PRINCETON EXP STN, KENTUCKY

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(156580)

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
1965 ----- z 26.86 30.61 50.17 60.03 63.37 65.67 a 64.61 61.67 44.97 41.90 33.90 49.43
1966 21.16 29.86 37.68 46.43 51.77 59.20 69.35 63.52 57.73 43.45 39.87 29.77 45.82
1967 30.03 23.89 41.94 50.90 53.26 63.27 63.35 59.65 54.33 47.19 34.07 31.71 46.13
1968 22.81 20.93 34.90 47.93 54.81 64.00 66.13 67.06 56.37 46.06 39.70 27.97 45.72
1969 26.42 30.68 28.61 48.17 54.58 63.97 69.39 63.58 57.70 47.39 34.87 26.77 46.01
1970 18.65 26.46 34.13 49.27 56.52 62.97 64.81 67.00 63.90 48.26 37.37 31.77 46.76
1971 23.97 27.07 32.90 44.10 50.06 67.17 65.29 64.10 62.20 54.55 38.20 38.16 47.31
1972 26.94 28.07 36.65 48.73 55.23 59.83 65.55 65.45 63.33 47.55 37.33 29.71 47.03
1973 27.06 27.29 45.06 46.70 51.71 65.13 68.03 65.42 63.33 51.55 42.57 29.61 48.62
1974 32.77 31.00 42.06 47.20 58.10 59.40 66.35 65.39 55.50 45.94 39.60 32.10 47.95
1975 31.16 31.39 34.42 45.73 58.61 63.90 66.13 68.23 56.00 49.87 41.57 31.42 48.20
1976 23.77 36.83 44.19 45.27 51.19 63.07 65.32 61.68 55.70 42.06 28.76 a 23.55 45.12
1977 10.48 26.29 42.16 49.83 a 57.87 64.17 67.65 67.71 63.00 44.33 a 42.80 27.19 46.96
1978 15.45 15.71 33.68 49.53 55.19 64.27 68.03 67.00 61.47 42.81 40.43 30.30 a 45.32
1979 16.42 19.89 38.84 46.50 53.73 a 62.03 a 68.48 65.29 57.80 48.42 36.30 30.65 45.36
1980 28.29 23.83 33.48 45.03 54.03 a 62.17 a 69.79 b 69.00 a 60.37 43.03 36.13 29.52 46.22
1981 21.52 28.59 a 33.21 b 51.24 a 52.60 f 67.43 69.16 66.06 56.34 a 47.81 40.23 27.03 46.24
1982 20.35 27.11 40.45 42.73 57.06 60.93 68.52 64.71 57.73 ----- z 39.83 37.94 47.03
1983 27.97 30.50 38.97 42.10 53.52 62.07 69.19 69.48 58.83 50.97 41.70 20.06 47.11
1984 21.81 31.38 34.13 46.87 52.90 66.23 64.71 66.06 56.83 55.74 35.73 38.35 47.56
1985 16.58 23.86 41.84 51.23 57.58 64.13 67.71 65.06 57.80 53.00 46.00 22.06 47.24
1986 25.00 32.61 37.68 48.50 ----- z 65.70 70.65 63.39 64.10 48.48 39.90 29.61 47.78
1987 25.87 32.68 38.10 44.53 60.58 65.47 ----- z 68.10 58.17 41.58 42.00 32.84 46.36
1988 23.87 26.21 37.00 44.50 52.06 59.27 67.19 68.58 58.77 39.03 37.63 28.74 45.24
1989 33.48 26.18 38.97 45.63 53.84 63.80 68.19 65.81 58.73 47.16 37.80 17.77 46.45
1990 35.35 38.07 41.42 44.57 53.39 64.57 67.03 64.77 61.10 44.45 41.53 30.42 48.89
1991 27.10 31.64 39.74 51.40 62.94 67.50 68.97 65.74 60.50 49.35 36.83 33.97 49.64
1992 29.13 34.90 37.84 47.70 53.55 61.17 69.48 62.84 58.10 45.65 39.90 30.42 47.56
1993 29.97 ----- z 36.00 45.03 56.26 63.63 72.16 67.65 57.33 45.65 35.87 31.43 a 49.18
1994 21.61 30.29 36.97 47.77 50.71 66.80 67.90 63.35 56.57 48.48 43.57 34.42 47.37
1995 28.03 27.89 41.26 47.67 56.16 63.00 68.16 70.77 56.43 47.39 32.80 29.58 47.43
1996 26.65 29.69 32.29 43.70 58.97 65.20 66.13 67.03 57.47 48.55 35.17 32.65 46.96
1997 24.20 a 35.36 39.55 41.73 51.48 65.00 67.19 66.35 59.57 46.87 37.67 32.29 47.27
1998 34.81 36.50 39.97 47.03 60.45 65.83 70.10 65.55 61.27 48.65 40.80 33.10 50.34
1999 29.87 35.14 34.26 51.17 55.06 65.93 70.39 64.06 56.60 45.74 44.30 33.87 48.87
2000 27.93 a 36.76 40.94 45.90 59.84 64.27 66.17 a 68.73 a 58.90 50.35 37.93 19.71 48.12
2001 24.90 34.14 33.00 53.10 57.39 62.00 69.32 69.58 57.23 48.16 40.53 34.07 a 48.62
2002 30.23 31.32 37.45 50.40 54.68 66.57 70.65 67.68 61.33 49.97 36.77 30.97 49.00
2003 21.35 27.71 37.81 48.63 56.26 59.67 67.35 67.58 57.20 47.39 43.20 31.48 47.14
2004 25.90 28.31 42.19 46.90 62.13 63.90 65.61 61.71 58.73 52.29 44.23 26.35 48.19
2005 32.90 34.46 35.26 48.43 51.84 64.93 68.13 69.10 61.30 48.55 41.40 26.52 48.57
2006 35.71 27.46 39.39 51.43 54.58 62.63 67.48 68.61 55.67 45.58 38.67 34.23 48.45
2007 30.06 24.21 45.39 44.03 57.77 64.07 65.23 70.81 62.83 52.97 37.33 32.23 48.91
2008 25.52 29.66 37.23 44.87 54.19 65.93 66.68 64.68 60.83 45.68 34.87 27.23 46.45
2009 22.16 31.54 41.00 46.37 55.94 66.70 64.23 64.23 61.97 47.23 41.60 28.77 47.64
2010 23.16 22.86 38.29 49.40 60.16 68.73 70.55 70.13 60.27 46.10 37.90 24.65 47.68
2011 24.52 32.54 39.81 51.63 59.26 67.40 72.81 68.19 57.73 44.60 a 38.97 33.81 49.27
2012 32.29 34.41 49.74 45.00 z 64.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 38.82
Period of Record Statistics
MEAN 25.86 29.36 38.09 47.40 55.72 64.01 67.75 66.19 59.08 47.41 39.02 30.01 47.43
S.D. 5.44 4.78 4.12 2.79 3.21 2.36 2.11 2.50 2.57 3.37 3.34 4.48 1.28
SKEW -0.40 -0.43 0.20 0.00 0.31 -0.34 0.19 -0.24 0.31 0.17 -0.45 -0.70 0.05
MAX 35.71 38.07 49.74 53.10 62.94 68.73 72.81 70.81 64.10 55.74 46.00 38.35 50.34
MIN 10.48 15.71 28.61 41.73 50.06 59.20 63.35 59.65 54.33 39.03 28.76 17.77 45.12
NO YRS 47 47 48 47 45 47 46 47 47 46 47 47 41