MOUNT LAKE BIOL STN, VIRGINIA

Monthly Average Temperature (Degrees Fahrenheit)

(445828)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 199711
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
1971 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 32.50 o 37.82 37.82
1972 31.80 a 26.60 35.94 45.52 53.82 57.02 64.63 63.32 59.72 44.88 a 35.12 35.53 46.16
1973 26.77 27.09 42.18 44.17 51.19 64.65 65.92 65.13 60.40 50.63 40.22 30.55 c 47.41
1974 39.27 30.11 41.44 45.81 a 54.70 a 58.32 63.76 63.60 55.68 46.40 37.58 30.63 47.27
1975 31.56 31.75 33.76 42.87 57.57 a 62.07 64.73 66.29 56.53 51.69 43.42 d 31.37 47.80
1976 24.11 37.29 41.56 47.75 52.39 61.82 63.50 61.71 56.05 43.10 30.52 26.02 45.48
1977 13.15 24.84 40.55 49.75 57.97 59.08 67.23 65.53 60.28 44.00 40.77 28.08 45.94
1978 19.40 19.46 34.76 46.12 54.13 62.98 65.08 66.47 61.97 46.69 43.33 32.31 46.06
1979 22.11 22.89 38.90 45.90 54.34 59.40 63.32 64.32 56.88 46.85 40.00 c 34.50 a 45.79
1980 28.37 23.68 a 33.47 47.32 54.95 a 59.52 f 67.39 66.34 61.02 45.58 37.10 29.55 44.98
1981 21.50 30.57 32.84 51.08 53.19 65.45 65.63 62.47 56.17 44.87 37.22 22.75 c 45.31
1982 20.94 30.82 39.27 42.98 60.37 61.18 65.55 63.29 56.62 50.02 41.83 36.47 47.45
1983 24.90 29.95 37.24 43.22 52.31 62.10 66.48 67.85 58.65 50.00 39.57 26.69 46.58
1984 25.02 b 33.81 33.62 a 44.33 54.41 c 64.82 64.60 63.98 55.12 56.48 35.80 39.18 47.60
1985 19.84 28.55 40.84 51.53 58.10 a 61.63 65.18 62.82 57.77 52.92 47.77 25.65 47.72
1986 25.21 c 31.54 37.37 49.72 55.74 63.87 68.29 63.34 61.50 51.24 41.80 32.90 e 48.54
1987 28.11 30.80 39.58 45.17 61.48 65.80 69.29 68.45 59.70 45.53 42.37 33.76 49.17
1988 22.87 28.07 39.38 a 47.38 54.45 62.87 66.02 66.44 55.83 a 38.73 38.62 27.52 a 45.68
1989 32.19 27.64 38.82 42.93 48.71 61.20 62.37 60.63 55.17 47.69 32.55 18.11 44.00
1990 32.90 31.95 40.29 49.00 k 52.81 61.57 64.29 64.13 ----- z 51.06 40.57 ----- z 48.84
1991 ----- z ----- z ----- z ----- z 56.19 62.57 68.31 64.55 i 59.92 j 49.48 i 35.26 k 45.21 x 62.36
1992 30.32 i 34.33 i 37.60 j 45.69 i 50.45 l 57.55 h 66.76 j 61.45 j 58.05 j 44.36 i 40.23 q 31.11 q 9999.00
1993 35.38 o 27.19 j 33.48 44.50 57.32 l 62.35 69.77 65.81 60.65 46.97 37.77 27.66 49.88
1994 22.16 28.61 35.94 49.98 49.71 65.43 a 65.55 62.87 54.95 45.92 42.32 33.60 b 46.42
1995 26.98 24.55 39.58 45.88 53.90 61.33 66.40 66.74 56.17 49.45 32.20 31.19 o 47.56
1996 31.23 r ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1997 21.02 a 32.16 39.85 40.30 46.89 59.81 a 66.68 62.10 56.03 48.02 34.20 ----- z 46.10
Period of Record Statistics
MEAN 25.46 28.76 37.85 46.10 54.32 62.06 65.83 64.51 57.86 47.77 38.81 30.51 46.69
S.D. 5.76 4.03 3.01 2.97 3.45 2.33 1.88 2.05 2.35 3.78 4.15 5.15 1.28
SKEW 0.33 -0.29 -0.37 0.21 0.00 -0.24 0.31 0.12 0.39 0.01 -0.14 -0.44 0.01
MAX 39.27 37.29 42.18 51.53 61.48 65.80 69.77 68.45 61.97 56.48 47.77 39.18 49.17
MIN 13.15 19.46 32.84 40.30 46.89 57.02 62.37 60.63 54.95 38.73 30.52 18.11 44.00
NO YRS 22 22 23 22 23 23 24 23 22 23 23 21 18