KENNEWICK, WASHINGTON

Monthly Average Temperature (Degrees Fahrenheit)

(454154)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1894 ----- z 33.62 ----- z ----- z 63.85 d 67.08 78.00 a 77.89 63.85 54.23 48.35 34.53 57.93
1895 31.18 41.64 45.76 54.45 63.34 68.75 72.04 d 72.13 58.73 52.41 b ----- z ----- z 56.04
1896 40.13 47.76 46.85 52.00 59.45 70.92 78.31 72.81 63.85 55.85 38.13 36.68 55.23
1897 29.10 39.86 39.94 54.18 64.55 67.98 72.08 77.47 63.20 53.23 42.48 34.08 53.18
1898 31.47 44.07 44.24 54.77 63.39 69.80 76.35 79.16 66.15 53.19 43.23 30.34 54.68
1899 34.50 32.14 45.40 53.70 59.24 67.97 77.76 68.74 67.57 52.15 49.40 37.92 53.87
1900 39.65 37.70 50.90 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 42.75
1901 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1902 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1903 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1904 34.88 n 38.16 43.26 56.85 61.06 69.95 k 76.30 p 76.47 a 65.33 a ----- z ----- z ----- z 56.85
1905 ----- z 35.14 49.98 55.35 59.81 ----- z 78.18 74.23 66.65 47.87 38.98 b 33.30 a 53.95
1906 35.47 a 39.88 b 43.17 a 57.29 a 62.19 b 66.31 a 86.26 d 76.13 64.81 f 55.70 a 37.25 h 36.10 55.85
1907 22.58 37.11 45.02 51.85 ----- z 66.83 75.24 69.58 61.64 b 57.52 b 44.00 38.81 51.83
1908 35.27 37.69 46.95 56.48 59.77 a 70.86 l 79.15 74.32 65.17 a 54.08 45.40 35.55 53.62
1909 23.69 41.85 a 47.55 52.85 60.08 69.48 72.13 70.40 ----- z 52.66 46.00 27.56 51.30
1910 30.47 32.00 d 56.41 t 58.22 62.58 68.28 75.05 68.52 e 62.57 59.13 a 43.41 a 38.94 54.47
1911 33.70 a 34.82 47.52 f 54.12 59.52 71.07 79.00 74.24 64.12 m 52.52 39.10 f 33.31 54.70
1912 27.50 c 41.77 a 44.02 a 54.67 a 63.77 72.88 74.91 d 71.53 a 63.73 50.71 43.12 34.06 53.56
1913 ----- z 29.62 44.12 a 55.34 b 61.63 69.98 a 75.00 a 76.91 c 64.22 c 50.63 e 45.55 31.80 c 54.98
1914 40.50 h 37.98 b 49.12 k 54.80 h 63.08 a 64.45 a 75.55 73.39 62.65 54.80 a 44.15 25.68 a 55.75
1915 29.98 41.15 d 50.52 56.98 59.03 68.50 70.85 74.60 62.40 57.37 42.02 a 36.13 54.13
1916 20.46 e 34.16 48.37 55.97 58.87 66.33 71.16 72.66 64.72 51.94 36.22 29.11 50.83
1917 33.71 36.88 41.66 51.97 a 59.83 e 66.05 74.91 b 73.67 b 65.26 a 54.50 44.27 44.02 53.89
1918 38.84 37.25 48.45 55.18 59.02 71.73 74.19 70.42 a 67.05 57.60 43.37 37.74 55.07
1919 34.35 38.93 47.94 55.48 60.87 65.48 74.02 g 71.85 a 63.22 50.87 40.30 20.35 a 49.97
1920 31.50 37.74 47.69 51.37 58.32 65.15 74.76 70.63 62.63 51.44 40.57 37.10 52.41
1921 35.50 38.91 a 47.65 52.97 62.00 69.63 71.53 72.37 59.63 53.29 42.58 32.45 53.21
1922 21.31 32.54 43.37 50.55 58.76 72.77 76.29 72.97 66.17 54.40 37.77 25.63 51.04
1923 39.74 30.16 46.69 54.60 60.98 66.10 75.53 73.92 65.35 52.18 43.70 37.56 53.88
