DOVER, DELAWARE

Monthly Average Temperature (Degrees Fahrenheit)

(072730)

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
1893 24.13 34.70 40.19 53.40 61.40 71.43 75.27 73.77 65.72 56.73 44.53 38.56 53.32
1894 38.53 34.80 47.77 ----- z ----- z 73.37 76.98 72.17 h 70.15 56.22 m 43.47 o 37.48 54.16
1895 32.58 24.93 40.69 52.60 62.10 73.45 72.29 75.98 70.40 51.03 47.18 39.76 53.58
1896 32.31 36.10 38.16 55.52 69.18 c 70.03 76.16 74.85 a 66.42 53.40 50.85 33.69 54.72
1897 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1898 35.89 34.77 48.10 49.98 61.55 70.98 76.73 76.02 69.82 55.67 b 43.35 35.66 54.88
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 65.70 z 74.07 c 75.42 e 76.30 d 71.98 e 58.09 d 46.06 d 37.05 62.71
1907 37.16 29.50 45.40 47.10 58.79 66.73 77.73 74.53 70.29 k 52.82 a 44.58 e 40.85 52.29
1908 34.89 31.53 47.15 55.98 65.45 73.23 81.15 78.11 68.07 60.69 46.70 37.68 56.72
1909 37.76 43.30 41.77 54.43 63.95 72.98 73.98 72.65 66.88 53.15 49.17 32.19 55.19
1910 32.50 35.48 49.55 58.05 62.31 69.60 77.90 74.10 71.43 59.97 42.62 29.82 55.28
1911 38.53 35.45 40.61 49.55 68.53 71.52 78.79 75.76 69.63 57.60 44.90 41.52 56.03
1912 26.37 31.14 40.56 53.72 64.63 71.17 75.55 73.61 70.68 60.26 48.10 41.03 54.74
1913 44.71 36.29 48.68 54.93 63.40 71.77 77.05 74.11 68.65 59.61 48.92 40.18 57.36
1914 37.52 31.30 38.98 52.85 65.87 73.82 76.10 77.18 65.13 60.29 46.55 34.32 a 54.99
1915 35.97 a 38.75 38.18 57.45 61.15 68.85 75.31 73.45 70.07 58.24 46.30 34.56 54.86
1916 39.37 33.39 b 35.94 51.28 65.21 b ----- z ----- z ----- z ----- z ----- z ----- z ----- z 45.04
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 78.56 v 73.16 68.53 63.98 47.28 32.39 57.07
1920 28.37 31.72 43.52 52.73 59.15 71.40 75.00 75.03 68.55 61.10 46.28 39.73 54.38
1921 37.56 38.61 56.32 58.73 61.90 72.82 79.52 73.06 74.02 57.37 48.88 36.58 57.95
1922 31.19 37.82 44.98 53.65 64.29 73.18 75.32 72.40 68.32 59.18 47.58 36.87 55.40
1923 35.70 c 31.66 43.55 a 51.88 61.47 74.90 73.87 72.92 68.48 a 55.87 44.83 a 44.37 54.96
1924 35.71 33.70 b 42.23 50.67 60.32 69.35 74.13 73.76 63.97 56.68 46.77 36.69 53.66
1925 33.03 42.86 46.40 54.83 59.65 77.42 75.97 72.42 71.93 52.79 44.73 36.77 55.73
1926 34.44 35.32 39.60 51.12 62.37 69.27 76.11 76.58 68.93 56.92 45.10 32.63 54.03
1927 33.74 41.34 45.97 50.80 61.68 68.05 75.77 69.85 a 68.60 59.47 a 51.95 39.98 55.60
1928 35.32 36.12 42.60 51.43 61.10 70.77 77.13 77.61 64.72 58.39 48.28 37.63 55.09
1929 34.61 34.75 49.69 55.95 63.35 72.25 75.92 72.77 69.34 a 54.79 47.90 38.59 c 55.83
