BOISE WSFO AIRPORT, IDAHO

Monthly Average 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 33.03 38.91 45.58 50.07 61.29 69.58 74.89 74.18 63.13 54.32 35.50 35.26 52.98
1941 33.23 39.46 45.42 50.10 58.45 62.90 75.45 70.90 57.90 50.92 42.07 34.98 51.82
1942 20.56 31.54 40.26 51.77 52.97 60.77 75.66 72.90 63.20 52.52 39.68 33.45 49.61
1943 28.16 35.93 39.92 54.02 54.00 61.63 73.29 70.90 66.62 53.90 40.07 32.84 50.94
1944 25.03 34.05 38.32 48.88 58.58 60.75 72.26 70.69 63.73 57.97 38.68 29.05 49.83
1945 32.13 37.59 40.03 46.03 56.65 61.13 74.87 73.42 59.93 55.24 39.65 30.79 50.62
1946 29.03 33.77 43.76 51.85 57.66 65.37 74.89 73.26 61.02 45.13 37.73 36.21 50.81
1947 23.27 38.05 44.89 49.35 62.24 61.75 75.08 72.21 62.85 55.15 36.12 31.34 51.02
1948 33.00 32.05 37.90 48.05 56.31 66.53 70.34 70.39 61.87 52.31 36.97 25.47 49.26
1949 10.32 30.68 43.16 53.42 61.47 65.67 74.40 73.65 65.62 46.47 44.60 31.05 50.04
1950 25.32 35.23 39.81 47.53 54.06 63.60 73.26 72.65 63.13 56.85 42.60 36.21 50.86
1951 29.05 36.80 37.11 50.63 56.77 62.32 75.68 72.23 63.63 49.24 38.65 27.45 49.96
1952 26.61 30.41 36.74 52.47 57.56 64.15 73.52 72.85 65.33 56.89 35.00 34.03 50.46
1953 41.00 36.36 42.37 46.10 52.15 59.33 74.05 71.52 65.95 52.84 45.32 31.27 51.52
1954 36.50 38.82 39.31 49.87 59.90 61.33 75.32 68.23 61.52 50.87 43.52 30.52 51.31
1955 23.48 27.18 36.19 44.02 53.58 66.62 71.26 74.60 62.45 53.27 35.53 35.32 48.63
1956 33.45 27.33 41.94 50.52 59.42 64.53 75.13 69.69 64.13 50.03 35.30 30.63 50.18
1957 21.45 34.46 42.21 48.70 58.18 66.00 73.15 70.69 65.27 49.52 36.40 34.37 50.03
1958 31.47 42.18 40.66 47.77 64.29 66.02 74.03 75.85 61.98 55.26 40.23 36.58 53.03
1959 35.79 37.12 41.00 50.67 52.71 68.60 75.98 70.02 59.73 49.60 34.72 27.92 50.32
1960 23.94 33.55 42.89 48.98 54.44 68.87 80.66 68.98 65.97 52.61 40.53 30.45 50.99
1961 32.87 41.20 44.40 48.07 57.85 72.83 76.24 77.81 57.15 49.08 37.02 30.84 52.11
1962 21.08 32.21 38.55 52.37 55.95 65.45 72.21 70.69 65.18 53.03 41.35 35.40 50.29
1963 23.27 43.32 44.23 48.22 60.84 63.87 72.16 73.44 70.92 57.81 43.67 28.10 52.49
1964 26.00 26.34 37.52 45.30 55.05 62.48 74.85 69.16 59.55 52.89 36.90 35.13 48.43
1965 34.10 36.88 39.11 50.23 54.90 64.63 73.31 71.13 57.10 56.37 44.32 30.05 51.01
1966 32.40 33.25 43.19 49.17 61.42 64.97 73.23 72.05 66.20 49.42 43.00 31.23 51.63
1967 36.19 38.27 41.95 43.83 56.47 66.03 78.44 78.03 68.62 50.74 40.67 27.77 52.25
1968 29.45 41.02 45.89 46.30 57.82 67.82 77.31 68.73 62.95 52.42 41.95 35.11 52.23
1969 34.27 36.21 42.53 50.48 61.05 66.23 72.94 72.44 64.17 45.85 39.67 34.60 51.70
1970 36.16 41.20 41.37 43.82 57.52 68.87 76.27 75.74 57.78 47.52 43.12 33.50 51.91
1971 33.90 37.46 40.18 49.22 59.98 64.83 74.69 78.58 59.13 48.98 39.68 30.21 51.41
1972 30.90 36.50 45.50 46.65 60.58 67.57 73.48 74.50 58.72 51.71 40.45 23.82 50.87
1973 30.71 39.41 43.00 49.08 60.45 67.57 75.55 72.97 63.08 52.39 41.70 38.39 52.86
1974 29.34 38.71 42.56 49.70 55.37 71.72 73.77 71.71 65.33 52.18 41.70 33.13 52.10
1975 28.16 36.89 41.45 44.50 56.18 64.35 78.32 70.00 65.52 52.31 39.45 31.39 50.71
1976 32.13 34.16 37.10 47.28 59.23 62.58 73.10 67.71 64.07 50.81 40.82 29.31 49.86
1977 19.02 33.71 39.82 54.05 53.65 70.18 72.73 73.55 61.97 53.15 39.60 37.23 50.72
1978 37.00 38.18 48.63 48.50 54.32 64.45 72.84 69.87 61.35 52.84 36.70 26.98 50.97
