BOISE WSFO AIRPORT, IDAHO

Monthly Average Maximum Temperature (Degrees Fahrenheit)

(101022)

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
1940 39.77 46.31 56.19 61.10 76.26 85.37 90.61 90.90 74.40 65.97 43.17 43.13 64.43
1941 40.19 48.11 58.13 62.03 71.03 75.43 90.48 84.55 71.13 62.71 51.73 42.10 63.14
1942 28.29 39.29 51.23 63.57 64.16 73.63 91.87 89.03 78.70 65.97 48.53 38.81 61.09
1943 35.48 45.04 49.84 67.10 66.84 74.57 88.94 87.16 82.47 65.42 49.33 40.74 62.74
1944 34.00 41.59 49.48 60.07 72.32 72.07 87.32 86.87 77.70 71.71 45.00 34.77 61.08
1945 37.87 45.25 49.00 58.37 69.06 74.23 91.45 89.29 74.73 69.39 47.23 38.00 61.99
1946 36.94 42.00 53.81 65.77 71.10 80.20 91.03 89.39 76.00 55.90 45.63 43.90 62.64
1947 32.61 47.14 56.45 62.03 76.42 73.87 91.81 87.77 77.50 66.48 43.50 38.45 62.84
1948 41.77 41.21 47.74 59.07 69.03 79.93 86.19 86.23 76.53 66.19 46.47 33.23 61.13
1949 20.13 38.86 53.29 68.30 74.77 80.40 90.52 89.13 80.73 58.52 55.07 38.74 62.37
1950 33.16 44.57 48.74 59.70 67.90 77.00 88.71 88.32 76.47 69.06 51.47 42.16 62.27
1951 35.94 44.75 47.23 64.57 69.71 76.60 91.45 86.81 78.13 59.84 47.47 34.06 61.38
1952 33.71 38.31 45.29 66.20 71.03 77.20 88.71 88.55 80.87 71.87 46.40 40.35 62.37
1953 47.81 45.86 53.94 58.10 64.13 72.40 91.06 86.81 81.63 66.45 55.70 38.42 63.53
1954 44.13 48.32 50.71 63.03 75.19 74.23 91.45 82.90 76.67 65.13 54.40 38.77 63.75
1955 30.58 35.32 45.68 54.60 65.58 80.97 86.13 91.74 76.97 66.39 43.50 41.77 59.94
1956 40.55 35.79 53.03 63.97 71.97 78.53 90.81 84.81 79.50 61.35 44.23 37.29 61.82
1957 30.00 42.14 51.65 59.90 69.23 80.17 88.90 86.68 80.57 60.23 45.83 40.74 61.34
1958 37.90 50.75 50.52 57.70 78.23 78.03 88.74 90.52 76.17 70.00 49.93 44.10 64.38
1959 42.87 44.75 52.29 63.93 65.32 83.50 92.29 84.90 71.33 62.19 48.20 39.13 62.56
1960 32.45 41.34 53.29 62.13 68.35 85.03 97.29 84.13 81.90 65.97 49.80 39.13 63.40
1961 42.48 49.14 54.23 61.67 72.55 89.07 93.23 92.68 70.77 60.84 46.73 37.06 64.20
1962 28.00 38.04 48.48 67.10 68.13 80.67 87.61 85.87 80.77 65.29 50.83 42.39 61.93
1963 32.03 52.61 55.45 59.07 72.94 75.97 88.68 89.10 84.53 69.13 51.73 34.16 63.78
1964 33.84 34.34 46.58 58.17 68.68 73.97 91.29 84.45 74.07 66.29 45.27 42.39 59.94
1965 39.13 46.21 52.06 61.03 67.90 78.37 89.00 84.94 70.13 70.55 53.00 37.61 62.50
1966 39.90 42.57 55.10 62.70 77.16 79.53 90.65 88.32 81.20 63.94 51.57 38.00 64.22
1967 42.87 47.89 52.26 54.27 71.39 79.50 94.19 94.55 82.80 63.74 49.47 35.39 64.03
1968 37.52 49.86 57.97 60.17 71.61 81.77 94.06 80.84 76.67 64.65 49.27 41.52 63.82
1969 41.29 42.61 54.03 63.60 76.16 78.27 89.32 89.55 78.13 57.45 50.27 41.26 63.49
1970 41.65 50.75 51.45 54.30 70.52 81.43 91.97 93.13 71.77 58.84 50.17 39.77 62.98
1971 39.84 45.64 49.55 60.70 72.65 77.10 90.03 94.03 72.47 60.35 47.77 36.74 62.24
1972 37.71 44.31 56.39 58.33 74.87 81.33 89.58 90.10 71.47 62.90 47.40 32.13 62.21
1973 38.19 47.82 53.13 61.20 75.29 81.87 91.87 88.42 76.87 64.06 47.97 44.39 64.26
1974 36.06 46.64 51.13 61.33 68.77 88.00 89.58 87.58 81.83 64.26 50.43 40.48 63.84
1975 36.06 43.54 50.39 53.87 69.03 78.33 94.32 84.29 82.40 62.97 49.17 37.19 61.80
1976 38.77 42.03 46.65 59.17 74.58 77.83 89.52 81.61 77.47 64.71 52.47 41.77 62.22
1977 26.13 44.57 51.23 69.17 65.13 84.90 88.32 87.65 75.53 65.77 48.97 43.48 62.57
1978 43.55 45.11 59.90 58.63 67.23 79.43 88.74 86.35 74.80 69.03 46.93 35.55 62.94
