LA PLATA 1 W, MARYLAND

Monthly Average Temperature (Degrees Fahrenheit)

(185080)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 199808
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1894 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 36.82 36.82
1895 33.16 27.21 43.24 55.63 63.52 a 74.93 73.84 75.47 k 73.52 52.52 46.35 39.96 e 53.08
1896 43.12 w ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1897 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1898 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1899 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1900 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1901 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1902 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1903 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1904 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1905 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1906 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1907 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1908 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1909 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1910 ----- z ----- z 50.00 c 57.08 62.10 a 63.57 i ----- z ----- z 72.00 b 59.44 41.72 c 28.75 k 57.06
1911 39.33 d 38.84 41.53 48.18 h 67.95 ----- z 83.67 v ----- z ----- z ----- z ----- z ----- z 46.91
1912 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1913 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1914 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1915 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1916 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1917 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1918 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1919 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 31.65 u 9999.00
1920 30.90 33.74 45.15 54.03 59.68 70.98 74.45 b 74.74 69.68 60.71 45.25 39.24 54.88
1921 38.21 40.02 56.35 59.78 61.45 73.53 78.45 73.71 74.38 57.58 49.23 38.69 58.45
1922 32.47 39.16 46.37 56.08 65.76 74.67 76.29 72.87 69.30 59.31 47.52 39.21 56.58
1923 37.87 33.52 45.90 52.97 62.11 74.83 a 75.82 75.02 a 69.50 57.65 44.77 45.73 56.31
1924 36.47 34.81 45.58 s 51.76 a 60.89 71.28 75.34 75.00 64.45 57.40 47.12 37.61 55.65
1925 33.89 45.20 47.42 57.70 60.82 77.65 77.27 72.05 73.25 53.16 44.98 37.58 56.75
1926 35.08 37.56 a 41.03 53.87 63.81 69.73 76.48 76.97 69.68 58.27 45.48 35.03 55.25
1927 35.32 43.68 48.24 52.35 63.66 68.48 75.23 70.61 70.23 60.21 52.07 39.97 56.67
1928 38.27 39.07 45.69 53.57 63.50 71.67 78.06 76.90 65.48 60.26 50.03 39.73 a 56.85
1929 36.81 36.12 51.23 59.77 64.61 71.83 76.06 74.48 70.85 57.00 49.67 39.63 57.34
1930 37.71 42.89 45.56 53.62 67.53 74.50 80.06 76.40 76.20 55.97 47.13 35.10 57.72
1931 36.74 38.89 40.94 53.20 63.34 71.52 77.63 74.11 72.73 59.98 52.85 44.68 57.22
1932 46.39 42.86 40.55 52.12 62.23 71.25 75.13 75.77 68.55 57.56 44.43 39.44 56.36
1933 42.87 38.48 42.45 53.82 65.44 72.17 73.81 74.02 70.97 55.66 44.62 38.94 56.10
