GLENN DALE BELL STN, MARYLAND

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(183675)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 200705
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
1921 25.06 26.75 41.50 a 45.50 50.87 59.67 67.19 58.97 61.43 40.16 37.48 a 26.60 a 45.10
1922 20.81 27.29 33.35 41.66 a 51.67 a 62.90 65.35 60.74 55.50 43.61 32.60 26.68 43.51
1923 25.57 a 21.15 a 30.68 38.37 46.81 61.47 62.71 61.84 57.30 40.58 32.47 33.10 a 42.67
1924 22.43 a 23.48 31.13 36.53 48.61 59.10 60.97 60.87 52.62 a 39.13 32.30 24.68 40.99
1925 20.26 28.96 32.39 40.77 42.74 61.03 62.29 57.45 59.34 a 41.87 31.07 26.58 42.06
1926 20.29 25.46 25.77 36.23 45.74 54.27 63.19 64.42 58.10 43.84 29.77 22.32 40.78
1927 23.26 ----- z 31.87 36.00 49.77 54.10 61.97 57.29 52.37 44.65 38.17 26.52 43.27
1928 20.81 24.93 29.58 36.63 46.90 58.57 62.97 64.03 52.23 43.35 36.00 23.32 41.61
1929 21.74 19.68 35.52 42.10 49.90 57.70 61.77 58.42 54.73 39.52 36.93 25.84 41.99
1930 23.81 26.64 28.58 36.23 50.00 57.67 63.19 57.74 57.83 36.87 32.57 23.23 41.20
1931 22.65 25.18 30.90 38.90 49.71 59.27 66.03 63.26 59.20 42.97 38.37 31.29 43.98
1932 35.19 28.21 27.90 35.70 49.45 58.50 61.52 59.52 53.87 43.97 30.60 23.97 42.37
1933 29.42 25.57 29.87 40.20 53.71 58.33 61.32 63.19 59.17 40.39 31.63 25.87 43.22
1934 26.90 8.50 26.65 38.43 51.42 63.23 66.68 61.32 59.27 41.45 35.23 25.42 42.04
1935 21.16 21.46 35.87 38.50 46.84 58.27 65.55 63.13 52.53 41.71 39.67 22.13 42.23
1936 19.58 15.03 35.06 37.50 50.45 59.00 64.00 64.03 57.03 a 45.26 31.50 27.65 42.18
1937 34.32 25.79 27.10 a 39.80 48.87 61.90 63.39 65.00 50.33 42.77 32.20 23.45 42.91
1938 23.87 28.54 33.45 41.00 50.19 58.23 64.90 63.10 55.70 40.17 a 33.70 25.74 43.22
1939 24.32 28.50 32.52 38.80 49.97 61.20 62.84 64.87 55.80 43.29 29.50 27.16 43.23
1940 9.97 24.10 28.26 36.20 50.35 60.03 61.74 61.90 50.03 40.35 34.53 29.42 40.58
1941 23.42 21.54 24.94 40.63 47.06 58.10 65.16 59.39 54.13 47.52 30.50 27.35 41.65
1942 21.55 21.93 32.65 39.63 53.19 60.67 64.32 61.81 55.07 45.45 35.10 23.26 42.89
1943 24.94 23.50 30.19 35.37 51.94 65.07 63.26 60.55 50.33 41.55 29.50 20.32 41.38
1944 22.48 24.72 28.90 38.17 54.42 59.43 61.68 60.81 57.53 40.81 32.73 22.03 41.98
1945 20.32 25.07 37.52 42.80 47.32 58.83 64.42 59.77 60.50 40.26 36.53 21.10 42.87
1946 24.84 25.46 36.90 38.67 51.58 57.37 60.52 57.87 54.30 44.71 36.50 26.81 42.96
1947 29.81 17.57 23.94 40.90 49.65 57.20 61.39 64.42 56.50 47.13 32.20 21.26 41.83
1948 16.10 21.72 33.39 41.93 51.42 58.57 63.65 60.48 53.03 41.58 38.83 25.65 42.20
1949 30.58 30.29 32.29 38.17 50.55 60.63 67.77 62.94 51.90 49.35 31.60 26.58 44.39
