BALTIMORE WSO ARPT, MARYLAND

Monthly Average Maximum 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 47.23 38.61 46.84 65.00 73.97 80.20 85.16 86.97 78.23 73.16 52.23 42.00 64.13
1948 34.48 42.97 55.65 63.27 72.97 82.97 86.87 85.16 79.27 63.81 59.53 46.52 64.45
1949 47.97 50.14 53.94 63.37 74.97 84.27 89.94 86.00 75.90 71.42 55.93 47.45 66.77
1950 54.19 43.29 48.81 60.00 71.00 82.57 85.10 84.29 72.87 68.87 56.67 40.77 64.03
1951 46.03 45.32 52.77 64.63 74.74 81.87 88.03 85.77 79.47 69.81 51.10 47.19 65.56
1952 46.97 47.83 50.23 65.13 72.42 86.57 90.83 a 84.52 79.50 65.45 54.97 44.97 65.78
1953 47.10 49.57 54.52 63.77 77.55 84.47 90.17 a 87.23 78.93 70.00 56.63 48.61 67.38
1954 42.32 51.43 52.16 68.87 70.58 83.80 88.74 82.26 81.47 70.03 52.10 43.35 65.59
1955 40.13 44.57 55.35 65.77 76.00 78.33 90.94 86.42 76.53 70.06 53.13 39.65 64.74
1956 39.84 47.59 50.26 62.70 73.16 82.43 83.71 84.16 75.23 66.84 54.63 52.10 64.39
1957 38.58 46.54 51.71 66.73 76.06 84.83 88.16 83.48 78.07 62.94 56.07 47.42 65.05
1958 39.65 36.07 46.48 64.57 72.90 78.73 85.94 82.39 77.80 66.81 56.47 38.84 62.22
1959 42.52 46.57 53.61 67.83 78.03 84.57 85.55 86.29 80.93 68.32 54.37 47.23 66.32
1960 43.45 44.72 42.42 71.83 72.42 83.57 85.42 85.90 77.67 67.26 59.00 39.06 64.39
1961 37.19 45.82 55.19 60.97 71.48 82.50 86.61 84.23 84.20 70.94 57.30 42.39 64.90
1962 41.77 40.21 52.84 66.00 77.94 82.57 84.90 86.16 76.53 69.48 51.17 37.03 63.88
1963 38.00 37.11 57.32 66.87 73.03 83.93 87.84 84.61 74.57 72.74 57.27 36.61 64.16
1964 43.39 41.52 55.84 60.83 78.10 85.00 86.90 83.65 79.83 65.06 61.27 47.45 65.74
1965 40.26 46.00 48.42 60.63 79.00 81.50 87.84 86.06 81.07 65.61 55.97 48.45 65.07
1966 37.61 38.86 55.06 59.00 72.74 85.60 91.52 88.48 76.00 65.00 57.47 43.00 64.20
1967 46.32 40.50 51.26 65.53 67.90 85.30 84.65 81.77 76.60 66.87 51.50 45.39 63.63
1968 37.87 41.52 57.87 66.10 70.48 83.73 87.97 89.42 81.47 69.10 55.97 42.23 65.31
1969 39.03 41.29 50.26 67.80 77.58 84.97 86.55 86.61 80.20 69.61 55.23 41.94 65.09
1970 36.35 44.71 49.10 63.63 78.48 83.57 86.74 88.26 86.10 70.68 56.47 46.00 65.84
1971 37.32 45.14 50.87 65.70 71.39 83.67 86.97 83.52 78.63 70.13 55.07 52.74 65.10
1972 45.42 42.97 52.74 62.73 72.55 77.23 85.32 85.55 78.87 63.26 51.83 47.06 63.79
1973 44.55 43.39 57.26 62.70 69.48 82.57 85.87 86.03 79.20 69.42 57.53 44.87 65.24
1974 45.65 42.93 54.61 67.50 71.71 77.77 87.16 83.68 76.67 67.03 57.93 48.84 65.12
1975 47.19 47.18 50.84 59.70 76.13 82.27 85.23 87.58 74.13 70.39 63.00 45.61 65.77
1976 38.48 55.79 58.58 69.70 72.94 85.10 85.23 84.13 77.87 61.58 51.33 41.77 65.21
1977 30.94 47.32 61.45 70.43 78.74 82.10 89.97 87.84 81.60 65.81 56.10 44.26 66.38
1978 36.55 34.93 50.55 65.47 71.68 84.50 85.39 86.35 80.13 68.87 58.03 50.29 64.39
1979 40.35 33.25 60.48 62.20 74.06 81.23 84.97 84.48 77.43 65.68 60.83 50.23 64.60
1980 40.55 40.55 50.97 66.33 76.61 83.30 89.19 89.10 83.53 65.87 53.93 44.74 65.39
1981 36.90 49.61 52.61 68.60 73.23 84.00 86.74 84.48 77.03 63.45 55.40 41.74 64.48
