JOHN FLANNAGAN RESERVOI, VIRGINIA

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(444410)

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
1969 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1970 ----- z 19.82 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 27.00 23.41
1971 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1972 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1973 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1974 ----- z ----- z ----- z 36.67 48.74 53.70 60.42 61.29 ----- z ----- z ----- z ----- z 52.16
1975 ----- z ----- z ----- z ----- z ----- z ----- z 61.45 ----- z 54.10 ----- z 33.17 ----- z 49.57
1976 17.03 26.07 32.16 ----- z 43.42 57.27 59.03 58.32 50.83 ----- z 24.33 15.94 38.44
1977 8.23 15.00 29.86 b ----- z ----- z ----- z ----- z ----- z ----- z 40.19 33.87 21.58 24.79
1978 12.43 a 11.14 27.71 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 17.10
1979 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1980 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1981 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1982 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
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 ----- z ----- z ----- z ----- z ----- z 9999.00
1987 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1988 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1989 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1990 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1991 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1992 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1993 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1994 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1995 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1996 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1997 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1998 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1999 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 41.76 b 34.10 j 26.43 j 41.76
2000 18.35 k 27.24 h 34.04 h 39.85 j 49.20 f 59.78 g 62.09 h 62.30 h 54.70 j 41.26 d 30.84 k 19.25 k 41.26
2001 18.86 j 32.26 i 26.86 i 40.95 j 52.10 60.31 a 64.64 c 65.17 h 52.30 j 38.88 g 33.21 k 30.75 k 59.02
2002 23.19 j 23.06 k 27.71 j 40.00 44.82 i 59.80 j 64.27 i 60.95 i 54.85 j 46.74 33.71 m 27.37 l 43.37
2003 20.29 j 24.74 i 32.76 j 40.52 i 51.33 j 55.10 i 62.32 i 63.19 j 54.80 j 40.09 i 34.80 o 26.10 j 9999.00
2004 18.90 k 24.32 j 30.95 i 38.41 h 54.73 e 59.30 62.06 59.26 56.57 47.32 38.76 i 26.38 e 52.23
2005 27.47 p 27.50 ----- z 39.36 e 44.26 l 58.25 j 65.41 i 64.18 i 55.60 o 44.61 m 32.80 j 21.14 j 33.43
2006 29.15 k 22.00 i 29.95 i 40.47 k 45.18 i 56.00 k 62.20 k 63.48 j 52.57 p 38.63 l 35.11 k 26.95 k 9999.00
2007 22.00 l 17.53 k 33.94 o 37.89 k 48.10 j 57.61 g 59.45 k 64.45 k 54.58 k 46.64 i 31.44 l 27.31 o 9999.00
2008 20.06 m 24.74 j 28.67 p 38.71 i 44.95 j 56.11 l 57.47 n 58.00 m 55.16 k 39.92 g 27.76 m 25.24 n 9999.00
2009 19.20 k 21.61 j 30.52 j 38.95 j 51.00 i 58.16 k 56.76 n 61.40 k 56.10 i 42.78 h 35.00 q 24.33 p 9999.00
2010 20.77 r 20.69 l 30.37 l 39.58 k 51.76 n 62.18 m 64.62 o 66.38 r 54.79 p 42.27 p 33.84 k 16.90 j 9999.00
2011 20.28 m 25.00 n 34.00 l 43.36 e 49.91 i 60.27 o 67.67 m 62.05 j 55.84 k 43.63 l 35.07 o 30.88 o 43.36
2012 22.84 l 27.53 j 40.11 l 41.00 k 56.11 v ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
Period of Record Statistics
MEAN 12.56 19.91 29.91 39.85 49.75 57.64 61.52 59.62 53.83 43.46 30.46 22.73 0.00
S.D. 4.40 7.01 2.23 2.75 4.88 2.92 2.09 1.52 2.88 3.32 5.31 5.13 0.00
SKEW 0.05 -0.10 0.04 0.20 -0.39 -0.59 0.42 0.46 -0.17 0.33 -0.69 -0.53 0.00
MAX 17.03 27.50 32.16 43.36 54.73 60.31 64.64 61.29 56.57 47.32 33.87 27.00 -9999.00
MIN 8.23 11.14 27.71 36.67 43.42 53.70 59.03 58.32 50.83 40.19 24.33 15.94 9999.00
NO YRS 3 5 3 4 4 4 5 3 3 5 3 4 0