DOVER, DELAWARE

Monthly Average Minimum 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 16.03 26.79 31.16 43.90 51.97 62.70 66.71 65.84 57.70 48.06 37.00 30.42 44.86
1894 30.97 27.93 38.06 ----- z ----- z 63.53 68.35 64.81 d 63.27 50.71 j 36.40 j 30.61 48.44
1895 25.48 16.89 32.74 43.53 53.35 64.67 64.23 67.23 62.20 41.26 40.03 32.90 45.38
1896 26.10 28.41 30.42 46.63 59.39 c 62.30 68.87 66.06 58.30 46.39 42.37 25.87 46.76
1897 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1898 28.61 25.93 38.71 40.43 53.03 61.17 68.16 67.84 60.93 47.00 a 34.83 27.48 46.18
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 55.40 z 64.56 c 66.92 e 68.67 d 62.60 e 50.96 d 36.77 d 29.03 54.22
1907 27.94 21.18 34.94 37.33 48.23 57.87 69.13 66.35 58.52 c 42.17 a 38.18 b 32.10 44.49
1908 25.68 23.07 36.87 43.13 54.87 60.27 72.77 72.68 56.33 48.42 34.27 28.39 46.40
1909 28.42 32.61 32.10 43.27 52.42 63.33 62.77 61.55 55.70 40.52 38.30 22.94 44.49
1910 24.32 25.32 37.13 45.60 50.48 59.10 66.71 63.06 59.67 47.94 32.80 21.16 44.44
1911 29.26 27.86 29.90 38.83 55.48 61.30 67.39 65.58 60.07 47.84 34.87 32.90 45.94
1912 17.48 22.72 32.03 43.67 53.55 60.57 65.39 62.97 60.97 48.65 37.80 31.26 44.75
1913 34.48 26.93 37.97 45.17 51.52 59.67 65.48 63.32 58.53 50.61 37.93 31.32 46.91
1914 28.58 22.11 29.84 41.27 53.00 60.33 65.00 65.97 52.60 49.81 35.13 28.17 a 44.32
1915 27.70 a 30.18 28.87 44.60 50.23 58.83 64.52 63.94 59.13 48.52 34.47 26.71 44.81
1916 29.58 24.25 a 27.26 40.90 54.57 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z 35.31
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 69.56 v 63.61 57.33 54.29 37.63 22.94 47.16
1920 20.48 24.62 32.10 42.10 47.77 60.23 64.71 67.06 58.50 49.39 37.60 32.26 44.74
1921 27.81 28.79 43.29 46.47 50.84 59.03 69.03 61.39 62.47 44.35 39.30 27.71 46.71
1922 22.68 28.82 35.42 43.13 52.52 64.00 65.97 63.52 58.00 47.74 37.90 28.61 45.69
1923 27.50 a 22.57 31.93 a 40.60 48.84 63.97 64.23 63.94 59.62 a 45.29 36.48 a 35.29 45.02
1924 25.03 26.64 a 33.16 40.03 50.52 60.10 64.71 63.23 54.43 44.45 36.67 27.03 43.83
1925 24.42 31.93 34.81 43.30 46.81 65.43 65.58 61.19 61.63 43.48 35.63 29.06 45.27
1926 25.16 26.57 29.06 39.33 49.19 57.47 65.87 67.16 59.17 46.29 34.63 25.39 43.78
1927 24.94 32.50 35.52 40.20 51.39 57.03 65.58 60.65 57.23 48.97 41.50 30.94 45.54
1928 24.42 26.93 33.06 39.63 49.87 61.53 66.58 68.90 56.17 46.84 38.67 28.55 45.10
1929 25.42 24.86 39.74 45.00 52.06 61.17 65.58 61.19 58.45 a 44.06 40.07 30.43 c 45.67