1979 25.26 41.68 54.19 60.37 71.94 82.20 90.35 85.68 83.50 66.87 44.37 43.94 62.53
1980 37.32 47.21 51.26 65.23 68.55 76.73 89.45 83.71 76.37 65.61 49.40 40.87 62.64
1981 39.55 46.64 56.16 62.33 67.42 77.93 88.74 92.32 78.97 61.03 52.93 42.84 63.91
1982 33.26 38.54 51.00 57.77 69.16 80.20 84.65 89.29 73.87 62.39 45.30 39.35 60.40
1983 43.35 49.04 52.74 58.00 68.84 78.57 84.68 90.13 76.17 66.32 50.00 30.45 62.36
1984 27.39 36.52 51.10 56.03 66.48 74.30 89.94 90.26 74.57 58.26 45.67 30.84 58.45
1985 26.94 33.93 46.45 65.03 72.39 83.00 93.87 85.06 68.80 61.97 35.87 21.42 57.89
1986 37.84 48.96 59.55 60.47 73.16 88.33 85.26 92.65 69.07 66.48 49.73 35.90 63.95
1987 36.29 47.32 54.90 72.23 76.10 85.40 86.48 87.13 82.23 71.06 49.67 40.97 65.82
1988 34.61 48.14 54.77 65.93 72.35 86.17 93.23 89.16 77.20 75.16 47.93 33.48 64.85
1989 33.35 32.14 52.77 66.67 71.32 83.87 94.42 84.87 78.70 62.94 50.07 40.84 62.66
1990 42.00 43.68 57.26 68.43 68.32 82.43 93.00 89.16 86.23 64.97 51.80 28.42 64.64
1991 33.26 52.18 53.90 60.00 68.13 77.83 93.61 93.03 81.10 65.84 44.73 40.29 63.66
1992 41.71 52.69 63.32 68.60 81.45 84.37 87.61 90.77 78.67 68.06 41.10 35.10 66.12
1993 31.39 36.25 49.65 58.60 76.77 74.87 79.61 83.81 79.50 66.35 45.60 41.61 60.33
1994 38.42 43.75 60.06 65.23 74.71 84.27 93.90 93.23 83.17 63.00 40.37 37.10 64.77
1995 43.29 52.00 53.55 59.73 69.00 77.80 89.26 88.35 80.93 63.23 53.07 38.97 64.10
1996 38.97 43.17 54.45 60.87 67.10 81.37 93.06 89.68 75.10 64.10 50.27 42.55 63.39
1997 39.26 46.61 56.55 60.13 76.55 78.57 87.26 90.39 81.03 63.71 52.03 39.16 64.27
1998 46.19 47.82 54.29 61.17 66.42 75.90 94.61 92.48 81.80 63.90 51.27 37.68 64.46
1999 42.32 44.43 54.03 59.67 68.87 79.63 90.00 89.65 78.90 68.35 57.03 37.52 64.20
2000 40.84 50.38 54.35 66.97 71.61 83.97 91.97 91.68 76.37 62.35 39.83 36.58 63.91
2001 33.52 41.75 56.32 59.23 75.71 82.23 89.13 94.68 82.80 65.87 53.00 36.32 64.21
2002 37.58 44.25 51.10 62.10 71.90 82.83 94.61 85.06 78.97 61.26 49.93 43.26 63.57
2003 44.84 45.32 55.90 59.10 70.87 84.83 97.29 91.68 80.60 70.77 46.17 43.97 65.95
2004 33.61 41.90 60.16 66.67 70.29 83.00 92.87 88.55 76.30 64.29 45.47 41.97 63.76
2005 39.00 46.43 56.68 62.03 70.39 77.50 94.06 91.65 77.50 65.61 45.47 36.00 63.53
2006 42.58 44.07 51.19 62.13 73.90 84.70 97.10 89.16 79.17 63.29 51.60 39.45 64.86
2007 37.77 48.00 59.81 63.73 76.61 85.20 98.58 91.13 78.47 62.87 50.57 38.52 65.94
2008 35.52 43.59 50.55 58.53 73.19 81.17 93.10 90.61 80.17 65.03 51.43 39.06 63.50
2009 36.84 45.50 51.19 62.13 74.87 79.20 93.16 88.39 84.53 58.13 50.30 33.48 63.14
2010 43.23 46.89 54.65 60.13 64.48 78.60 91.13 88.16 81.97 67.90 46.57 41.19 63.74
2011 38.90 43.96 52.58 56.47 66.90 76.27 91.52 93.55 86.40 65.23 49.13 41.52 63.54
2012 43.19 47.21 56.94 66.30 71.58 82.03 96.94 93.97 83.50 65.13 53.20 41.68 66.80
2013 27.03 43.86 56.74 69.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 26.00 z 42.54
Period of Record Statistics
MEAN 36.99 44.41 53.16 61.69 71.09 79.94 90.85 88.62 78.17 64.78 48.53 38.65 63.08
S.D. 5.47 4.56 3.74 3.83 3.76 3.96 3.29 3.22 4.05 3.64 3.81 4.07 1.64
SKEW -0.64 -0.57 0.15 0.30 0.27 0.14 -0.28 -0.18 -0.32 0.11 -0.57 -1.37 -0.62
MAX 47.81 52.69 63.32 72.23 81.45 89.07 98.58 94.68 86.40 75.16 57.03 44.39 66.80
MIN 20.13 32.14 45.29 53.87 64.13 72.07 79.61 80.84 68.80 55.90 35.87 21.42 57.89
NO YRS 74 74 74 73 73 73 73 73 73 73 73 73 73