BALTIMORE WSO ARPT, MARYLAND

Monthly Average Temperature (Degrees Fahrenheit)

(180465)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 201205
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
1947 40.03 30.75 39.35 54.77 63.92 71.37 76.44 78.37 69.35 63.79 45.75 35.79 55.81
1948 28.44 34.79 46.13 54.23 64.35 73.42 78.15 75.90 69.63 56.29 52.08 39.82 56.10
1949 41.10 42.14 45.37 54.27 65.21 75.53 81.18 77.68 66.83 63.53 47.88 40.29 58.42
1950 45.45 37.04 40.13 50.60 62.85 73.23 76.06 74.06 64.93 58.84 46.15 33.32 55.22
1951 36.89 36.50 43.27 53.80 63.37 71.98 77.24 74.77 68.30 59.87 41.55 38.34 55.49
1952 38.45 39.28 41.40 55.53 62.27 75.10 79.53 a 74.89 67.97 53.13 46.30 37.84 55.97
1953 39.00 39.98 45.52 53.98 67.66 73.73 78.33 a 75.58 67.65 57.61 45.88 39.05 57.00
1954 32.95 40.89 41.90 57.07 60.77 72.38 76.56 73.13 70.13 59.55 43.38 34.95 55.31
1955 32.27 34.39 44.82 55.82 65.13 68.45 81.19 78.11 68.23 58.23 43.12 31.29 55.09
1956 32.65 38.66 40.65 51.62 61.26 71.90 74.66 74.19 65.52 57.95 45.43 43.55 54.84
1957 30.26 39.04 43.47 56.23 64.90 74.75 76.40 73.10 69.53 53.18 47.12 39.10 55.59
1958 32.44 28.86 39.74 54.85 62.87 68.83 77.13 73.47 66.63 56.94 47.12 29.87 53.23
1959 31.95 35.66 42.48 56.58 67.26 73.58 76.73 77.42 70.72 59.40 44.47 38.98 56.27
1960 35.95 36.16 33.42 58.35 61.61 72.08 74.60 76.85 69.05 56.56 46.88 28.39 54.16
1961 27.58 36.96 44.97 49.95 60.26 71.37 76.48 74.63 73.15 57.68 47.60 33.37 54.50
1962 32.40 32.25 42.24 53.85 66.24 72.27 73.61 74.56 64.80 57.69 41.50 28.31 53.31
1963 28.74 27.73 45.90 53.95 61.40 73.08 76.34 72.87 63.98 58.56 47.23 28.74 53.21
1964 33.81 33.21 44.42 50.85 65.29 72.70 76.95 73.47 68.12 53.23 49.80 39.02 55.07
1965 30.74 34.88 39.15 50.33 66.87 70.12 76.82 75.44 70.75 53.85 45.60 38.27 54.40
1966 29.81 30.46 43.31 49.45 61.73 72.88 78.89 76.47 66.68 53.34 46.40 35.56 53.75
1967 37.42 30.66 41.76 54.03 57.02 72.67 75.19 73.32 65.25 55.23 41.97 37.31 53.48
1968 29.18 32.14 46.56 53.97 59.65 72.60 78.13 78.69 70.27 59.63 48.12 34.63 55.30
1969 31.66 34.86 40.63 56.13 65.50 74.90 77.42 76.48 69.45 57.68 46.12 35.24 55.51
1970 27.77 35.39 40.40 53.33 66.61 72.95 77.21 77.34 73.70 61.45 48.60 38.21 56.08
1971 30.00 37.38 41.77 52.63 61.16 73.97 76.45 74.19 70.92 62.87 46.32 43.74 55.95
1972 37.60 34.26 43.55 51.60 62.68 68.05 76.94 75.42 69.75 53.47 43.17 40.32 54.73
1973 34.63 34.27 48.24 53.03 59.55 73.45 75.87 76.89 69.73 58.23 47.27 37.27 55.70
1974 37.90 33.77 45.16 55.27 61.85 68.45 76.45 74.95 67.45 55.27 48.17 40.26 55.41
1975 38.45 39.04 42.11 50.35 66.29 72.97 76.05 77.84 66.02 60.63 51.85 37.23 56.57
1976 30.77 44.03 48.05 56.90 62.08 74.82 75.02 73.94 67.48 52.87 40.88 32.60 54.95
1977 22.89 36.52 49.92 57.87 66.73 71.38 78.95 77.73 72.08 56.00 49.17 35.56 56.23
1978 29.24 27.32 41.68 54.20 62.34 73.10 75.82 78.10 69.70 56.08 48.65 40.13 54.70
1979 33.10 25.50 48.42 53.08 64.65 70.73 75.87 75.65 68.83 55.63 50.62 40.32 55.20
1980 33.84 31.45 41.44 55.70 65.50 71.28 78.16 78.69 72.23 55.27 44.15 35.48 55.27
1981 27.85 38.82 41.90 56.97 62.23 74.28 77.32 74.39 67.73 53.18 46.22 34.45 54.61
