WINCHESTER, IDAHO

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(109846)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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 ----- z ----- z ----- z ----- z ----- z 45.81 46.10 34.57 35.94 29.00 21.39 35.47
1966 19.26 17.71 19.19 29.77 35.23 38.50 42.71 43.65 42.37 32.77 27.30 23.58 31.00
1967 23.52 24.86 23.26 27.17 35.26 42.43 44.43 c 46.42 42.67 34.06 26.40 17.52 32.33
1968 17.13 26.21 28.00 26.23 33.77 40.93 44.26 43.39 40.47 32.52 25.60 14.00 31.04
1969 12.19 14.39 19.26 30.57 36.74 43.43 42.39 40.68 40.50 29.39 27.93 23.00 a 30.04
1970 20.35 27.11 23.00 26.33 35.74 45.30 47.52 42.97 34.83 30.84 25.20 16.48 31.31
1971 21.29 22.00 19.29 28.33 36.97 40.10 43.68 45.77 31.10 26.48 24.33 17.23 29.71
1972 14.58 20.14 25.32 25.50 36.10 40.93 44.42 46.26 35.30 30.52 26.10 12.52 29.81
1973 15.94 20.86 26.32 27.67 34.29 40.40 44.32 45.29 40.20 32.45 22.87 25.77 31.36
1974 13.71 21.26 a 23.65 31.43 34.32 42.87 45.16 44.10 36.73 31.32 27.73 21.42 31.14
1975 17.23 16.46 22.13 25.10 34.26 40.50 50.32 43.19 36.83 32.77 22.90 21.84 30.29
1976 21.52 20.41 17.97 28.00 34.94 39.00 46.29 44.29 40.53 30.68 26.97 22.13 31.06
1977 14.94 25.18 20.45 30.23 33.42 43.37 42.87 45.16 37.07 31.03 21.97 20.03 30.48
1978 21.61 25.96 29.55 31.53 35.65 41.43 46.23 43.94 39.70 29.65 19.97 9.39 31.22
1979 2.71 20.96 25.74 30.63 37.87 40.73 45.19 45.87 39.33 33.65 18.87 23.29 30.40
1980 9.52 24.21 23.13 32.80 36.84 41.47 45.16 39.84 40.20 32.87 27.33 25.61 31.58
1981 25.68 23.21 26.87 a 31.90 36.90 41.33 40.94 43.68 38.13 31.35 29.03 23.00 32.67
1982 17.65 16.14 24.45 26.33 33.61 43.20 42.97 43.32 35.00 30.10 19.97 17.84 29.21
1983 24.71 25.50 30.65 28.37 35.87 40.90 45.45 49.84 35.57 32.39 28.90 10.61 32.40
1984 17.87 25.00 29.74 29.67 34.52 39.93 c 43.87 ----- z 37.17 29.00 26.20 12.10 29.55
1985 11.03 13.96 20.20 a 33.50 b ----- z 41.63 45.94 42.23 35.13 32.16 14.20 9.52 27.23
1986 26.10 22.18 32.13 30.03 38.87 44.03 41.23 48.10 37.50 32.29 24.87 20.19 33.13
1987 17.58 24.68 29.23 35.03 37.97 43.30 45.26 39.65 36.70 27.81 26.77 19.77 31.98
1988 17.19 24.59 26.06 33.10 36.71 42.53 42.84 40.58 37.33 35.71 26.40 18.84 31.82
1989 19.23 8.68 25.94 33.33 37.00 43.57 47.00 45.97 40.47 32.81 31.50 23.97 32.45
1990 24.97 19.18 26.39 34.27 36.39 43.53 49.52 49.90 45.40 32.26 29.20 11.48 33.54
1991 17.55 29.93 25.00 30.30 35.10 40.50 47.16 49.42 41.67 32.90 27.33 25.35 33.52
1992 25.10 28.79 29.81 34.43 38.03 47.07 47.94 46.71 39.73 35.23 25.57 17.84 34.69
1993 14.19 14.93 28.84 32.50 41.61 43.60 43.29 45.42 38.63 35.16 20.80 24.03 31.92
1994 29.10 20.00 27.06 34.63 39.45 39.70 48.19 47.13 41.77 32.61 22.33 22.55 33.71
1995 23.00 26.32 26.45 31.17 38.29 42.67 49.39 44.45 42.37 33.03 31.40 22.87 34.28
1996 20.71 18.24 26.81 33.13 35.68 42.23 48.03 46.52 39.60 33.90 27.80 22.06 32.89
1997 21.94 22.86 26.84 30.27 40.06 43.90 47.13 49.77 44.10 34.65 30.20 21.23 34.41
1998 23.94 26.64 26.97 31.60 38.94 43.80 53.03 48.84 46.63 34.03 30.73 20.71 35.49
1999 24.84 24.11 23.48 27.73 33.84 42.10 44.94 50.03 38.43 34.13 32.53 23.65 33.32
2000 21.84 25.14 26.65 33.97 38.16 42.80 46.13 45.52 40.97 34.58 20.03 a 18.81 32.88
2001 19.81 20.32 27.61 30.63 37.87 41.43 48.30 a 48.29 43.43 35.03 30.80 19.97 33.63
2002 23.48 21.00 23.06 30.53 35.84 43.67 50.16 45.58 40.73 27.74 27.70 24.45 32.83
2003 27.68 20.96 29.26 31.90 37.90 43.50 50.26 50.26 43.53 36.39 23.13 22.58 34.78
2004 21.81 24.14 28.55 31.83 37.65 43.63 49.90 49.32 41.47 34.52 ----- z 25.26 35.28
2005 23.42 21.36 29.19 31.27 39.55 42.63 49.42 47.23 38.77 35.61 26.23 19.03 33.64
2006 27.19 19.71 25.19 32.03 38.42 45.77 51.71 47.45 41.83 32.48 27.83 22.06 34.31
2007 15.00 25.75 30.52 32.73 37.32 43.57 52.61 46.58 40.40 34.97 26.33 21.68 33.96
2008 17.35 25.28 24.00 26.43 38.52 41.47 47.77 48.13 41.00 34.61 31.57 17.13 32.77
2009 18.87 23.25 21.81 29.50 38.03 44.47 48.94 50.29 43.87 31.68 27.63 15.52 32.82
2010 28.16 26.21 27.42 31.73 35.52 43.87 47.52 47.45 43.43 37.29 25.13 23.58 34.78
2011 23.13 19.82 27.29 28.83 36.29 43.17 45.97 48.61 44.38 a 37.19 26.97 22.52 33.68
2012 22.90 22.83 27.19 33.10 36.48 43.00 51.03 48.84 42.27 34.35 30.79 a 23.42 34.68
2013 18.84 24.43 26.84 31.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 23.37
Period of Record Statistics
MEAN 19.94 22.14 25.70 30.58 36.69 42.42 46.55 46.00 39.79 32.81 26.18 19.98 32.48
S.D. 5.26 4.18 3.36 2.62 1.88 1.75 2.96 2.85 3.24 2.44 3.82 4.40 1.60
SKEW -0.75 -0.86 -0.49 -0.36 0.23 0.03 0.23 -0.40 -0.29 -0.47 -0.80 -0.96 -0.16
MAX 29.10 29.93 32.13 35.03 41.61 47.07 53.03 50.29 46.63 37.29 32.53 25.77 35.49
MIN 2.71 8.68 17.97 25.10 33.42 38.50 40.94 39.65 31.10 26.48 14.20 9.39 29.21
NO YRS 48 48 48 47 46 47 48 47 48 48 47 48 44