DURHAM, NORTH CAROLINA

Monthly Average Temperature (Degrees Fahrenheit)

(312515)

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
1899 ----- z ----- z 53.63 59.32 72.66 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 61.87
1900 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1901 41.21 38.39 50.56 52.48 67.38 a 74.52 ----- z ----- z ----- z ----- z ----- z ----- z 54.09
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 83.00 z ----- z ----- z ----- z ----- z ----- z 9999.00
1910 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1911 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
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 53.04 g 59.13 71.10 77.00 79.25 a 77.29 70.37 66.84 48.00 38.40 65.26
1920 36.34 ----- z 50.83 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 36.34
1921 ----- z ----- z 59.40 k 60.62 64.13 75.40 79.23 77.23 78.75 58.82 49.02 36.93 i 67.90
1922 32.89 39.13 a 45.15 55.32 b 67.63 75.70 77.94 74.25 a 71.97 60.65 48.31 c 43.10 57.67
1923 41.18 38.18 49.10 b 54.95 64.95 a 76.48 77.47 76.92 72.20 59.92 g 46.80 46.76 58.64
1924 36.45 a 38.09 a 45.21 55.22 a 64.32 75.03 76.00 76.39 66.28 a 58.10 48.52 40.73 56.69
1925 37.17 a 46.68 50.06 60.00 a 62.70 a 78.13 79.42 75.23 77.12 57.40 45.52 39.00 59.04
1926 36.37 a 45.54 44.03 57.12 66.42 74.02 80.13 80.02 74.70 62.73 46.73 42.29 59.17
1927 39.97 49.82 50.74 57.62 68.63 71.83 77.02 73.97 72.22 61.89 53.00 42.77 59.96
1928 40.85 42.47 50.09 c 56.00 65.07 b 74.07 a 79.63 d 79.03 66.92 63.79 b 50.92 41.58 59.20
1929 41.76 39.87 a 54.84 61.95 68.06 73.33 76.77 75.68 71.02 58.05 52.20 42.50 59.67
1930 42.94 47.23 48.23 58.87 69.63 73.95 80.39 75.32 76.60 57.29 47.42 37.35 59.60
1931 40.52 44.41 45.39 57.28 66.68 76.33 81.98 76.08 75.93 62.68 a 55.27 49.81 61.03
1932 50.10 49.22 47.15 58.65 67.18 76.73 81.00 78.37 72.65 61.71 47.20 c 44.81 61.23
1933 48.06 44.20 50.42 59.29 a 72.69 77.73 78.24 77.60 76.98 61.73 48.73 47.32 61.92
1934 44.65 35.41 48.29 60.87 67.95 78.12 b 81.23 79.33 b 73.18 59.61 53.07 41.84 60.30
1935 40.50 43.73 56.21 57.33 65.77 75.48 78.40 77.35 70.37 60.50 53.02 34.60 59.44
1936 35.98 37.50 53.27 56.28 69.60 74.45 78.84 78.27 72.15 c 62.26 48.57 42.58 59.15
1937 49.56 ----- z 48.69 b 55.31 n ----- z 76.58 r 77.16 77.15 67.43 57.61 46.82 39.92 58.04
1938 40.18 47.46 55.39 58.92 67.58 72.07 75.82 78.11 69.52 58.03 51.72 40.87 59.64
1939 43.23 47.75 52.66 58.08 67.26 77.70 76.37 76.66 72.73 61.77 46.05 42.95 60.27
1940 29.55 a 41.50 46.29 56.13 65.53 75.68 75.94 75.34 67.70 57.77 48.25 44.02 56.98
1941 38.32 36.98 43.92 61.50 68.77 75.10 79.68 77.87 74.05 67.42 49.90 44.23 59.81
1942 38.26 38.52 51.24 59.83 68.19 76.22 78.27 75.10 71.83 61.42 51.23 39.97 59.17
1943 42.11 42.91 48.63 58.37 68.82 78.90 77.60 77.61 67.55 58.11 47.85 40.52 59.08
1944 40.16 44.05 46.97 58.65 70.79 77.00 75.73 74.63 71.98 58.95 48.32 37.08 58.69
1945 39.52 44.00 61.47 63.72 65.21 76.15 77.32 76.19 73.68 58.52 51.67 36.27 60.31
1946 41.87 44.82 56.19 60.45 67.02 74.43 75.77 73.87 70.88 59.50 e 53.06 v 46.23 61.00
