Climate Summary for December

Station: Morris Plains (285769) State: New Jersey Period of Record: 7/1941-7/1990 (# 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 43.5 24.7 | 67 1962 8 1976 || 1.10 1977 3.0 1967 | 0.06 0.18 0.08 2 43.4 23.1 | 72 1962 7 1967 || 1.96 1981 1.3 1952 | 0.18 0.27 0.06 3 45.6 24.5 | 66 1970 6 1976 || 2.30 1986 6.4 1952 | 0.27 0.29 0.10 4 45.9 25.2 | 63 1982* 7 1976 || 1.29 1950 7.5 1957 | 0.40 0.33 0.04 5 45.1 26.2 | 69 1982 10 1989* || 1.36 1968 2.6 1957 | 0.55 0.33 0.04 6 44.9 27.1 | 66 1982 9 1957 || 1.29 1973 2.5 1964 | 0.67 0.37 0.12 7 47.1 26.3 | 67 1982 12 1964* || 1.62 1953 1.5 1949 | 0.84 0.31 0.04 8 45.4 27.0 | 65 1956 9 1964 || 2.16 1950 2.5 1959 | 0.97 0.24 0.06 9 43.6 25.4 | 63 1980 9 1976 || 1.05 1974 3.0 1958 | 1.11 0.35 0.15 10 43.0 25.2 | 71 1946 6 1968 || 1.31 1978 3.5 1962 | 1.24 0.39 0.14 11 42.3 25.1 | 65 1946 -2 1958 || 1.90 1969 1.5 1982 | 1.35 0.29 0.08 12 40.3 23.6 | 62 1979* -1 1988 || 1.02 1960 14.0 1960 | 1.48 0.39 0.12 13 41.5 24.0 | 64 1979 -1 1988 || 2.90 1983 3.4 1942 | 1.67 0.39 0.09 14 40.1 22.7 | 61 1984 4 1976* || 1.57 1941 6.0 1966 | 1.86 0.39 0.12 15 39.1 21.7 | 54 1977 3 1962 || 1.27 1977* 4.0 1981* | 1.99 0.31 0.17 16 40.3 21.9 | 59 1971 6 1961 || 1.06 1987 7.0 1981 | 2.13 0.39 0.23 17 39.7 20.8 | 63 1971 1 1951 || 1.62 1974 4.5 1973 | 2.23 0.24 0.10 18 39.2 20.9 | 60 1984 4 1960* || 1.15 1951 2.0 1942 | 2.29 0.27 0.19 19 37.1 19.4 | 61 1984 3 1960 || 1.15 1986 8.0 1948 | 2.40 0.29 0.15 20 36.9 19.2 | 60 1957 0 1980 || 1.95 1957 3.0 1979* | 2.48 0.29 0.14 21 38.1 19.5 | 61 1957 -2 1981 || 2.28 1973 6.0 1966 | 2.72 0.33 0.12 22 38.0 19.3 | 60 1949 0 1989* || 1.10 1970 5.0 1959 | 2.88 0.39 0.20 23 37.5 19.6 | 61 1984 -5 1960 || 1.65 1983 2.0 1970* | 2.98 0.29 0.12 24 38.5 20.2 | 54 1957 -1 1989 || 1.26 1941 6.0 1963 | 3.05 0.24 0.10 25 39.1 20.3 | 58 1979 -5 1980 || 1.75 1986 10.0 1966 | 3.20 0.35 0.10 26 39.0 20.7 | 66 1964 -7 1980 || 1.64 1945 13.5 1947 | 3.38 0.43 0.17 27 38.5 20.0 | 65 1964 -7 1948 || 1.65 1949 8.2 1947 | 3.52 0.24 0.08 28 37.4 18.5 | 60 1973* -8 1950 || 1.29 1942 5.0 1944 | 3.61 0.35 0.13 29 40.3 21.2 | 64 1982 2 1960 || 1.58 1966 4.0 1967 | 3.81 0.43 0.14 30 39.0 20.9 | 74 1984 2 1961 || 2.60 1948 3.0 1960 | 3.96 0.22 0.12 31 38.0 18.3 | 52 1958* -5 1963 || 1.79 1948 1.0 1948 | 4.08 0.22 0.06 * - Asterisk indicates that the record was also reached in previous years.