1934 39.08 24.27 40.76 52.63 64.32 75.00 78.35 71.84 68.73 55.29 49.00 37.90 54.77
1935 32.76 35.98 50.47 51.73 60.26 71.90 77.73 75.16 66.27 57.94 51.00 31.97 55.26
1936 30.87 28.76 50.39 52.05 65.13 71.20 75.98 76.77 70.07 59.50 45.76 g 39.87 56.42
1937 44.21 37.29 41.95 53.73 63.76 73.17 74.87 76.31 64.48 55.24 46.13 37.23 55.70
1938 35.23 41.77 49.87 56.98 62.27 a 70.42 76.15 76.34 66.78 56.50 49.92 38.11 56.69
1939 37.56 41.64 46.58 53.57 65.11 73.62 73.79 76.21 69.85 57.95 44.55 39.82 56.69
1940 24.10 36.36 40.85 49.92 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 37.81
1941 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 64.82 49.32 42.03 52.06
1942 34.58 34.64 46.78 b 58.20 68.06 74.18 78.08 74.19 69.73 59.38 a 49.73 34.42 56.83
1943 37.47 39.50 45.66 51.98 67.47 78.28 77.48 77.56 67.30 55.52 46.02 36.21 56.70
1944 37.50 38.24 42.58 54.10 70.56 73.28 78.34 73.77 g 69.98 a 56.81 b 46.60 a 34.66 54.79
1945 31.97 38.71 55.45 a 58.78 62.02 73.47 74.48 a 73.60 73.39 b 56.48 a 49.23 31.32 56.58
1946 36.06 39.41 51.29 53.10 a 63.92 69.95 74.56 e 70.88 a 67.63 59.31 50.35 40.03 56.38
1947 41.58 31.16 38.79 56.78 65.10 70.67 74.50 c 78.47 69.82 63.92 45.67 34.11 c 55.88
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 67.98 55.53 52.45 40.13 54.02
1949 43.92 45.29 47.60 55.47 65.81 74.07 80.98 76.58 67.68 62.87 a 47.45 b 40.13 58.99
1950 48.93 a 38.08 b 42.61 53.02 64.23 72.97 75.40 73.87 66.77 59.63 46.80 33.42 56.31
1951 39.97 38.77 45.16 54.63 63.21 72.77 76.87 74.00 68.87 61.15 44.10 a 39.53 56.59
1952 40.85 40.03 43.29 56.57 63.82 75.68 79.48 75.53 68.82 54.67 j ----- z ----- z 60.45
1953 42.80 u 41.96 47.03 55.82 69.42 73.23 78.13 74.79 69.02 a 59.37 47.18 40.52 59.68
1954 36.81 43.64 45.97 59.83 61.65 72.43 76.97 74.83 a 72.60 61.19 42.95 35.97 57.07
1955 33.37 37.30 47.15 58.05 65.26 67.88 79.58 77.33 a 68.52 57.07 a 43.97 31.83 a 55.61
1956 33.06 40.34 42.16 52.98 c 63.15 71.60 75.42 72.85 66.25 58.50 46.02 44.77 55.59
1957 31.84 40.54 44.84 58.31 a 65.06 74.65 76.15 a 72.76 69.65 52.02 46.80 40.48 56.09
1958 33.05 30.41 40.27 55.21 b 62.98 69.15 77.50 73.58 66.18 56.97 48.10 31.19 53.72
1959 33.87 38.14 44.85 58.25 b 68.15 72.37 75.65 a 77.05 69.82 59.92 a 45.78 39.47 56.94
1960 36.82 37.26 33.98 59.73 61.23 70.85 73.61 75.63 67.82 56.82 47.85 30.76 54.36
1961 29.06 39.62 47.76 50.70 60.79 71.03 75.55 74.68 72.98 58.19 50.43 34.87 55.47
1962 34.56 35.30 42.52 54.48 66.71 71.28 72.45 73.56 65.83 59.11 44.32 32.58 54.39
1963 32.76 31.66 49.56 56.18 62.84 71.28 75.15 73.89 65.33 59.06 49.60 30.41 b 54.81
1964 36.40 35.10 46.77 54.05 a 65.42 72.72 76.47 73.21 68.37 53.63 49.97 40.32 56.04
1965 34.61 37.61 a 42.21 52.53 a 68.31 69.75 74.52 74.48 70.33 55.92 47.93 40.13 55.69
1966 32.52 35.59 47.17 b 51.37 ----- z 72.50 77.15 a 75.79 65.75 55.21 48.50 36.44 54.36
1967 40.10 33.82 44.47 56.50 58.03 71.30 74.11 74.13 65.22 55.97 43.05 ----- z 56.06
1968 30.95 31.66 48.79 54.96 b 60.90 71.13 75.47 76.15 67.72 59.47 49.22 36.06 55.21