1947 46.42 a 36.05 42.15 61.87 68.50 73.77 74.37 a 77.97 71.33 64.27 a 47.12 39.48 58.61
1948 35.13 42.21 54.82 61.18 67.80 a 74.95 79.40 75.63 70.23 58.06 55.58 45.32 60.03
1949 50.45 49.74 a 52.22 b 57.63 68.37 76.68 80.76 77.23 69.48 63.55 49.02 43.88 b 61.58
1950 52.18 45.77 49.31 b 57.68 68.94 74.95 76.35 75.79 69.82 63.00 a 47.60 36.84 b 59.85
1951 41.56 44.32 49.74 58.23 66.61 74.19 f 79.76 80.33 a 71.22 64.26 47.85 44.61 58.95
1952 47.21 45.16 49.06 60.39 b 69.23 80.60 80.92 76.68 a 69.27 55.71 49.72 40.90 60.40
1953 47.25 a 46.55 51.11 59.35 72.55 74.62 79.63 80.83 g 71.70 62.63 a 50.58 44.19 60.02
1954 42.97 48.18 51.34 64.68 64.40 a 75.93 79.74 78.11 74.95 63.80 a 47.23 39.95 60.94
1955 40.52 44.25 54.03 63.15 69.68 71.18 81.16 78.68 72.62 58.92 47.10 36.44 59.81
1956 39.10 45.66 48.97 56.88 67.90 75.30 78.11 76.35 68.43 61.45 48.35 49.90 59.70
1957 41.65 46.54 48.95 62.16 a 68.65 75.92 78.07 a 74.98 71.17 55.05 49.88 45.03 a 59.84
1958 35.84 35.71 45.90 59.53 68.74 74.79 a 80.10 77.55 70.05 59.35 53.70 37.42 58.22
1959 40.58 44.96 48.77 61.45 71.45 75.52 78.06 79.33 a 71.32 62.61 50.55 43.29 60.66
1960 42.37 41.38 38.68 62.57 66.32 75.38 76.74 78.32 70.77 61.39 51.55 37.03 58.54
1961 36.37 45.27 53.81 54.43 64.65 73.43 77.16 76.31 72.98 59.58 52.80 40.61 58.95
1962 40.08 a 45.18 45.55 57.00 71.79 72.60 75.24 74.98 68.08 62.18 48.13 38.97 a 58.32
1963 38.06 36.79 53.82 61.93 67.65 73.35 76.04 c 76.76 68.60 60.56 51.60 34.03 a 58.27
1964 40.58 40.17 51.26 b 60.33 67.79 75.90 75.85 75.19 69.12 55.50 53.27 45.03 a 59.17
1965 40.80 a 43.39 47.39 60.42 72.37 72.35 76.44 77.60 72.85 58.76 51.78 44.02 59.85
1966 36.68 a 41.34 50.02 56.97 66.98 73.10 78.80 a 76.95 a 70.45 57.98 50.32 41.11 58.39
1967 43.71 38.43 52.39 61.95 63.72 a 71.97 76.42 74.65 66.05 58.78 a 46.05 44.89 58.25
1968 36.56 36.02 52.21 58.48 65.08 74.08 77.16 79.18 69.93 61.31 49.50 37.82 58.11
1969 36.21 39.04 44.15 59.98 66.57 a 74.97 78.29 73.94 67.87 60.13 46.72 38.39 57.19
1970 34.28 a 40.38 47.13 60.83 69.73 c 75.38 77.89 76.48 75.23 60.37 48.84 a 43.73 59.19
1971 37.71 40.21 45.00 55.79 b 64.47 74.12 q 76.18 a 75.83 d 71.74 a 63.84 48.95 48.75 a 57.13
1972 43.32 38.10 48.29 55.98 63.47 70.21 a 77.15 75.05 69.37 56.27 47.95 a 44.05 57.43
1973 38.98 38.00 52.37 57.09 a 64.03 75.25 77.03 76.45 73.02 60.71 52.50 d 41.88 a 58.94
1974 48.44 41.79 52.48 58.07 66.18 71.03 76.52 75.19 67.97 55.89 49.18 41.94 58.72
1975 41.39 43.71 45.60 54.60 67.53 73.85 75.52 78.31 69.97 61.45 51.50 40.15 58.63
1976 36.21 47.34 52.27 58.82 63.68 71.98 76.84 74.40 66.42 52.81 42.13 35.79 56.56
1977 27.65 37.55 51.48 60.27 66.85 71.82 79.71 77.47 72.32 56.71 51.70 39.10 57.72
1978 32.48 33.04 45.24 58.33 64.34 75.03 76.66 77.84 72.40 57.65 a 52.82 41.82 57.30
1979 36.82 33.41 49.27 60.12 65.05 70.18 75.29 76.08 68.63 57.35 52.17 41.69 57.17
1980 39.13 35.00 44.81 58.67 66.27 71.12 77.11 77.92 72.73 55.35 45.22 39.31 56.89
1981 31.92 39.70 43.87 58.55 62.19 76.25 70.17 z 70.92 y 63.19 n 55.79 48.85 37.97 50.57
1982 33.02 43.48 48.47 55.53 69.42 73.83 78.02 74.73 71.83 z 59.26 55.83 u ----- z 59.53
