LA PLATA 1 W, MARYLAND

Monthly Average Maximum 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 47.29 47.29
1895 42.97 35.57 52.48 65.07 74.03 a 86.93 85.45 87.80 k 85.60 65.94 57.47 50.73 e 63.84
1896 55.50 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 63.93 c 70.50 76.00 a 75.10 i ----- z ----- z 82.86 b 73.23 51.89 c 37.25 k 69.73
1911 48.93 d 48.39 54.42 58.73 h 85.29 ----- z 97.67 v ----- z ----- z ----- z ----- z ----- z 59.26
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 41.40 u 9999.00
1920 39.84 41.55 57.16 65.20 71.65 82.60 86.03 a 83.52 80.30 74.13 55.03 47.35 65.36
1921 47.26 50.18 69.35 72.03 72.13 86.40 88.55 85.58 85.53 71.13 59.60 48.58 69.69
1922 41.00 48.32 56.26 67.33 77.90 85.33 85.94 83.16 80.03 71.35 58.13 48.45 66.93
1923 46.42 42.21 57.81 64.63 76.00 86.86 a 87.23 86.43 a 80.33 69.39 55.20 56.16 67.39
1924 47.74 43.34 55.58 s 64.33 71.84 81.90 86.87 86.52 74.20 71.58 57.40 47.65 66.67
1925 43.68 56.79 59.10 70.87 74.84 91.27 89.10 83.74 84.30 62.42 55.13 45.68 68.08
1926 45.06 46.96 a 52.58 67.23 77.16 80.50 86.32 85.90 78.50 67.94 55.70 42.87 65.56
1927 44.06 53.29 59.26 63.30 73.97 79.33 85.39 79.81 81.80 71.48 62.40 48.29 66.86
1928 48.81 48.83 55.94 65.20 75.06 81.13 87.97 86.26 73.97 71.16 59.43 49.50 a 66.94
1929 46.35 46.07 61.81 71.60 75.71 82.80 87.03 85.84 83.17 69.16 58.53 50.00 68.17
1930 46.81 54.79 58.48 66.70 80.94 86.90 93.06 90.97 89.73 69.55 57.00 44.65 69.96
1931 46.90 50.14 49.58 65.13 74.77 82.10 87.19 83.35 83.53 73.06 64.87 55.84 68.04
1932 56.32 55.03 52.84 65.80 73.74 82.27 86.61 88.61 80.33 69.06 56.10 50.16 68.07
1933 54.10 49.61 53.65 66.17 76.13 84.33 84.55 83.71 81.27 68.26 56.57 49.58 67.33
1934 50.16 35.39 53.68 66.17 76.13 86.07 89.48 81.68 77.47 67.26 60.83 48.06 66.03
1935 41.87 47.04 62.29 62.33 70.48 82.30 87.26 84.48 76.33 70.16 59.57 40.39 65.38
1936 40.19 39.21 62.45 63.63 77.48 81.43 85.87 87.23 79.77 69.94 56.19 d 49.45 66.07
1937 52.71 47.64 53.48 65.10 76.03 82.60 84.52 85.74 75.43 65.97 57.77 47.71 66.23
1938 45.03 52.04 62.77 69.23 71.94 80.47 85.87 86.68 75.73 69.03 63.57 47.55 67.49
1939 47.39 52.14 58.32 65.63 77.52 83.40 83.06 85.81 81.13 69.13 55.97 49.19 67.39
1940 34.52 46.24 51.84 61.43 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 48.51
1941 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 78.06 63.87 52.35 64.76
1942 45.35 45.39 58.87 72.47 80.74 85.50 88.90 83.90 81.07 70.19 61.30 43.48 68.10
1943 47.13 51.32 58.32 65.23 80.13 89.17 89.35 91.26 80.57 67.65 58.90 47.97 68.92