1950 35.29 26.93 27.32 36.24 a 50.35 57.23 62.32 60.94 54.47 45.00 31.93 22.16 42.52
1951 24.84 24.93 30.90 39.03 48.13 59.03 63.55 60.45 54.17 46.52 29.67 27.23 42.37
1952 28.65 27.17 30.13 42.53 49.19 61.00 64.83 a 62.16 52.03 37.97 34.27 26.61 43.05
1953 29.13 27.04 a 32.84 41.07 55.94 58.97 62.13 59.84 52.73 41.06 30.43 27.06 43.19
1954 21.84 27.11 29.81 43.60 47.06 57.67 60.29 61.77 55.80 46.84 31.48 a 25.42 42.39
1955 22.32 23.32 33.26 44.07 52.29 54.93 68.29 67.16 57.17 43.93 a 31.67 20.68 43.26
1956 22.84 28.48 29.87 38.73 47.74 58.37 64.42 61.45 53.77 47.16 34.73 33.03 43.38
1957 20.71 30.07 a 31.42 43.83 51.29 62.37 60.53 a 58.81 58.83 40.13 35.70 29.19 43.57
1958 23.10 19.79 30.61 42.20 50.45 56.63 66.48 62.13 52.67 43.52 34.73 18.29 41.72
1959 19.68 22.32 28.71 42.80 53.77 58.57 64.45 64.71 55.17 47.42 32.63 26.61 43.07
1960 25.90 26.38 20.42 42.07 47.90 56.57 60.45 64.35 56.13 42.71 31.73 14.81 40.79
1961 13.45 25.00 32.32 36.57 46.74 56.93 62.16 61.45 58.53 42.52 38.90 25.29 41.66
1962 22.55 24.00 28.94 40.63 52.74 59.97 60.81 60.42 52.03 44.90 31.23 20.61 41.57
1963 19.26 17.39 32.90 39.20 48.00 57.90 61.55 59.58 51.27 41.32 37.70 19.48 40.46
1964 21.71 23.62 32.61 39.80 50.26 58.63 64.10 60.65 53.67 38.10 34.07 28.65 42.15
1965 20.81 23.43 29.10 39.07 53.35 57.23 62.48 61.48 57.27 39.55 34.07 26.06 41.99
1966 21.13 24.07 29.74 37.57 49.13 57.83 63.00 61.61 52.97 39.37 a 33.93 26.19 41.38
1967 26.97 20.61 30.77 40.10 44.39 56.97 63.16 61.94 50.83 40.29 29.90 25.48 40.95
1968 17.00 18.72 31.23 37.50 45.94 57.53 62.42 62.03 51.53 44.52 37.11 b 26.39 40.99
1969 24.06 27.25 29.35 42.77 50.32 61.07 66.06 60.94 54.93 41.29 33.33 25.68 43.09
1970 17.00 23.32 29.23 38.73 51.90 59.23 64.13 63.00 57.63 48.81 37.20 27.81 43.17
1971 19.84 26.36 29.00 35.30 47.84 61.00 62.55 61.13 59.83 52.74 34.43 33.52 43.63
1972 27.19 24.07 32.29 37.70 50.23 57.13 64.84 61.16 56.87 41.68 33.43 32.45 43.25
1973 24.84 23.00 37.65 41.93 48.97 63.27 64.29 65.13 58.13 45.26 36.30 28.42 44.77
1974 30.03 23.25 34.48 42.87 50.77 57.03 62.87 64.26 55.67 38.32 34.00 29.29 43.57
1975 26.58 28.32 32.77 38.14 a 53.90 60.60 63.90 65.03 55.27 48.13 37.87 28.13 a 44.89
1976 21.42 30.31 34.77 40.67 49.97 60.77 60.52 56.10 b 52.97 39.14 b 25.68 b 20.73 a 41.09
1977 12.45 21.96 b 36.81 39.77 49.42 54.37 60.90 b 62.71 57.60 42.87 40.53 26.23 42.13
1978 20.39 16.54 28.90 38.62 a 48.61 56.40 58.52 64.52 54.53 40.23 36.77 26.03 40.84
1979 23.00 14.79 32.90 40.80 51.03 54.77 62.35 62.19 55.43 42.35 37.50 27.71 42.07
1980 24.81 20.21 30.03 40.97 50.77 53.23 61.61 63.97 57.33 41.32 32.40 24.61 41.77
1981 18.52 28.00 28.52 44.20 47.58 61.70 63.55 58.94 53.77 39.10 a 33.57 25.16 41.88