1983 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1984 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1985 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1986 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 77.10 70.98 i ----- z ----- z ----- z 77.10
1987 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 80.85 72.98 54.10 51.62 42.84 60.48
1988 ----- z ----- z ----- z ----- z 66.26 71.77 75.74 76.10 64.17 ----- z ----- z ----- z 70.81
1989 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1990 ----- z ----- z ----- z ----- z 67.50 75.53 81.32 78.82 72.18 63.58 53.27 47.40 67.45
1991 41.42 45.25 53.35 61.53 72.92 77.08 82.47 78.45 72.30 60.84 48.88 46.13 61.72
1992 42.03 45.83 50.19 59.35 63.29 73.20 ----- z 74.77 73.53 59.18 52.02 41.21 57.69
1993 ----- z 39.89 46.90 57.03 70.13 a 77.30 84.74 79.94 75.03 59.11 50.33 40.23 61.88
1994 35.00 42.64 51.84 63.30 65.81 78.62 81.27 76.94 69.65 59.02 54.50 47.21 60.48
1995 41.10 39.89 53.24 60.37 68.97 75.03 81.76 81.21 70.75 62.42 45.65 38.18 59.88
1996 37.13 41.83 45.13 59.00 69.03 77.28 79.92 77.19 72.65 61.29 46.82 45.34 59.38
1997 41.94 46.98 56.48 58.22 n 66.73 73.47 81.65 77.70 i 69.66 n 59.76 47.28 40.79 57.23
1998 45.14 f 43.16 48.56 57.38 ----- z 75.87 78.11 75.61 72.63 60.05 49.70 45.26 60.63
1999 42.92 43.31 a 46.07 a 59.03 64.16 c 72.02 78.55 78.45 a 66.55 b 55.95 j 52.86 a 42.60 a 58.78
2000 36.41 d 44.58 e 52.78 b 55.21 a 67.63 a 74.55 74.42 73.68 a 67.09 a ----- z 46.07 a 34.55 a 57.00
2001 37.09 c 42.48 c 45.21 58.75 64.47 73.93 a 74.16 75.58 65.97 55.67 a 52.12 46.55 57.66
2002 39.98 42.89 49.87 61.92 64.66 75.48 78.89 76.55 70.55 59.52 46.12 38.48 58.74
2003 34.56 38.21 49.35 55.42 64.26 71.48 76.31 76.52 68.78 57.44 54.18 38.71 57.10
2004 35.15 37.93 50.48 58.00 70.48 74.58 77.47 72.65 68.83 59.35 51.60 40.79 58.11
2005 41.55 42.09 44.69 57.28 63.21 72.40 80.05 78.63 74.17 60.42 50.12 38.74 58.61
2006 44.10 41.18 48.87 59.83 61.90 73.00 77.16 79.31 66.77 57.18 a 49.42 45.44 58.68
2007 42.84 36.64 52.40 a 56.90 65.58 73.45 76.68 80.48 73.15 63.61 49.87 45.76 b 59.78
2008 37.97 a 44.81 49.45 58.35 63.98 77.35 75.84 75.35 69.98 57.79 46.75 41.71 l 59.78
2009 36.76 40.46 46.47 58.62 67.44 74.10 74.55 77.37 67.68 57.15 51.58 39.29 57.62
2010 34.97 35.25 48.08 59.75 67.94 78.30 79.02 77.26 72.78 l 61.88 k 48.40 32.36 i 58.77
2011 35.02 h 42.46 d 48.12 j 58.46 f 66.32 c 77.02 78.37 d 77.42 e 69.35 d 57.30 f 51.06 e 44.46 f 66.00
2012 43.26 j 43.10 n 56.12 s 57.86 i 70.38 w ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
Period of Record Statistics
MEAN 39.83 41.94 49.46 58.82 67.13 74.78 78.09 76.89 70.96 59.79 49.67 41.71 59.06
S.D. 4.67 4.00 3.79 2.38 2.61 2.13 2.13 1.79 2.88 2.84 2.64 3.61 1.27
SKEW 0.26 -0.16 0.13 0.00 0.27 0.01 0.44 0.17 0.16 0.14 0.00 0.08 0.06
MAX 52.18 49.82 61.47 64.68 72.92 80.60 84.74 81.21 78.75 67.42 55.58 49.90 61.92
MIN 27.65 33.04 38.68 52.48 61.90 70.18 74.16 72.65 64.17 52.81 42.13 34.03 56.56
NO YRS 81 82 83 83 86 84 84 85 83 81 84 81 65