1930 36.48 40.68 43.97 50.79 a 66.08 74.57 78.44 74.53 73.62 55.34 46.78 35.31 56.38
1931 36.18 37.43 40.56 52.08 62.47 71.95 79.45 a 75.72 a 73.67 61.34 53.28 a 44.55 57.39
1932 46.27 41.05 a 40.40 51.78 63.11 72.12 76.66 76.21 b 69.55 58.63 45.16 a 40.08 56.75
1933 42.61 38.18 41.98 52.98 66.60 73.93 74.90 75.77 71.65 57.16 b 44.00 36.82 56.38
1934 38.19 22.57 40.15 51.83 65.02 76.38 78.66 73.06 69.85 55.24 49.03 36.63 54.72
1935 33.02 33.71 48.65 51.33 60.53 71.48 77.16 74.29 66.10 57.13 50.38 31.50 54.61
1936 30.34 26.98 48.40 51.30 65.82 72.00 a 76.60 76.85 69.40 58.92 44.58 40.11 55.11
1937 43.35 a 36.32 39.13 52.38 64.29 72.37 76.08 77.05 65.53 55.40 46.33 36.15 a 55.37
1938 35.08 40.25 47.74 56.12 a 62.37 71.40 77.60 77.71 67.45 58.23 49.78 37.89 56.80
1939 35.67 a 41.62 45.35 52.88 66.02 74.78 76.02 76.95 a 69.90 a 58.82 43.97 38.42 56.70
1940 23.24 35.05 38.56 48.35 62.71 73.43 76.60 73.42 66.77 54.55 47.48 41.82 53.50
1941 34.15 33.23 38.27 57.23 66.40 71.38 76.77 74.82 72.67 64.32 50.35 41.71 56.78
1942 34.29 33.25 46.00 56.62 67.92 73.58 78.48 74.31 70.92 59.35 49.32 34.58 56.55
1943 35.52 38.36 45.21 50.77 65.68 78.15 ----- z 76.79 68.50 56.37 46.30 36.50 54.38
1944 36.52 37.45 41.97 52.78 68.32 73.92 77.98 75.90 70.38 56.79 46.80 34.24 56.09
1945 30.37 36.86 54.47 57.08 61.87 73.23 75.69 73.61 72.68 57.03 a 50.70 31.78 a 56.28
1946 37.13 38.71 51.66 53.57 63.52 70.65 74.29 71.56 69.60 60.68 51.50 41.42 57.02
1947 42.35 31.77 ----- z 55.18 63.82 70.58 75.03 76.39 68.98 62.34 44.62 35.55 a 56.97
1948 28.10 34.69 47.32 52.97 64.06 72.12 76.48 74.60 68.20 55.69 52.33 40.08 55.55
1949 43.29 43.66 f 45.77 53.53 64.00 74.02 80.39 76.71 b 67.03 61.98 48.35 c 41.06 59.65
1950 46.57 c 37.09 a 41.58 50.77 61.66 70.65 75.18 a 74.05 65.42 59.34 47.42 33.56 d 55.27
1951 37.47 37.52 44.47 54.30 64.44 d 72.18 77.31 75.29 69.48 60.79 44.95 41.69 56.66
1952 39.79 39.60 42.76 56.08 63.27 75.68 79.47 75.65 69.96 e 55.29 48.32 39.47 57.11
1953 40.48 j 41.98 46.44 54.23 67.44 73.08 78.08 74.94 70.72 a 59.53 47.40 41.21 59.55
1954 35.45 43.57 44.89 d 57.92 62.05 73.45 77.34 75.63 70.58 61.90 45.63 37.73 57.18
1955 33.77 37.16 46.82 57.00 66.60 69.42 81.81 78.45 69.30 60.39 46.10 32.47 56.61
1956 33.18 40.52 42.32 51.77 63.37 73.35 75.34 74.24 67.85 59.58 a 45.87 g 44.87 56.94
1957 32.19 39.84 43.92 58.10 65.84 75.00 76.98 a 74.47 71.37 55.97 50.07 a 41.18 57.08
1958 33.19 30.16 40.82 55.20 63.18 70.25 78.34 74.53 67.95 58.42 49.40 31.34 54.40