1930 28.42 29.75 33.23 40.03 a 53.65 63.13 66.90 63.00 63.10 44.16 37.73 27.71 45.90
1931 27.48 27.96 33.35 41.47 52.19 60.93 68.90 65.90 a 62.80 49.71 43.03 a 35.06 47.40
1932 37.65 30.71 a 30.90 39.90 52.13 61.20 65.71 64.00 b 58.27 48.58 35.33 30.68 46.25
1933 33.26 28.21 32.87 42.73 55.81 62.23 64.74 66.61 62.20 46.21 b 34.60 27.58 46.42
1934 28.94 12.89 29.00 41.00 53.77 65.87 68.87 63.94 61.97 45.10 39.07 28.00 44.87
1935 24.32 24.71 37.65 42.30 49.26 61.60 68.10 65.71 56.77 45.39 42.80 24.94 45.29
1936 22.16 18.31 38.52 40.90 53.13 61.53 66.03 66.32 60.17 49.39 35.20 32.26 45.33
1937 35.90 a 28.18 30.97 42.77 52.77 62.93 66.81 67.71 54.83 45.74 36.77 28.30 a 46.14
1938 27.42 30.75 36.48 44.90 52.39 61.37 67.97 67.35 57.90 47.55 38.67 29.74 46.87
1939 27.26 32.00 34.16 42.40 54.26 63.80 65.94 67.97 a 59.83 a 48.03 34.47 29.52 46.64
1940 14.42 26.59 29.71 38.57 52.29 62.37 65.42 65.19 56.10 44.42 39.00 32.90 43.91
1941 27.48 25.21 29.16 45.40 53.16 60.80 66.77 63.26 59.63 52.52 38.80 32.71 46.24
1942 25.35 24.93 36.42 44.23 56.94 63.43 68.65 65.65 60.77 49.74 38.80 26.52 46.78
1943 27.74 27.89 33.35 38.43 55.16 67.73 ----- z 65.13 56.50 46.39 35.50 26.61 43.68
1944 28.03 29.41 32.39 42.07 57.19 63.00 66.84 65.23 61.00 46.06 38.17 26.52 46.33
1945 23.00 27.43 42.03 46.33 51.71 62.90 67.10 63.42 63.20 46.00 a 40.77 25.30 a 46.60
1946 28.23 28.61 40.32 41.83 54.19 59.40 64.65 62.61 59.07 50.13 40.40 30.45 46.66
1947 32.65 23.00 ----- z 43.17 52.42 60.00 65.45 67.23 59.93 51.39 35.87 26.63 a 47.07
1948 20.71 25.28 36.16 43.30 54.13 62.17 66.42 64.29 56.50 46.29 43.20 31.39 45.82
1949 34.61 34.73 f 35.45 42.83 53.32 63.47 70.16 66.45 b 56.20 52.90 38.30 c 31.74 49.59
1950 36.04 c 29.11 a 31.13 39.27 51.29 58.90 64.65 63.35 56.30 48.55 35.67 25.29 44.96
1951 27.81 26.36 34.77 42.70 52.11 d 61.43 66.90 65.00 58.13 50.61 34.63 32.00 46.04
1952 31.42 31.34 33.61 46.03 52.03 64.50 69.26 66.26 58.96 e 43.23 39.43 31.97 47.34
1953 32.19 j 32.39 37.32 44.47 57.10 62.30 66.68 64.26 59.07 a 48.00 36.47 31.84 49.08
1954 25.84 32.11 34.85 d 45.73 51.26 61.63 64.87 64.61 59.93 51.74 36.83 29.52 46.58
1955 26.19 26.71 36.13 46.60 55.13 58.77 71.61 69.45 59.70 49.39 35.63 24.32 46.64
1956 25.97 31.41 32.32 41.30 50.42 61.73 65.81 64.39 58.03 50.00 a 35.52 g 35.65 47.00
1957 23.84 31.46 35.23 45.93 53.74 63.67 64.10 a 61.97 60.80 45.19 40.86 a 32.32 46.59
1958 24.97 21.68 33.10 44.37 51.81 58.77 69.32 65.23 56.03 47.71 38.83 22.06 44.49