1982 15.94 25.86 31.42 36.63 50.13 57.60 61.26 57.39 51.77 42.71 36.67 33.97 41.78
1983 25.84 24.07 35.68 39.87 47.52 58.00 61.94 62.65 51.77 43.10 33.63 23.19 42.27
1984 17.13 28.83 29.16 40.03 50.00 59.57 62.06 61.90 49.97 a 48.74 32.13 33.16 42.72
1985 20.16 26.39 33.74 41.40 52.13 56.77 63.26 61.32 53.33 46.84 43.20 22.61 43.43
1986 21.16 25.07 31.00 39.87 50.13 58.33 65.35 60.68 57.10 45.90 33.17 26.39 42.85
1987 22.32 21.54 30.23 40.23 50.81 60.13 65.84 62.74 56.90 36.35 34.80 28.55 42.54
1988 16.61 25.72 30.19 38.93 49.42 56.80 64.32 65.19 ----- z 37.13 33.93 ----- z 41.83
1989 25.13 26.29 31.35 37.87 48.65 62.70 64.29 63.61 c 56.07 43.97 33.70 14.06 42.31
1990 30.03 29.86 33.61 40.13 49.29 58.67 65.06 62.74 54.97 47.71 33.87 30.42 44.70
1991 24.29 27.82 35.23 42.17 55.39 59.13 66.65 64.52 55.47 42.58 34.07 30.03 44.78
1992 25.61 27.52 30.26 40.80 46.77 56.07 64.97 59.84 56.47 40.45 36.47 31.29 43.04
1993 24.84 19.21 26.13 36.87 50.06 56.27 64.71 63.68 56.80 43.42 33.23 25.71 41.74
1994 17.97 21.89 29.42 43.80 46.32 62.37 68.87 60.61 54.13 39.29 37.83 28.52 42.59
1995 27.77 21.82 34.13 38.97 50.55 62.40 68.10 66.39 57.23 48.58 32.90 25.23 44.51
1996 24.06 26.79 28.77 42.27 50.58 62.40 64.35 63.39 58.43 45.03 31.53 32.90 44.21
1997 26.10 32.18 33.94 38.90 45.94 57.63 63.13 60.10 54.27 43.06 33.67 27.65 43.05
1998 30.87 33.39 37.26 42.77 55.29 60.97 63.55 63.13 59.90 45.55 34.40 32.19 46.61
1999 25.52 26.89 30.26 38.97 48.68 59.20 66.77 63.71 56.80 40.06 36.70 26.45 43.33
2000 22.06 24.38 33.43 a 40.15 c 51.97 a 61.53 61.23 62.65 54.70 40.58 30.33 18.23 41.77
2001 19.55 23.93 29.00 c 39.70 49.42 60.90 60.52 65.42 52.47 39.97 35.27 29.77 42.16
2002 25.39 25.50 31.81 45.03 49.39 61.30 65.90 65.77 56.57 45.52 33.43 22.13 43.98
2003 18.39 20.50 ----- z 40.83 51.39 60.03 66.19 67.35 58.13 40.68 38.97 24.87 44.30
2004 17.29 22.45 34.29 44.07 58.77 60.13 66.42 64.58 58.63 43.55 36.63 25.29 44.34
2005 23.65 23.82 28.10 39.17 44.94 61.30 66.94 67.19 57.83 48.26 34.90 24.32 43.37
2006 30.48 25.11 33.55 42.90 49.77 59.70 66.68 64.77 54.63 40.95 j ----- z 29.39 45.70
2007 28.52 19.14 28.27 p 38.47 51.35 n ----- z ----- z ----- z ----- z ----- z ----- z ----- z 28.71
Period of Record Statistics
MEAN 23.21 24.31 31.30 39.90 49.89 59.01 63.65 62.12 55.33 42.91 34.17 25.96 42.64
S.D. 4.72 4.03 3.32 2.42 2.65 2.33 2.16 2.43 2.70 3.28 2.95 3.98 1.18
SKEW 0.11 -0.87 -0.02 0.14 0.34 -0.04 0.25 -0.12 -0.04 0.42 0.24 -0.35 0.54
MAX 35.29 33.39 41.50 45.50 58.77 65.07 68.87 67.35 61.43 52.74 43.20 33.97 46.61
MIN 9.97 8.50 20.42 35.30 42.74 53.23 58.52 56.10 49.97 36.35 25.68 14.06 40.46
NO YRS 87 86 85 87 86 86 86 86 85 85 85 85 82