1982 25.53 35.82 42.90 50.73 66.06 69.37 77.10 72.95 67.32 56.27 48.43 41.97 54.54
1983 34.60 34.71 45.34 51.73 61.47 72.12 78.66 78.00 69.50 57.24 47.03 33.23 55.30
1984 28.50 41.67 38.16 51.47 61.27 73.37 73.85 74.97 64.75 62.15 43.92 44.11 54.85
1985 29.24 38.68 45.98 57.83 65.08 70.40 76.44 74.44 69.35 58.82 52.35 33.74 56.03
1986 33.15 32.91 45.00 53.45 66.63 74.35 79.32 73.08 68.92 58.90 44.78 38.15 55.72
1987 32.44 34.27 46.19 53.08 64.95 74.43 80.00 76.08 69.27 51.47 47.77 39.79 55.81
1988 28.65 35.83 45.03 51.95 63.97 73.00 80.27 78.52 66.77 51.34 48.07 36.31 54.97
1989 37.85 36.41 43.77 52.47 61.98 73.88 76.02 74.39 68.93 58.24 44.82 25.34 54.51
1990 41.95 42.23 47.56 54.75 62.31 73.27 78.35 74.55 67.28 60.73 49.62 42.16 57.90
1991 35.53 40.68 46.65 55.93 70.52 74.62 79.55 77.71 69.00 57.79 45.78 38.66 57.70
1992 34.55 37.05 41.27 52.00 60.81 70.12 77.40 72.32 67.67 54.27 47.15 38.89 54.46
1993 37.85 31.39 39.39 52.48 64.97 72.23 80.13 76.63 68.83 55.45 46.43 36.19 55.17
1994 27.03 33.98 42.94 59.62 60.61 77.17 80.06 74.13 68.08 56.76 51.87 42.61 56.24
1995 38.97 33.14 47.82 55.15 64.50 74.55 81.48 80.08 70.38 61.03 42.57 33.92 56.97
1996 31.69 35.71 39.87 54.00 60.58 73.25 74.27 73.15 67.80 55.65 40.17 39.63 53.81
1997 32.73 40.93 45.47 51.63 59.47 70.07 77.21 73.98 67.27 56.48 43.65 38.39 54.77
1998 40.87 41.68 45.82 55.18 66.45 71.65 76.58 75.68 71.73 56.23 46.08 41.05 57.42
1999 35.08 37.59 41.76 53.13 64.19 71.21 a 79.98 75.69 68.13 53.72 a 49.78 a 39.06 55.78
2000 32.47 37.27 a 48.47 52.87 64.71 72.78 72.74 73.40 65.28 57.10 44.22 30.03 a 54.28
2001 33.02 38.46 41.74 55.37 63.35 74.02 73.05 a 76.98 65.20 55.92 50.62 a 41.47 a 55.77
2002 39.10 39.25 45.03 56.65 62.23 73.75 78.61 78.42 69.53 56.00 44.37 34.26 56.43
2003 28.29 30.16 43.87 52.67 59.31 69.80 75.60 76.32 67.97 55.06 50.55 36.35 53.83
2004 27.74 34.81 45.56 54.70 69.77 70.92 76.23 74.16 69.35 55.40 48.50 37.48 55.39
2005 34.06 36.68 40.58 55.23 59.21 73.57 77.94 77.61 71.98 57.76 48.07 33.97 55.55
2006 41.53 36.09 45.60 57.43 63.34 73.05 79.82 78.42 65.45 55.13 49.60 42.40 57.32
2007 38.71 29.05 45.15 51.43 65.47 73.72 76.90 77.45 70.55 63.39 46.15 37.79 56.31
2008 35.40 37.05 44.95 55.80 60.47 75.28 77.47 73.60 69.40 55.53 45.37 38.47 55.73
2009 29.26 37.45 43.06 54.88 63.68 71.43 74.65 76.60 66.63 55.31 49.68 34.82 54.79
2010 32.68 30.93 48.45 57.13 67.34 78.82 81.50 77.42 70.97 57.63 47.18 32.42 56.87
2011 30.24 38.48 44.32 57.73 67.21 75.68 81.66 75.92 69.30 56.65 50.53 42.24 57.50
2012 38.26 41.62 53.69 55.31 a 66.44 v ----- z ----- z ----- z ----- z ----- z ----- z ----- z 47.22
Period of Record Statistics
MEAN 33.49 35.71 43.80 54.17 63.55 72.71 77.34 75.71 68.54 57.02 46.73 36.95 55.45
S.D. 4.60 3.98 3.24 2.30 2.73 2.05 2.11 1.91 2.14 2.88 2.83 4.08 1.15
SKEW 0.25 -0.30 -0.04 0.02 0.13 -0.04 0.13 0.23 0.02 0.43 -0.14 -0.58 0.38
MAX 45.45 44.03 53.69 59.62 70.52 78.82 81.66 80.08 73.70 63.79 52.35 44.11 58.42
MIN 22.89 25.50 33.42 49.45 57.02 68.05 72.74 72.32 63.98 51.34 40.17 25.34 53.21
NO YRS 66 66 66 66 65 65 65 65 65 65 65 65 65