1982 33.94 44.04 52.10 62.53 77.10 78.43 87.19 83.58 77.20 67.00 58.63 50.65 64.37
1983 41.81 43.50 53.58 61.07 72.77 82.43 90.52 88.65 81.53 66.29 57.10 40.52 64.98
1984 36.87 49.76 45.94 60.77 71.42 84.47 83.16 84.06 75.33 70.58 54.43 53.19 64.17
1985 37.26 47.43 56.32 70.57 76.19 79.97 87.13 83.87 80.43 68.42 59.77 43.16 65.88
1986 42.84 39.21 57.10 63.77 78.77 86.97 89.45 82.19 78.60 68.84 53.63 46.45 65.65
1987 39.58 42.86 57.35 62.67 76.00 85.30 90.00 85.90 78.23 63.32 58.10 47.84 65.60
1988 37.90 44.97 56.29 61.40 73.84 84.50 91.90 88.42 76.80 62.65 58.70 45.81 65.26
1989 47.19 44.25 53.16 63.00 71.48 82.27 84.23 82.68 77.67 69.48 54.63 33.00 63.59
1990 51.32 53.21 57.84 65.53 72.13 84.37 87.65 83.10 77.50 71.94 61.50 52.06 68.18
1991 44.94 51.43 55.71 66.33 82.58 86.30 89.55 88.45 79.93 69.23 55.90 47.74 68.17
1992 43.61 46.41 50.61 62.27 71.23 81.60 86.90 82.71 77.03 65.39 55.67 46.48 64.16
1993 45.74 40.36 47.52 63.27 76.45 83.93 90.68 87.77 78.23 65.29 56.80 43.97 65.00
1994 34.81 42.71 52.39 71.03 72.42 88.57 89.06 83.65 78.33 68.13 62.23 51.39 66.23
1995 46.26 41.89 58.55 66.83 75.10 84.07 91.71 90.42 80.27 72.26 51.37 40.94 66.64
1996 39.52 43.45 49.77 66.27 70.81 84.53 83.90 84.03 77.30 66.65 49.97 47.84 63.67
1997 41.68 50.57 56.19 63.13 72.16 82.03 89.26 85.77 78.83 68.26 52.13 47.32 65.61
1998 49.39 50.32 55.39 67.27 77.23 81.77 88.19 87.23 83.67 67.26 58.37 50.77 68.07
1999 44.61 47.32 51.45 64.30 76.55 81.76 a 91.42 85.68 76.97 65.45 60.10 48.45 66.17
2000 41.39 47.29 a 60.03 62.90 75.65 82.23 81.84 82.00 75.20 69.58 55.03 38.13 64.27
2001 41.26 48.21 51.26 67.20 75.23 84.37 83.32 86.97 75.97 69.16 63.43 50.90 a 66.44
2002 48.61 51.07 55.74 68.13 73.81 85.03 89.29 88.90 80.33 63.94 53.80 42.65 66.78
2003 35.32 37.54 54.61 63.53 67.13 78.60 84.55 84.71 76.60 65.77 60.60 45.55 62.88
2004 34.81 44.34 55.61 64.87 79.65 80.70 84.90 83.03 78.77 64.48 58.17 46.84 64.68
2005 41.55 45.96 49.42 66.73 70.19 83.60 86.90 86.29 83.50 66.42 59.63 42.32 65.21
2006 51.19 45.68 56.77 69.10 75.00 83.67 90.16 88.74 74.23 65.35 58.57 52.52 67.58
2007 47.39 36.79 56.45 61.30 78.06 84.27 87.48 87.65 82.63 74.90 55.63 45.00 66.46
2008 44.52 47.07 55.48 65.77 71.97 86.57 87.71 84.48 78.93 66.45 53.53 47.16 65.80
2009 37.13 48.43 52.68 65.87 73.39 80.63 85.26 85.81 75.27 64.39 58.43 42.52 64.15
2010 40.94 37.71 58.16 69.70 77.32 89.47 92.52 86.84 82.37 68.35 57.50 39.90 66.73
2011 37.77 49.14 53.68 68.13 77.42 86.50 92.94 85.84 77.33 66.32 61.97 52.42 67.46
2012 47.87 51.10 64.19 67.38 a 75.44 v ----- z ----- z ----- z ----- z ----- z ----- z ----- z 57.64
Period of Record Statistics
MEAN 41.84 44.69 53.64 65.07 74.32 83.24 87.49 85.57 78.59 67.58 56.44 45.40 65.29
S.D. 4.85 4.67 3.97 3.00 3.08 2.45 2.55 2.10 2.66 2.83 3.18 4.41 1.25
SKEW 0.22 -0.21 -0.12 0.13 0.14 -0.29 0.20 0.14 0.47 0.17 0.08 -0.33 0.26
MAX 54.19 55.79 64.19 71.83 82.58 89.47 92.94 90.42 86.10 74.90 63.43 53.19 68.18
MIN 30.94 33.25 42.42 59.00 67.13 77.23 81.84 81.77 72.87 61.58 49.97 33.00 62.22
NO YRS 66 66 66 66 65 65 65 65 65 65 65 65 65