1979 16.19 34.25 43.21 48.65 57.77 66.72 74.08 71.15 67.32 54.32 34.67 35.76 50.34
1980 30.27 39.78 41.05 52.57 57.23 62.58 72.87 67.19 62.53 51.61 39.78 33.03 50.88
1981 33.85 36.82 44.42 50.30 54.66 63.18 70.95 74.15 63.62 48.66 43.97 35.31 51.66
1982 25.00 29.96 41.29 45.20 54.84 65.77 70.15 72.65 60.35 50.85 35.98 31.50 48.63
1983 35.81 41.52 44.63 47.03 56.50 63.72 69.35 74.92 60.80 53.77 41.98 23.18 51.10
1984 21.18 30.14 41.85 45.92 54.76 61.65 74.18 75.45 60.02 46.81 39.08 22.89 47.83
1985 19.13 25.75 35.90 51.57 58.42 67.17 77.71 69.19 56.22 48.37 27.62 12.58 45.80
1986 29.39 40.98 47.97 48.27 59.03 72.03 69.60 75.90 57.32 52.56 40.35 27.95 51.78
1987 27.73 37.55 44.21 55.98 62.21 70.15 71.19 70.00 65.62 54.90 40.68 32.84 52.76
1988 26.08 37.76 42.58 52.73 57.85 70.70 74.61 71.52 61.67 59.84 40.67 26.98 51.92
1989 24.66 23.16 43.63 53.05 56.27 68.42 76.94 69.95 63.30 51.21 39.40 30.37 50.03
1990 34.13 34.11 44.27 54.70 55.65 66.88 76.15 73.95 69.88 51.00 41.13 18.11 51.66
1991 24.39 41.55 43.00 48.28 54.90 62.63 75.69 76.56 65.73 51.77 37.37 31.63 51.13
1992 33.13 42.05 48.92 54.83 64.23 69.80 71.34 73.87 63.37 54.39 34.48 28.48 53.24
1993 24.73 28.82 41.68 48.10 63.05 61.87 65.02 68.56 63.02 53.13 32.78 33.29 48.67
1994 32.73 34.68 46.10 52.62 60.97 67.85 76.94 76.10 66.80 50.31 32.52 30.34 52.33
1995 36.19 41.45 43.56 48.15 56.85 63.83 73.35 71.18 65.72 49.15 44.37 33.02 52.23
1996 32.50 35.12 44.19 49.92 55.42 66.65 76.74 74.73 61.75 52.40 41.28 36.29 52.25
1997 32.08 36.80 45.40 48.92 62.92 65.97 72.73 75.53 67.70 51.97 42.95 31.13 52.84
1998 38.85 40.21 44.23 49.83 56.31 63.33 79.21 76.71 69.75 51.63 43.63 30.68 53.70
1999 35.29 36.95 43.74 47.47 55.73 66.33 73.66 75.11 64.02 54.27 46.87 31.90 52.61
2000 34.15 41.64 43.35 54.28 59.71 68.58 76.05 75.87 62.95 52.21 32.67 31.05 52.71
2001 27.16 33.82 45.84 48.08 61.37 67.32 74.32 78.69 68.37 53.50 43.95 30.69 52.76
2002 31.53 33.98 40.69 50.45 59.13 69.57 79.63 70.90 65.12 49.42 40.63 37.32 52.36
2003 38.68 36.86 46.44 49.37 58.74 69.65 80.53 77.34 66.72 58.05 37.68 37.19 54.77
2004 28.40 34.93 48.19 53.80 58.68 69.28 77.97 74.87 63.63 53.52 38.18 35.37 53.07
2005 32.76 36.84 45.68 50.47 59.40 64.37 78.29 76.74 63.32 53.69 37.48 29.53 52.38
2006 36.40 34.73 42.29 51.72 60.97 70.98 81.48 73.98 65.40 51.19 43.33 31.69 53.68
2007 29.18 38.89 48.32 51.70 62.45 70.53 83.06 75.50 64.70 51.95 40.88 32.42 54.13
2008 29.03 36.02 40.84 46.60 60.45 67.10 77.65 75.92 66.05 53.53 43.57 31.47 52.35
2009 31.27 36.91 41.65 50.57 61.60 67.80 78.52 75.15 70.57 48.47 41.38 26.73 52.55
2010 37.37 40.27 44.68 48.83 53.56 66.28 75.77 73.87 67.60 57.03 38.93 35.00 53.27
2011 31.68 35.50 44.15 46.22 55.52 64.25 75.56 78.40 71.37 54.61 40.02 31.27 52.38
2012 34.84 38.38 47.11 54.65 58.90 67.32 81.27 78.50 68.62 53.65 45.18 36.55 55.41
2013 20.15 35.59 45.35 56.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 19.50 z 33.70
Period of Record Statistics
MEAN 29.71 35.95 42.66 49.57 57.91 65.95 74.89 73.12 63.76 52.25 39.67 31.38 51.41
S.D. 5.89 4.22 3.05 2.85 2.97 3.09 3.09 2.91 3.44 2.95 3.57 4.40 1.62
SKEW -0.72 -0.76 -0.17 0.09 0.15 0.09 0.05 0.05 -0.03 0.04 -0.63 -1.48 -0.52
MAX 41.00 43.32 48.92 55.98 64.29 72.83 83.06 78.69 71.37 59.84 46.87 38.39 55.41
MIN 10.32 23.16 35.90 43.82 52.15 59.33 65.02 67.19 56.22 45.13 27.62 12.58 45.80
NO YRS 74 74 74 73 73 73 73 73 73 73 73 73 73