1959 23.71 26.39 32.61 44.83 56.80 a 62.13 67.00 68.10 60.90 52.52 37.40 31.97 a 47.03
1960 29.42 29.62 25.90 a 46.07 51.48 60.93 64.10 65.81 59.83 46.48 37.93 20.39 44.83
1961 18.39 28.14 35.03 40.40 50.26 60.87 67.23 65.10 64.13 47.23 40.53 28.61 45.49
1962 25.13 25.75 32.03 44.57 53.97 62.70 63.42 e 63.68 55.37 48.13 34.70 24.19 44.47
1963 23.06 19.89 34.58 42.13 49.29 60.40 65.16 62.06 54.77 47.74 41.47 23.94 43.71
1964 25.71 26.66 35.13 41.37 53.39 61.40 66.97 62.42 57.27 44.23 39.70 32.42 45.55
1965 23.77 26.39 32.48 41.13 55.35 60.63 64.81 63.77 60.83 44.73 a 38.03 30.61 45.21
1966 24.16 27.18 35.58 39.40 51.13 61.40 66.94 65.58 58.20 45.10 38.77 28.81 45.19
1967 30.23 22.50 31.71 41.50 46.23 60.50 66.29 64.61 55.17 46.03 34.17 29.77 44.06
1968 21.71 22.38 35.10 42.63 49.74 61.77 66.74 66.42 57.17 50.16 40.33 27.03 45.10
1969 24.74 27.93 31.00 44.03 53.90 63.87 67.97 64.84 59.00 46.48 37.03 27.84 45.72
1970 19.06 25.36 31.45 42.80 53.97 61.47 65.65 65.52 59.23 50.13 40.63 31.32 45.55
1971 22.94 29.21 32.39 39.70 50.32 62.13 63.29 62.29 63.17 55.90 37.70 35.94 46.25
1972 29.52 26.17 33.87 40.43 53.42 59.83 68.06 65.32 59.83 45.39 38.23 35.94 46.34
1973 28.71 26.43 38.35 45.37 51.81 66.67 67.39 68.26 61.30 ----- z 39.67 32.58 47.87
1974 31.77 26.11 35.45 46.17 53.03 59.33 64.58 64.26 55.90 42.70 a 39.07 31.70 a 45.84
1975 30.29 30.18 34.13 39.00 55.61 63.17 65.84 66.87 57.13 51.39 41.70 29.90 a 47.10
1976 23.00 32.76 36.55 44.20 51.74 63.07 65.77 64.61 57.33 45.06 32.27 24.94 45.11
1977 16.35 27.14 39.61 44.27 54.13 59.80 67.68 67.61 61.90 47.39 42.43 29.10 46.45
1978 24.10 17.39 32.65 42.37 52.00 61.87 65.87 69.06 ----- z 45.55 39.90 31.32 43.82
1979 ----- z 17.64 35.81 42.90 55.26 57.27 65.77 66.58 59.77 46.06 42.43 31.68 47.38
1980 27.52 23.28 32.73 a 45.00 55.42 59.30 67.71 68.42 61.57 ----- z 35.90 26.90 45.79
1981 20.71 29.57 32.87 46.43 52.00 64.23 68.42 63.26 58.37 44.61 38.37 28.94 45.65
1982 19.48 29.46 33.94 39.63 54.94 59.87 67.61 63.00 57.90 47.71 41.03 36.74 45.94
1983 28.74 28.00 37.45 42.90 52.29 62.57 67.74 67.42 59.67 50.06 39.23 28.71 47.07
1984 22.32 32.72 30.61 42.83 53.48 64.13 66.42 67.84 56.57 54.42 37.00 35.87 47.02
1985 21.45 29.61 36.87 45.67 56.52 61.40 66.81 65.58 60.60 52.16 47.07 26.71 47.54
1986 26.26 27.71 36.00 43.10 55.45 62.83 68.45 64.39 59.23 50.39 38.07 31.23 46.93
1987 26.19 24.79 36.97 44.07 54.55 65.63 70.39 67.03 61.40 42.45 41.70 33.39 47.38
1988 22.94 28.72 33.97 42.67 54.10 61.50 68.77 68.55 56.53 40.81 38.07 29.29 45.49