1959 34.26 36.80 44.95 a 56.85 68.50 a 74.05 77.31 77.50 71.78 62.82 47.78 41.30 a 57.83
1960 36.77 38.12 35.05 a 59.62 62.71 72.68 75.15 76.27 70.07 57.82 49.33 31.03 55.39
1961 28.35 38.38 45.97 50.95 60.95 72.02 76.95 75.16 74.05 59.13 49.67 36.45 55.67
1962 34.95 34.05 42.08 55.57 66.44 72.97 74.71 e 74.77 66.00 59.32 44.12 32.02 54.75
1963 31.74 30.57 47.05 54.88 62.55 72.42 76.65 73.29 65.27 61.15 50.70 31.29 54.80
1964 36.11 35.07 46.61 51.68 65.97 73.75 77.18 73.58 69.23 55.89 51.02 41.18 56.44
1965 32.95 37.16 42.18 51.95 68.79 72.48 76.26 75.26 71.62 56.77 a 48.67 40.39 56.21
1966 31.47 35.64 46.76 49.37 63.05 73.47 78.73 76.69 67.93 57.16 48.95 37.60 55.57
1967 39.84 33.25 41.69 54.75 58.39 72.87 75.45 73.92 66.65 57.39 43.92 38.84 54.75
1968 30.58 32.41 46.92 55.18 61.53 72.88 77.23 77.63 69.77 60.10 49.05 35.76 55.75
1969 32.87 34.50 41.21 56.63 64.85 74.40 76.27 75.10 69.32 57.56 46.25 34.89 55.32
1970 28.13 35.70 40.15 53.38 65.21 72.13 75.77 76.47 72.30 59.94 49.00 38.55 55.56
1971 31.06 38.27 41.97 52.73 61.19 72.65 75.37 73.31 71.02 64.21 47.23 44.89 56.16
1972 38.00 35.09 43.05 51.52 63.47 69.30 77.11 75.40 69.65 55.40 46.17 43.40 55.63
1973 37.58 35.98 48.34 54.82 61.79 75.28 77.27 77.56 71.93 ----- z 50.55 41.77 57.54
1974 40.56 36.38 46.65 57.73 63.84 69.37 76.11 74.73 67.55 55.52 a 49.62 41.35 a 56.62
1975 40.29 38.82 43.71 49.32 66.08 72.87 75.89 77.69 67.22 61.84 52.75 39.03 a 57.13
1976 32.24 44.69 48.85 56.82 63.58 75.10 75.97 75.06 68.62 54.35 42.70 34.32 56.03
1977 25.00 37.88 50.94 57.55 66.81 71.30 79.00 77.98 72.17 57.55 50.60 38.26 57.09
1978 31.77 26.54 42.53 54.57 62.74 73.13 75.95 77.92 ----- z 58.15 50.25 41.52 54.10
1979 ----- z 26.05 47.95 52.98 65.85 67.95 75.44 76.23 69.33 56.74 52.48 41.08 57.46
1980 35.58 32.62 42.63 a 56.17 66.85 71.07 78.73 78.69 72.82 ----- z 46.25 36.55 56.18
1981 29.10 40.29 42.89 57.98 62.81 74.28 78.05 73.85 68.18 55.32 47.38 35.90 55.50
1982 28.19 37.86 44.27 52.17 65.85 69.88 77.52 73.84 68.63 58.53 51.47 45.32 56.13
1983 36.71 36.59 46.60 53.12 63.11 73.18 79.24 77.79 71.13 59.79 49.55 36.98 56.98
1984 30.58 42.00 39.55 52.95 64.08 75.32 76.23 77.15 67.83 63.95 47.52 46.06 56.93
1985 29.97 38.39 48.10 58.47 67.53 71.63 77.05 75.19 71.25 62.24 55.35 36.13 57.61
1986 36.42 34.98 47.44 54.30 67.82 74.85 78.31 74.66 70.02 61.32 47.83 40.10 57.34
1987 34.06 33.61 47.15 a 53.75 65.85 76.65 81.35 77.35 71.23 55.02 52.18 42.15 57.53
1988 31.63 38.69 45.69 52.70 64.42 73.68 80.81 78.79 67.83 52.85 49.65 38.94 56.31
