COVINGTON FILTER PLANT, VIRGINIA

Monthly Average Maximum Temperature (Degrees Fahrenheit)

(442044)

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
1960 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 70.39 h 60.83 42.26 51.55
1961 42.19 53.82 61.84 61.27 73.61 82.50 85.87 86.10 82.53 72.94 59.13 45.81 67.30
1962 45.39 52.64 55.45 66.20 82.68 83.20 85.11 d 86.26 76.77 72.06 55.40 42.39 66.96
1963 43.52 42.89 63.29 71.73 76.42 81.03 86.48 84.87 80.30 76.81 57.67 37.29 66.86
1964 48.29 43.93 58.97 69.70 80.81 85.77 86.90 84.87 79.20 66.68 63.27 48.87 68.10
1965 48.23 50.11 55.74 69.70 80.84 79.63 84.13 84.71 80.47 66.97 58.97 52.35 67.65
1966 39.90 45.18 60.84 63.30 77.90 84.63 88.97 83.77 75.60 67.87 60.23 46.48 66.22
1967 50.94 46.61 62.84 73.33 73.13 83.63 84.26 83.94 77.03 69.57 a 53.50 49.71 67.37
1968 39.90 43.17 64.61 70.90 74.74 85.63 87.35 87.55 81.07 69.23 56.93 43.58 67.06
1969 43.03 45.04 52.42 72.97 80.10 84.37 87.45 83.87 76.93 70.42 54.97 40.77 66.03
1970 40.03 46.89 54.97 71.33 81.35 84.00 87.10 85.35 84.97 70.77 56.59 a 49.52 67.74
1971 41.74 50.21 56.52 72.13 74.84 84.90 85.10 83.81 80.17 72.77 57.60 58.65 68.20
1972 50.10 45.34 59.29 70.70 76.16 79.55 a 85.19 84.13 81.43 65.35 53.63 52.29 66.93
1973 ----- z 49.75 63.52 65.67 74.58 85.27 86.29 86.13 82.53 71.45 62.17 47.16 70.41
1974 55.10 52.29 64.19 72.20 77.23 78.67 86.10 83.94 76.57 70.68 59.33 47.68 68.66
1975 49.35 51.64 55.13 67.63 79.39 83.77 86.55 88.68 76.87 74.87 64.07 49.74 68.97
1976 43.74 59.52 66.32 74.20 75.29 c 82.80 85.16 85.39 78.43 63.52 51.47 45.71 67.63
1977 32.29 48.82 65.10 ----- z 80.81 81.63 90.35 86.71 78.73 d 65.10 57.47 46.39 66.67
1978 36.61 39.54 56.39 70.50 76.38 b 84.87 86.03 88.39 82.75 f 71.74 60.20 52.16 65.71
1979 40.77 41.04 63.68 67.96 b 77.48 80.30 84.00 85.39 77.40 68.06 61.41 a 53.48 66.75
1980 45.66 b 46.54 a 57.74 d 71.23 80.68 84.03 90.48 88.60 a 84.10 70.45 58.40 52.90 69.23
1981 41.82 c 51.88 d 55.52 76.57 77.29 87.29 b 87.35 87.81 81.70 69.61 59.67 43.42 68.33
1982 40.05 k 51.64 61.16 67.93 83.90 82.80 87.26 84.52 78.43 71.35 61.00 53.32 71.21
1983 ----- z 49.86 59.03 65.83 77.68 84.53 91.06 90.52 84.43 70.71 60.10 45.16 70.81
1984 43.42 55.55 55.00 67.43 76.84 ----- z 85.32 86.55 77.43 76.77 56.90 57.00 67.11
1985 38.97 49.11 62.39 76.07 81.10 85.20 86.65 85.42 81.97 73.23 65.32 b 45.32 69.23
1986 46.00 48.89 61.52 73.97 81.48 89.03 91.23 83.32 ----- z ----- z ----- z ----- z 71.93
1987 ----- z ----- z ----- z 65.77 82.81 87.03 91.58 92.19 81.20 69.81 63.33 52.58 76.26