1944 48.10 48.66 53.97 67.13 84.29 85.20 91.26 87.00 80.50 68.16 56.80 43.97 67.92
1945 40.06 48.86 70.61 71.83 74.29 85.13 83.65 85.61 83.23 69.90 59.80 38.84 67.65
1946 45.97 50.39 63.87 66.80 74.71 81.23 86.15 e 81.42 79.43 73.19 62.40 53.13 68.23
1947 51.45 42.75 49.58 70.83 77.77 81.97 85.61 89.71 81.30 76.39 55.37 45.50 a 67.35
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 80.03 66.39 63.37 50.45 65.06
1949 54.13 56.39 59.23 67.97 78.29 84.77 90.87 87.13 79.53 74.27 a 60.68 b 51.16 70.37
1950 59.43 a 46.78 a 55.26 66.23 75.26 85.53 86.84 85.55 75.97 70.81 58.63 43.23 67.46
1951 50.97 49.21 56.61 67.60 76.23 83.97 87.97 84.13 80.60 71.77 54.76 a 48.87 67.72
1952 50.45 50.38 54.55 68.17 75.65 88.20 90.97 85.52 81.10 68.05 j ----- z ----- z 71.66
1953 52.58 s 51.96 57.61 67.37 80.45 84.07 90.65 87.10 81.47 72.65 59.13 50.26 71.16
1954 46.87 55.32 57.23 71.97 72.94 84.63 90.90 86.06 85.93 73.26 53.80 45.42 68.69
1955 42.94 49.04 58.68 70.13 78.42 80.07 90.97 87.03 a 78.43 70.93 a 56.43 42.13 67.10
1956 41.52 51.00 54.32 66.19 c 77.81 84.83 86.26 84.16 78.00 69.45 57.37 55.32 67.19
1957 41.55 50.32 55.68 71.28 a 78.48 86.90 90.16 86.58 80.30 64.35 58.27 50.42 67.86
1958 41.84 39.93 48.94 67.17 a 74.65 80.67 87.55 84.29 79.23 69.16 60.17 41.39 64.58
1959 45.29 49.82 57.97 71.32 b 80.48 85.13 85.17 a 87.71 82.50 70.87 a 57.73 50.55 68.71
1960 45.65 47.90 45.42 74.73 73.48 83.50 85.61 86.71 79.70 68.97 61.17 42.52 66.28
1961 40.84 50.54 60.16 63.33 72.77 83.67 87.16 86.03 85.30 72.81 60.83 44.74 67.35
1962 45.35 44.43 54.58 67.77 80.45 82.93 83.87 85.97 77.13 72.06 55.27 42.55 66.03
1963 43.06 43.82 63.58 70.57 76.19 83.87 88.55 86.94 77.93 75.52 60.87 41.24 b 67.68
1964 48.81 46.00 59.94 66.47 79.19 85.03 87.00 85.00 81.13 66.61 64.17 49.74 68.26
1965 44.97 49.89 a 53.16 64.27 81.42 80.57 84.87 85.26 81.70 68.90 60.07 51.87 67.25
1966 41.35 45.39 60.83 b 63.40 ----- z 85.37 89.77 a 87.71 76.87 68.71 60.97 45.90 66.02
1967 50.65 44.89 56.52 69.90 70.65 84.13 83.90 83.03 77.07 69.06 54.60 ----- z 67.67
1968 42.10 44.93 63.77 70.24 a 73.77 84.00 87.61 88.45 82.00 71.52 59.30 45.16 67.74
1969 42.42 43.32 53.35 70.63 78.00 a 85.63 88.03 84.45 79.07 69.77 56.43 42.81 66.16
1970 39.77 47.46 52.26 67.07 79.81 84.17 86.71 87.65 85.20 72.29 58.17 48.65 67.43
1971 40.10 49.50 54.58 69.27 74.26 83.73 85.73 a 84.68 80.33 72.42 58.40 56.39 67.45
1972 47.58 46.72 56.68 67.57 74.68 78.43 84.65 84.70 a 78.63 66.13 55.40 52.13 66.11
1973 48.23 47.21 60.19 66.73 73.55 84.27 87.52 86.45 81.60 73.55 b 62.47 48.87 68.39