1989 39.81 38.04 43.22 b 52.32 62.76 75.05 77.18 75.87 70.72 59.66 47.75 27.60 55.83
1990 42.48 45.00 47.77 54.80 61.92 71.85 79.03 76.74 68.82 63.55 50.98 44.18 58.93
1991 38.03 42.46 48.13 56.58 70.79 74.88 78.61 77.29 69.25 59.44 49.18 42.81 58.96
1992 37.98 39.10 42.26 52.58 60.34 69.33 76.85 72.63 68.07 55.40 47.77 39.50 55.15
1993 39.47 34.20 40.85 53.23 64.34 72.62 79.60 76.19 69.70 57.52 48.37 37.05 56.09
1994 28.81 34.62 43.42 59.03 60.40 75.22 78.63 72.81 67.30 56.03 52.86 a 43.24 56.03
1995 39.52 a 34.54 47.16 55.32 63.31 71.73 79.13 77.60 69.38 61.10 44.50 34.32 56.47
1996 34.00 36.21 41.27 54.90 61.32 72.67 74.56 73.61 69.08 57.90 43.20 42.10 55.07
1997 35.29 42.27 46.44 52.17 60.40 69.95 77.11 74.35 68.05 58.21 46.02 40.16 55.87
1998 42.90 42.55 46.52 56.35 65.39 72.05 76.10 75.03 71.85 57.21 48.57 42.81 58.11
1999 38.53 39.75 42.73 54.35 63.02 72.17 79.45 76.82 69.20 57.81 52.65 41.06 57.29
2000 33.85 40.40 48.79 52.65 65.35 73.65 72.77 73.34 67.10 59.21 45.31 a 31.60 55.34
2001 33.84 39.61 41.55 55.57 64.50 73.85 73.65 77.66 67.25 59.52 52.30 44.68 57.00
2002 40.55 42.46 47.82 58.08 63.69 74.13 78.82 78.89 71.13 58.63 46.63 36.50 58.11
2003 30.48 32.18 45.44 53.05 59.48 70.65 77.05 77.92 70.70 57.53 53.93 38.95 55.61
2004 30.03 37.17 47.47 55.97 70.77 72.50 76.53 75.40 70.45 56.98 50.20 40.52 57.00
2005 35.02 37.20 40.65 56.03 59.42 73.43 78.26 78.52 73.28 60.06 52.18 ----- z 58.55
2006 43.66 38.50 46.02 57.82 63.92 73.50 79.79 78.40 68.37 58.11 52.32 45.73 58.84
2007 41.50 31.05 47.48 51.83 65.85 74.40 76.69 77.65 71.37 65.65 48.17 40.21 57.65
2008 38.05 41.17 47.37 56.58 62.44 76.30 78.97 74.84 71.62 58.13 47.33 42.35 57.93
2009 31.44 ----- z ----- z 55.90 64.52 71.57 75.27 77.94 67.92 57.97 51.60 37.34 59.15
2010 34.45 31.88 48.95 58.92 67.85 78.77 81.03 77.81 73.07 60.18 47.65 32.40 57.75
2011 31.08 40.91 45.40 59.40 68.05 76.25 81.95 a 76.18 71.72 58.24 51.92 44.92 58.83
2012 40.79 42.50 53.21 55.60 67.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 48.03
Period of Record Statistics
MEAN 35.19 36.43 44.58 54.16 63.96 72.69 77.06 75.48 69.45 58.31 48.20 38.31 56.12
S.D. 4.67 4.29 3.82 2.66 2.62 2.15 1.91 1.86 2.18 2.77 2.77 4.00 1.25
SKEW 0.03 -0.55 0.17 -0.03 0.29 -0.04 0.35 -0.17 -0.08 0.11 0.14 -0.25 0.16
MAX 46.57 45.00 56.32 59.62 70.79 78.77 81.95 78.89 74.05 65.65 55.35 46.06 58.96
MIN 23.24 22.57 35.05 47.10 58.39 66.73 72.29 69.85 63.97 51.03 42.62 27.60 53.32
NO YRS 106 106 106 107 106 107 106 107 106 105 106 107 93