1989 31.03 28.57 33.61 40.73 51.84 65.00 67.35 67.55 61.23 48.97 38.07 18.94 46.07
1990 33.68 33.29 37.16 43.77 53.42 61.43 68.65 67.29 58.60 52.94 39.30 34.48 48.67
1991 28.84 31.04 38.55 45.60 58.94 63.20 68.87 67.35 58.30 47.97 39.17 32.29 48.34
1992 28.06 29.14 34.65 43.23 50.19 60.57 68.68 64.23 59.90 45.32 40.77 32.97 46.48
1993 32.29 26.04 33.16 43.53 54.16 63.13 70.87 67.39 61.30 47.19 38.03 29.84 47.24
1994 20.97 25.86 34.58 47.50 48.29 65.17 70.23 63.55 57.10 44.90 42.28 a 34.48 46.24
1995 32.50 a 26.00 38.06 43.73 53.55 63.17 69.84 68.35 60.23 51.10 36.13 27.81 47.54
1996 25.90 28.17 32.32 45.33 52.61 64.03 66.48 64.97 60.23 47.90 35.07 35.13 46.51
1997 27.32 33.46 37.32 42.37 49.77 60.40 67.74 64.97 58.90 48.52 38.97 32.16 46.83
1998 35.06 35.18 38.32 46.07 56.10 63.33 66.55 65.74 61.70 47.06 37.37 33.94 48.87
1999 28.45 30.82 32.29 43.47 52.29 62.57 69.74 67.65 61.80 47.61 42.80 32.58 47.67
2000 24.45 30.45 38.90 43.53 55.90 64.13 65.10 65.61 58.83 48.32 36.24 a 24.26 46.31
2001 26.55 30.07 33.19 44.90 54.52 65.20 64.42 69.32 57.93 48.42 41.33 36.03 47.66
2002 32.55 31.57 37.42 48.10 53.03 64.40 69.16 69.84 61.83 51.13 38.20 28.90 48.84
2003 22.97 24.50 34.58 43.03 51.45 62.33 68.32 69.71 62.77 47.77 44.43 31.19 46.92
2004 23.26 28.45 38.81 47.20 61.58 63.57 68.45 67.45 62.63 49.00 41.97 31.48 48.65
2005 26.48 29.04 32.42 44.53 48.81 64.67 69.97 70.29 63.70 51.87 42.07 ----- z 49.44
2006 34.06 29.07 35.94 46.20 52.90 64.63 71.03 69.61 59.43 48.71 43.40 35.29 49.19
2007 32.06 23.39 35.45 42.00 54.19 64.67 67.68 68.52 60.97 56.16 38.83 32.48 48.03
2008 29.61 30.45 37.23 46.90 51.97 66.03 69.45 65.03 62.33 47.84 39.73 32.58 48.26
2009 23.68 ----- z ----- z 45.30 54.77 62.87 66.13 69.16 59.77 48.58 43.40 29.35 50.30
2010 26.32 25.04 39.16 46.43 57.29 67.83 71.58 68.77 61.80 50.48 37.53 25.16 48.12
2011 23.48 29.68 35.06 47.83 57.65 65.43 71.47 a 66.68 64.10 48.42 41.43 34.58 48.82
2012 29.81 32.34 42.39 44.37 54.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 37.23
Period of Record Statistics
MEAN 26.57 27.24 34.53 43.20 52.96 62.17 67.09 65.71 59.33 47.82 38.52 29.74 46.17
S.D. 4.47 3.89 3.22 2.39 2.63 2.21 2.03 2.33 2.41 3.07 2.75 3.71 1.28
SKEW -0.04 -0.89 0.12 -0.18 0.21 0.04 0.40 0.17 -0.18 0.17 0.26 -0.45 0.31
MAX 37.65 35.18 43.29 48.10 61.58 67.83 72.77 72.68 64.13 56.16 47.07 36.74 49.19
MIN 14.42 12.89 25.90 37.33 46.23 57.03 62.77 60.65 52.60 40.52 32.27 18.94 43.71
NO YRS 106 106 106 107 106 107 106 108 107 105 106 107 94