WINCHESTER, IDAHO

Monthly Average 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 61.92 60.45 48.13 49.97 37.30 28.58 47.73
1966 26.61 27.50 31.44 40.88 50.11 51.53 59.56 60.97 57.42 44.21 35.85 29.98 43.01
1967 29.82 32.71 31.77 36.15 47.23 56.13 63.12 c 66.79 60.00 44.94 35.88 24.95 44.13
1968 25.84 35.47 38.23 37.38 46.58 53.60 62.52 57.98 53.18 42.87 32.82 22.73 42.43
1969 20.68 24.54 31.47 41.68 50.39 56.78 59.65 59.52 54.95 40.03 38.23 30.40 a 42.36
1970 27.52 35.73 32.35 34.95 48.31 58.53 63.52 62.35 48.10 42.56 33.82 24.50 42.69
1971 28.48 30.46 29.03 39.07 49.34 51.77 60.76 65.63 47.33 39.69 32.42 24.21 41.52
1972 22.58 29.16 36.42 35.85 49.73 54.88 60.02 63.16 49.28 43.40 34.10 20.82 41.62
1973 24.56 31.09 34.98 39.33 49.05 54.78 63.44 62.37 54.53 43.63 29.77 31.13 43.22
1974 21.98 29.83 a 32.48 40.38 44.58 58.12 61.16 61.19 55.50 46.89 35.63 28.77 43.04
1975 24.76 25.96 30.50 34.47 46.02 52.35 64.85 57.45 54.13 42.13 31.33 30.45 41.20
1976 29.21 29.02 28.55 38.60 49.11 51.28 61.73 57.92 56.62 45.16 38.12 31.48 43.07
1977 24.56 35.46 29.48 44.83 43.66 58.33 60.02 62.92 50.22 43.29 30.33 27.60 42.56
1978 28.69 32.39 39.50 40.95 45.10 55.88 61.08 58.45 51.93 45.10 28.88 18.66 42.22
1979 14.23 28.36 36.11 40.23 49.84 56.00 62.85 62.58 57.23 46.13 29.47 31.81 42.90
1980 20.45 31.95 31.77 44.62 48.11 52.73 61.15 56.37 54.78 46.48 35.50 34.11 43.17
1981 34.00 32.18 37.63 a 42.27 46.45 52.05 56.35 61.92 53.62 41.58 38.17 29.77 43.83
1982 25.27 25.46 33.45 37.30 46.18 55.83 57.77 60.68 51.35 42.02 29.40 25.68 40.87
1983 33.35 35.00 39.29 40.38 48.45 53.05 a 58.48 65.42 49.63 45.13 36.43 18.27 43.58
1984 27.19 33.16 37.42 39.33 45.89 51.91 c 60.81 ----- z 51.05 39.94 33.98 21.48 40.20
1985 20.92 24.05 31.28 a 45.72 c ----- z 55.80 65.21 57.79 47.35 42.61 21.92 21.85 39.50
1986 34.11 31.39 41.94 40.93 50.74 59.53 57.26 65.98 49.35 46.65 32.23 28.60 44.89
1987 26.11 33.55 37.52 48.07 50.82 57.63 59.50 58.06 55.45 46.66 36.55 27.19 44.76
1988 25.55 34.60 35.26 44.92 48.47 54.95 59.23 59.35 53.38 51.31 33.55 27.18 43.98
1989 27.16 19.07 34.58 43.83 47.55 55.73 60.69 58.76 55.42 44.34 38.68 32.06 43.16
1990 31.03 27.82 36.23 44.60 46.19 53.75 63.35 63.29 60.93 42.76 36.47 19.23 43.80
1991 25.34 38.62 33.16 40.10 44.94 50.35 60.53 64.47 56.68 45.89 33.23 32.29 43.80
1992 31.63 38.52 41.44 44.58 51.31 59.42 59.68 61.82 52.93 47.56 32.25 25.18 45.53
1993 22.44 24.70 37.23 40.35 52.79 52.87 52.94 57.44 52.77 46.79 29.57 30.02 41.66
1994 34.52 28.29 37.50 43.72 49.45 52.37 62.92 62.44 56.37 43.55 27.30 28.71 43.93
1995 30.79 35.36 35.66 40.48 49.05 53.25 61.63 58.55 56.20 41.42 38.80 29.24 44.20
1996 26.90 28.21 35.53 42.55 44.08 54.53 63.74 62.76 51.83 43.84 35.03 28.40 43.12
1997 28.52 29.84 35.52 39.03 51.95 53.83 59.92 64.60 57.00 43.84 37.92 28.58 44.21
1998 30.69 33.71 35.92 41.50 48.76 54.28 66.65 65.11 60.15 44.29 35.75 26.58 45.28
1999 30.95 30.61 33.27 38.52 44.37 52.77 60.15 64.52 53.55 45.94 41.62 29.29 43.80
2000 28.06 32.76 35.11 45.05 47.85 55.15 61.06 61.85 52.55 44.08 27.40 a 26.27 43.10
2001 27.50 27.77 36.35 39.35 50.76 52.42 61.27 a 64.71 58.78 44.89 38.40 27.16 44.11
2002 28.56 29.68 30.37 40.53 46.65 55.57 64.65 59.55 54.92 39.71 36.60 31.06 43.15
2003 34.15 28.46 36.89 40.95 47.87 56.40 66.60 65.48 57.68 48.32 30.10 29.16 45.17
2004 27.84 31.03 39.77 43.82 47.13 55.57 64.18 62.61 52.63 44.47 ----- z 31.68 45.52
2005 30.60 31.34 38.23 41.82 50.10 53.45 64.45 64.00 52.25 46.06 33.55 26.58 44.37
2006 32.85 27.93 33.26 42.07 51.16 56.97 67.73 63.50 56.68 43.76 35.55 30.29 45.15
2007 23.69 32.45 40.21 42.70 49.98 55.77 68.27 62.48 54.27 44.74 34.28 26.74 44.63
2008 24.68 32.02 32.02 36.72 49.47 53.45 63.29 63.16 55.63 45.58 39.42 23.45 43.24
2009 27.92 32.05 30.24 40.02 50.00 56.45 64.89 64.65 59.87 40.61 35.00 22.48 43.68
2010 33.56 33.66 37.06 41.35 44.85 53.75 62.26 62.16 55.83 47.53 32.12 29.69 44.49
2011 29.84 26.77 35.02 36.60 45.32 53.53 60.18 64.55 60.86 a 45.68 33.95 29.69 43.50
2012 30.66 30.22 35.61 43.98 47.56 54.22 65.29 65.69 58.27 44.65 38.00 a 28.68 45.24
2013 26.31 31.02 36.48 45.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 31.27
Period of Record Statistics
MEAN 27.56 30.64 35.01 40.90 48.12 54.67 61.84 61.99 54.35 44.43 34.10 27.35 43.49
S.D. 4.24 3.83 3.31 3.04 2.30 2.21 2.95 2.77 3.58 2.52 3.85 3.81 1.14
SKEW -0.55 -0.38 -0.04 -0.05 -0.15 0.31 -0.22 -0.31 -0.14 0.20 -0.70 -0.73 -0.33
MAX 34.52 38.62 41.94 48.07 52.79 59.53 68.27 66.79 60.93 51.31 41.62 34.11 45.53
MIN 14.23 19.07 28.55 34.47 43.66 50.35 52.94 56.37 47.33 39.69 21.92 18.27 40.87
NO YRS 48 48 48 47 46 47 48 47 48 48 47 48 44