1969 33.06 35.54 41.65 57.52 64.82 a 74.13 77.47 73.27 67.15 55.81 45.60 34.53 55.05
1970 29.02 36.48 41.65 54.75 66.44 72.32 76.02 75.16 72.90 a 61.26 47.93 38.85 56.06
1971 31.08 38.91 43.15 53.05 62.03 73.02 74.75 a 73.11 70.57 63.87 47.27 45.97 56.40
1972 38.18 35.97 45.50 53.73 63.24 68.70 75.37 73.65 a 68.52 55.10 45.25 43.53 55.56
1973 37.15 36.38 50.16 55.23 62.27 74.63 76.69 76.50 70.73 61.12 b 50.15 39.66 57.56
1974 41.18 a 37.93 48.68 58.47 64.05 68.65 74.52 74.90 67.50 55.63 48.38 41.11 56.75
1975 39.63 39.82 44.37 51.40 65.77 71.42 74.21 75.81 65.60 61.13 52.52 38.90 56.71
1976 32.48 46.64 49.97 57.35 62.15 73.50 74.61 72.92 67.48 53.90 41.60 34.26 55.57
1977 23.94 38.93 52.10 58.15 65.69 69.60 77.24 77.02 a 72.10 a 56.39 50.29 a 36.61 56.50
1978 30.27 28.39 42.27 54.09 a 62.21 70.98 74.15 77.31 69.95 56.95 49.42 40.61 54.72
1979 33.85 26.77 49.05 54.08 64.94 68.88 73.48 74.10 68.44 c 56.48 52.35 40.84 55.27
1980 34.58 32.62 43.40 a 57.07 65.06 69.32 76.82 a 77.08 a 73.07 55.89 45.10 37.19 55.60
1981 29.42 40.59 42.68 a 59.38 61.09 b 74.50 b 75.23 72.10 67.08 55.15 47.97 35.35 55.04
1982 28.74 37.95 45.21 53.00 66.00 69.87 75.58 72.00 67.42 57.90 49.90 44.97 55.71
1983 36.03 37.46 47.84 52.65 62.71 71.73 76.35 76.98 68.90 58.58 48.80 34.19 56.02
1984 30.34 43.24 41.18 53.52 63.06 72.77 73.47 ----- z 64.61 c 63.24 45.82 45.76 54.27
1985 30.65 38.61 48.37 59.98 65.87 70.13 75.68 73.63 68.28 60.24 55.38 35.87 56.89
1986 35.81 36.68 47.60 56.15 66.06 73.47 77.03 72.63 68.83 59.27 46.40 38.58 56.54
1987 34.05 35.82 47.19 54.37 65.92 73.66 a 78.35 75.40 69.43 52.82 49.80 40.68 56.46
1988 30.98 38.41 47.13 54.38 64.05 70.90 77.26 77.39 66.38 52.35 48.18 38.18 55.47
1989 39.34 38.16 46.65 54.23 62.23 73.72 74.73 73.15 68.12 58.00 47.88 27.31 55.29
1990 43.53 46.12 50.79 56.45 61.94 71.68 75.95 73.15 66.02 61.18 50.98 44.21 58.50
1991 38.08 43.50 48.24 58.25 69.68 72.25 78.10 75.50 68.48 58.50 48.95 42.34 58.49
1992 38.37 40.83 44.73 55.52 60.18 68.72 75.90 70.58 67.47 54.32 49.43 39.61 55.47
1993 39.60 35.16 42.85 55.42 65.44 71.07 77.74 75.71 69.73 56.84 48.25 36.50 56.19
1994 28.82 36.59 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 32.71
1995 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 61.27 43.87 35.21 46.78
1996 36.43 p 38.50 42.47 58.27 63.47 74.37 74.82 73.66 68.82 58.74 43.17 42.13 58.04
1997 37.23 43.89 49.47 54.15 62.73 70.35 77.40 74.50 68.67 58.00 46.28 40.48 56.93
1998 43.24 43.38 48.45 59.16 a 67.27 72.20 ----- z 76.31 ----- z ----- z ----- z ----- z 58.57
Period of Record Statistics
MEAN 35.61 37.71 45.71 55.19 64.07 72.12 76.13 74.70 68.93 57.91 47.63 38.13 56.18
S.D. 4.73 4.46 3.85 2.53 2.49 2.09 1.72 1.79 2.50 2.79 2.76 3.90 1.04
SKEW 0.18 -0.59 0.06 0.23 0.29 0.34 0.40 -0.24 0.48 0.14 0.11 -0.22 0.34
MAX 48.93 46.64 56.35 59.98 70.56 78.28 80.98 78.47 76.20 64.82 55.38 45.97 58.99
MIN 23.94 24.27 33.98 49.92 58.03 67.88 72.45 70.58 64.45 52.02 41.60 27.31 53.72
NO YRS 76 78 77 77 76 75 74 72 76 77 76 76 64