1924 27.35 45.03 46.02 ----- z 65.82 68.37 75.23 71.74 64.13 54.11 41.12 25.68 53.15
1925 37.89 45.88 48.03 56.48 62.37 70.45 76.69 71.69 63.25 50.97 39.55 39.63 55.24
1926 35.95 44.88 50.58 56.90 59.96 h 70.50 76.50 70.84 b 58.38 54.18 43.65 31.82 54.02
1927 30.40 40.86 45.52 51.80 58.23 68.30 74.92 72.93 a 61.60 53.94 46.53 29.77 52.90
1928 30.42 37.48 48.53 51.88 64.90 68.12 76.35 71.87 63.20 53.37 41.97 33.29 53.45
1929 22.48 22.39 48.69 51.67 60.87 67.26 a 73.23 75.48 61.48 54.44 35.40 36.52 50.83
1930 12.97 43.21 49.27 57.90 60.10 65.85 75.34 74.82 65.03 50.29 40.08 33.77 52.39
1931 37.37 39.45 46.73 53.85 64.34 67.75 76.26 74.32 65.05 52.84 39.37 29.98 53.94
1932 31.27 36.40 46.53 55.35 59.77 70.02 71.19 71.98 63.47 54.43 a 45.77 32.10 53.19
1933 37.69 29.98 45.84 b 53.30 57.64 i 69.02 75.95 72.71 e 61.80 56.68 c 43.80 44.60 b 53.76
1934 41.43 c 43.32 51.94 60.38 d 64.71 c 71.61 c 75.50 76.26 63.68 56.81 47.77 38.89 57.69
1935 35.06 39.05 44.89 51.33 60.68 67.80 73.76 69.77 65.50 50.89 35.23 32.24 52.18
1936 36.52 22.10 45.89 55.93 64.08 67.58 73.06 72.48 62.23 54.03 32.05 36.63 51.88
1937 13.65 30.77 47.29 52.45 61.82 66.74 a 75.10 68.68 64.88 55.55 45.25 38.06 51.69
1938 35.94 36.96 46.29 53.55 62.92 a 71.22 78.95 72.77 70.78 54.45 a 41.02 37.98 55.24
1939 38.84 36.82 47.03 a 56.72 65.05 67.72 76.77 75.69 66.70 54.48 39.57 38.65 55.34
1940 32.11 39.90 49.37 55.00 64.85 71.55 76.11 73.92 a 68.63 56.65 35.00 35.00 54.84
1941 33.89 39.07 49.74 56.70 62.05 67.78 79.21 72.85 61.63 52.29 43.87 38.45 54.79
1942 24.15 38.39 46.58 56.50 60.85 66.63 77.03 76.45 a 67.02 56.37 40.42 36.56 53.91
1943 26.16 38.71 44.15 a 57.12 59.42 65.02 76.26 71.52 67.47 54.05 40.13 33.61 52.80
1944 32.06 38.28 44.15 54.85 62.76 67.52 75.98 72.37 66.92 56.74 40.62 31.85 53.67
1945 37.39 42.23 45.15 52.23 62.65 66.55 75.45 73.24 62.10 55.68 43.47 36.23 54.36
1946 ----- z ----- z ----- z 55.15 f 62.42 66.53 73.76 73.29 62.22 49.97 38.70 37.06 57.99
1947 30.63 39.55 48.60 56.12 67.35 67.40 74.29 70.89 65.05 55.77 42.87 36.90 54.62
1948 33.55 35.72 b 43.81 51.10 59.10 71.40 a 71.55 c 71.35 62.13 49.81 42.90 30.32 51.90
1949 15.61 34.34 46.21 57.24 a 65.08 68.18 72.90 71.84 64.81 a 48.94 46.02 37.21 52.37
1950 15.29 33.09 44.60 51.18 59.00 e 66.98 b 74.76 72.73 64.21 a 51.50 41.92 42.92 m 52.30
1951 35.81 39.04 41.90 53.23 62.24 68.43 75.92 72.60 65.35 52.84 40.97 30.31 53.22
1952 28.37 39.81 45.94 56.50 63.52 67.68 74.79 72.77 65.36 a 56.29 35.60 37.55 53.68
1953 46.53 43.04 48.23 52.80 59.37 64.60 74.40 73.30 k 66.31 a 54.74 46.00 42.08 54.37
1954 33.83 a 41.64 42.74 b 51.77 61.95 65.59 a 71.19 m 69.16 63.08 50.15 46.93 36.03 51.17
