indicates that the record was also reached in previous years.