1988 43.42 51.24 62.26 71.53 79.10 88.37 92.06 90.13 ----- z 65.68 63.00 50.94 68.88
1989 54.23 52.50 62.97 70.07 75.42 85.93 86.97 85.97 78.83 75.06 60.03 39.94 68.99
1990 53.94 60.32 66.00 71.20 78.87 85.90 89.97 87.81 81.33 73.94 67.27 55.45 72.67
1991 49.23 54.68 60.32 71.53 83.77 86.40 90.03 86.65 82.70 74.06 59.13 52.71 70.93
1992 49.29 ----- z 59.48 69.07 75.23 81.57 89.52 84.81 82.07 71.84 57.90 47.16 69.81
1993 52.29 49.21 54.45 72.30 80.68 88.00 93.32 90.55 82.33 70.94 60.67 ----- z 72.25
1994 39.42 ----- z 59.90 78.20 75.94 88.17 89.10 85.00 79.27 72.42 66.27 52.29 71.45
1995 47.19 48.21 64.81 70.87 77.55 82.53 89.00 89.48 78.47 73.81 53.40 43.81 68.26
1996 42.45 47.83 55.19 72.07 81.58 86.30 87.87 86.71 78.77 71.84 51.20 51.48 67.77
1997 44.42 51.54 61.52 63.80 72.58 82.63 89.35 86.00 80.33 70.16 51.83 45.87 66.67
1998 46.55 49.75 54.52 70.57 79.23 84.83 88.61 87.29 87.13 72.87 60.63 53.06 69.59
1999 48.81 51.79 54.13 71.17 80.16 85.10 91.16 89.13 78.70 68.58 65.97 50.58 69.61
2000 45.23 52.93 63.35 65.37 81.06 84.93 82.61 82.35 75.57 72.94 54.33 38.71 66.62
2001 43.90 52.32 50.97 70.97 75.81 83.03 84.00 86.71 77.33 70.32 67.50 53.90 68.06
2002 50.19 53.14 58.23 70.50 75.77 86.67 87.10 87.74 83.13 66.74 53.57 44.77 68.13
2003 39.58 41.68 61.39 68.67 71.74 78.70 85.74 87.29 77.50 67.71 64.30 45.32 65.80
2004 42.29 46.86 60.42 66.97 82.19 80.70 85.26 83.23 79.40 68.61 60.27 47.42 66.97
2005 47.65 49.96 51.90 68.53 73.29 83.30 86.84 85.39 82.63 69.97 61.33 42.55 66.95
2006 52.68 46.75 57.84 73.83 74.55 81.93 86.65 87.13 74.30 65.84 61.00 54.19 68.06
2007 47.42 38.79 62.65 64.13 79.61 84.20 84.84 92.58 84.47 75.84 58.00 50.52 68.59
2008 44.84 49.14 58.77 69.60 74.45 86.80 86.45 84.74 80.67 68.68 54.37 48.26 67.23
2009 42.32 50.46 58.03 68.67 76.10 84.20 81.71 85.48 77.40 66.16 60.80 44.16 66.29
2010 38.90 39.46 58.35 75.20 79.00 88.70 90.13 87.13 84.30 72.32 60.37 36.52 67.53
2011 41.39 52.25 56.70 a 70.97 a 77.58 86.10 a 90.10 86.81 78.53 67.23 62.10 52.39 68.51
2012 48.32 52.59 68.45 69.10 79.36 t ----- z ----- z ----- z ----- z ----- z ----- z ----- z 59.62
Period of Record Statistics
MEAN 45.06 49.09 59.53 70.02 77.98 84.22 87.41 86.45 80.03 70.45 59.31 48.08 67.91
S.D. 4.90 4.70 4.09 3.47 3.11 2.58 2.57 2.28 2.86 3.15 4.07 5.11 1.36
SKEW 0.00 -0.21 -0.06 -0.18 0.01 -0.25 0.16 0.71 0.25 -0.05 -0.08 -0.26 1.22
MAX 55.10 60.32 68.45 78.20 83.90 89.03 93.32 92.58 87.13 76.81 67.50 58.65 72.67
MIN 32.29 38.79 50.97 61.27 71.74 78.67 81.71 82.35 74.30 63.52 51.20 36.52 65.80
NO YRS 48 49 51 51 51 50 51 51 48 50 51 50 39