1974 50.53 a 49.14 60.48 72.23 74.84 78.47 85.48 84.58 78.43 69.65 60.30 51.16 67.94
1975 49.81 49.68 54.81 62.60 76.97 81.20 83.52 85.90 74.13 72.26 65.37 48.42 67.05
1976 41.55 59.97 62.00 72.80 73.45 84.33 85.45 84.52 79.27 63.48 53.70 44.29 67.07
1977 34.06 51.07 64.29 72.53 77.71 80.10 87.71 87.57 a 81.93 a 66.87 58.38 a 45.77 67.33
1978 39.16 38.61 53.52 68.33 73.13 81.87 83.45 85.81 80.87 69.32 59.40 51.84 65.44
1979 42.39 35.64 62.77 65.10 75.29 79.50 81.74 82.48 77.00 c 67.48 63.77 51.13 65.36
1980 42.55 42.48 54.30 a 69.37 76.45 80.03 86.73 a 87.27 a 84.87 67.23 55.10 47.03 66.12
1981 39.10 52.93 54.87 a 72.03 72.24 b 83.79 b 83.90 81.32 78.43 66.55 58.47 42.35 65.50
1982 38.00 46.96 56.06 66.73 77.35 77.63 83.77 80.19 77.07 67.74 60.23 52.94 65.39
1983 43.87 47.04 57.26 63.13 72.87 81.23 86.58 87.06 80.37 68.19 59.73 42.48 65.82
1984 38.65 52.17 50.94 64.93 73.58 82.73 81.00 ----- z 74.48 c 72.26 55.87 55.39 63.82
1985 39.16 48.11 59.61 74.03 75.94 79.07 84.77 81.35 78.53 68.65 63.33 45.16 66.48
1986 45.68 43.68 60.42 68.47 77.03 83.33 85.35 80.32 77.10 68.61 55.10 47.06 66.01
1987 42.45 45.89 60.45 65.20 77.77 83.66 a 87.81 84.61 78.07 64.65 61.70 49.58 66.82
1988 40.32 48.41 59.45 66.37 75.00 82.53 87.48 86.45 76.57 63.29 58.67 48.06 66.05
1989 48.58 46.89 57.16 67.07 72.13 81.90 82.87 80.29 77.33 69.32 57.83 36.48 64.82
1990 53.65 57.93 62.77 69.00 71.81 81.47 84.48 81.03 75.50 71.58 63.03 54.58 68.90
1991 47.29 55.32 58.71 70.93 80.00 82.33 87.26 84.90 78.53 70.13 59.03 52.58 68.92
1992 47.84 50.66 55.23 67.27 70.97 78.40 83.81 78.55 75.83 64.23 58.13 46.87 64.81
1993 47.58 44.71 52.81 67.60 75.94 81.33 86.90 84.87 78.07 67.13 59.20 45.06 65.93
1994 37.32 46.96 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 42.14
1995 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 71.81 52.80 43.13 55.91
1996 42.58 47.52 53.42 70.30 72.77 84.03 82.68 81.94 76.53 68.39 51.67 50.39 65.18
1997 46.03 52.86 60.29 65.70 74.58 80.30 86.94 83.77 77.43 67.39 54.03 48.65 66.50
1998 51.06 52.07 58.16 70.70 76.42 80.20 ----- z 85.58 ----- z ----- z ----- z ----- z 67.74
Period of Record Statistics
MEAN 45.21 48.04 57.35 67.78 75.92 83.10 86.58 85.10 79.74 69.64 58.52 47.80 67.08
S.D. 4.89 4.88 4.49 3.05 3.07 2.63 2.42 2.50 3.13 3.01 3.14 4.20 1.28
SKEW 0.28 -0.34 0.27 0.16 0.63 0.32 0.24 -0.28 0.51 0.05 0.09 -0.14 0.21
MAX 59.43 59.97 70.61 74.73 85.29 91.27 93.06 91.26 89.73 78.06 65.37 56.39 70.37
MIN 34.06 35.39 45.42 61.43 70.48 77.63 81.00 78.55 73.97 62.42 51.67 36.48 64.58
NO YRS 77 78 77 77 76 75 74 73 76 77 77 76 67