WINCHESTER, IDAHO

Monthly Average Maximum 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 78.03 74.81 61.70 64.00 45.60 35.77 59.99
1966 33.97 37.29 43.68 52.00 65.00 64.57 76.42 78.29 72.47 55.65 44.40 36.39 55.01
1967 36.13 40.57 40.29 45.13 59.19 69.83 81.65 87.16 77.33 55.81 45.37 32.39 55.90
1968 34.55 44.72 48.45 48.53 59.39 66.27 80.77 72.58 65.90 53.23 40.03 31.45 53.82
1969 29.16 34.68 43.68 52.80 64.03 70.13 76.90 78.35 69.40 50.68 48.53 37.80 a 54.68
1970 34.68 44.36 41.71 43.57 60.87 71.77 79.52 81.74 61.37 54.29 42.43 32.52 54.07
1971 35.68 38.93 38.77 49.80 61.71 63.43 77.84 85.48 63.57 52.90 40.50 31.19 53.32
1972 30.58 38.17 47.52 46.20 63.35 68.83 75.61 80.06 63.27 56.29 42.10 29.13 53.43
1973 33.19 41.32 43.65 51.00 63.81 69.17 82.55 79.45 68.87 54.81 36.67 36.48 55.08
1974 30.26 38.41 a 41.32 49.33 54.84 73.37 77.16 78.29 74.27 62.45 43.53 36.13 54.95
1975 32.29 35.46 38.87 43.83 57.77 64.20 79.39 71.71 71.43 51.48 39.77 39.06 52.11
1976 36.90 37.62 39.13 49.20 63.29 63.57 77.16 71.55 72.70 59.65 49.27 40.84 55.07
1977 34.19 45.75 38.52 59.43 53.90 73.30 77.16 80.68 63.37 55.55 38.70 35.16 54.64
1978 35.77 38.82 49.45 50.37 54.55 70.33 75.94 72.97 64.17 60.55 37.80 27.94 53.22
1979 25.74 35.75 46.48 49.83 61.81 71.27 80.52 79.29 75.13 58.61 40.07 40.32 55.40
1980 31.39 39.69 40.42 56.43 59.39 64.00 77.13 72.90 69.37 60.10 43.67 42.61 54.76
1981 42.32 41.14 48.40 a 52.63 56.00 62.77 71.77 80.16 69.10 51.81 47.30 36.55 55.00
1982 32.90 34.79 42.45 48.27 58.74 68.47 72.58 78.03 67.70 53.94 38.83 33.52 52.52
1983 42.00 44.50 47.94 52.40 61.03 64.97 a 71.52 81.00 63.70 57.87 43.97 25.94 54.74
1984 36.52 41.31 45.10 49.00 57.26 63.89 c 77.74 ----- z 64.93 50.87 41.77 30.87 50.84
1985 30.81 34.14 42.13 57.07 b ----- z 69.97 84.48 73.35 59.57 53.06 29.63 34.19 51.67
1986 42.13 40.61 51.74 51.83 62.61 75.03 73.29 83.87 61.20 61.00 39.60 37.00 56.66
1987 34.65 42.43 45.81 61.10 63.68 71.97 73.74 76.48 74.20 65.52 46.33 34.61 57.54
1988 33.90 44.62 44.45 56.73 60.23 67.37 75.61 78.13 69.43 66.90 40.70 35.52 56.13
1989 35.10 29.46 43.23 54.33 58.10 67.90 74.39 71.55 70.37 55.87 45.87 40.16 53.86
1990 37.10 36.46 46.06 54.93 56.00 63.97 77.19 76.68 76.47 53.26 43.73 26.97 54.07
1991 33.13 47.32 41.32 49.90 54.77 60.20 73.90 79.52 71.70 58.87 39.13 39.23 54.08
1992 38.16 48.24 53.06 54.73 64.58 71.77 71.42 76.94 66.13 59.90 38.93 32.52 56.37
1993 30.68 34.46 45.61 48.20 63.97 62.13 62.58 69.45 66.90 58.42 38.33 36.00 51.40
1994 39.94 36.57 47.94 52.80 59.45 65.03 77.65 77.74 70.97 54.48 32.27 34.87 54.14
1995 38.58 44.39 44.87 49.80 59.81 63.83 73.87 72.65 70.03 49.81 46.20 35.61 54.12
1996 33.10 38.17 44.26 51.97 52.48 66.83 79.45 79.00 64.07 53.77 42.27 34.74 53.34
1997 35.10 36.82 44.19 47.80 63.84 63.77 72.71 79.42 69.90 53.03 45.63 35.94 54.01
1998 37.45 40.79 44.87 51.40 58.58 64.77 80.26 81.39 73.67 54.55 40.77 32.45 55.08
1999 37.06 37.11 43.06 49.30 54.90 63.43 75.35 79.00 68.67 57.74 50.70 34.94 54.27
2000 34.29 40.38 43.58 56.13 57.55 67.50 76.00 78.19 64.13 53.58 34.80 33.74 53.32
2001 35.19 35.21 45.10 48.07 63.65 63.40 74.58 81.13 74.13 54.74 46.00 34.35 54.63
2002 33.65 38.36 37.68 50.53 57.45 67.47 79.13 73.52 69.10 51.68 45.50 37.68 53.48
2003 40.61 35.96 44.52 50.00 57.84 69.30 82.94 80.71 71.83 60.26 37.07 35.74 55.56
2004 33.87 37.93 51.00 55.80 56.61 67.50 78.45 75.90 63.80 54.42 ----- z 38.10 55.76
2005 37.77 41.32 47.26 52.37 60.65 64.27 79.48 80.77 65.73 56.52 40.87 34.13 55.09
2006 38.52 36.14 41.32 52.10 63.90 68.17 83.74 79.55 71.53 55.03 43.27 38.52 55.98
2007 32.39 39.14 49.90 52.67 62.65 67.97 83.94 78.39 68.13 54.52 42.23 31.81 55.31
2008 32.00 38.76 40.03 47.00 60.42 65.43 78.81 78.19 70.27 56.55 47.27 29.77 53.71
2009 36.97 40.86 38.68 50.53 61.97 68.43 80.84 79.00 75.87 49.55 42.37 29.45 54.54
2010 38.97 41.11 46.71 50.97 54.19 63.63 77.00 76.87 68.23 57.77 39.10 35.81 54.20
2011 36.55 33.71 42.74 44.37 54.35 63.90 74.39 80.48 77.70 54.16 40.93 36.87 53.35
2012 38.42 37.62 44.03 54.87 58.65 65.43 79.55 82.55 74.27 54.94 45.21 a 33.94 55.79
2013 33.77 37.61 46.13 59.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 39.17
Period of Record Statistics
MEAN 35.17 39.15 44.31 51.21 59.54 66.90 77.13 77.98 68.91 56.05 42.02 34.72 54.49
S.D. 3.47 3.83 3.66 3.84 3.47 3.42 3.96 3.78 4.64 3.93 4.25 3.60 1.20
SKEW -0.04 0.27 0.25 0.26 -0.19 0.42 -0.80 -0.18 -0.03 0.76 -0.48 -0.31 0.00
MAX 42.32 48.24 53.06 61.10 65.00 75.03 84.48 87.16 77.70 66.90 50.70 42.61 57.54
MIN 25.74 29.46 37.68 43.57 52.48 60.20 62.58 69.45 59.57 49.55 29.63 25.94 51.40
NO YRS 48 48 48 47 46 47 48 47 48 48 47 48 44