1955 33.32 37.88 41.94 49.40 57.90 a 69.98 71.12 f 70.03 l 63.03 a 54.48 c 33.93 b 32.24 47.41
1956 33.47 27.75 k 45.87 56.12 64.37 66.22 74.71 n 72.05 63.48 a 51.85 37.43 37.79 52.87
1957 20.26 37.29 45.65 54.68 64.66 70.02 72.40 69.00 d 65.12 50.08 40.33 41.00 52.54
1958 38.61 45.21 44.56 52.63 67.47 72.88 79.11 77.62 j 64.28 53.19 44.14 a 37.40 54.50
1959 34.97 a 38.96 47.37 54.77 58.55 68.85 75.15 69.89 62.12 53.21 38.32 34.40 53.05
1960 22.73 c 38.62 45.61 54.73 60.08 68.93 79.15 71.29 64.03 54.71 44.80 31.81 53.04
1961 37.40 47.89 48.77 55.38 62.50 74.98 78.53 78.77 63.10 52.50 37.40 d 36.90 56.18
1962 33.53 39.07 44.31 57.28 58.74 67.82 73.87 71.74 65.78 53.08 46.75 39.60 54.30
1963 28.69 40.43 47.55 52.48 62.45 69.53 72.40 73.94 68.73 57.58 46.17 33.58 54.46
1964 39.74 41.57 46.59 b 53.33 61.39 67.38 73.66 69.85 62.87 52.76 41.12 31.90 53.51
1965 37.02 42.84 43.65 56.15 61.00 69.02 75.71 73.82 62.33 57.23 46.00 35.71 55.04
1966 37.65 41.57 46.87 55.60 64.18 67.58 72.76 73.53 67.57 53.97 45.17 40.76 55.60
1967 43.48 45.36 46.97 50.13 61.85 71.75 76.40 77.84 69.67 56.85 42.87 36.40 56.63
1968 38.42 43.59 49.53 52.73 62.84 69.98 76.74 71.28 b 66.08 51.52 43.15 33.10 54.91
1969 23.18 34.21 45.95 53.58 64.10 72.67 73.00 70.68 65.28 50.23 41.45 35.66 52.50
1970 32.98 41.20 45.23 49.73 61.13 71.08 76.89 73.27 60.15 50.45 41.12 34.73 53.16
1971 39.63 40.84 43.53 52.37 63.15 65.38 75.61 77.76 60.75 53.10 43.70 35.03 54.24
1972 34.58 38.62 49.47 51.63 64.19 70.33 74.89 75.21 62.55 51.76 42.35 30.06 53.80
1973 30.90 39.36 49.06 54.75 63.73 69.48 76.23 73.00 64.75 53.69 41.45 39.77 54.68
1974 31.68 43.21 47.18 54.15 58.06 71.71 b 73.31 73.89 65.77 51.02 44.00 39.78 a 54.48
1975 33.94 35.80 44.15 49.37 60.18 66.50 77.84 70.86 b 64.80 54.23 42.87 36.79 53.11
1976 37.16 40.36 44.23 52.13 ----- z 65.23 73.12 a 70.28 b 68.50 j 51.97 41.48 b 33.50 50.95
1977 26.68 41.46 45.90 55.97 56.12 a 71.65 g 72.53 78.73 61.53 52.76 40.87 37.24 51.80
1978 32.81 39.45 48.27 53.03 59.00 69.10 73.79 ----- z 62.40 51.79 34.10 31.16 50.45
1979 16.63 36.71 47.56 ----- z 62.71 ----- z 75.53 73.56 67.50 ----- z 38.28 39.06 50.84
1980 27.16 36.26 45.82 56.43 61.63 65.42 75.50 71.19 65.87 53.66 43.65 37.98 53.38
1981 37.85 40.14 48.32 54.27 59.79 65.32 72.65 75.94 64.77 51.77 a 43.17 35.18 54.10
1982 31.58 39.68 45.24 49.25 58.95 69.33 73.31 74.97 65.37 52.11 39.77 35.68 52.94
1983 39.87 43.66 50.94 53.42 64.00 67.62 72.50 75.66 62.48 52.82 46.93 25.55 54.62
1984 34.74 40.78 49.08 52.98 58.00 66.60 76.00 74.56 62.72 49.94 41.58 28.58 52.96
1985 26.87 31.68 45.00 56.52 63.02 68.48 79.13 70.97 60.33 51.50 29.33 22.84 50.47
1986 34.26 39.36 49.68 52.95 61.15 72.75 70.95 78.24 63.23 55.08 45.10 34.06 54.73
1987 32.06 41.23 49.26 58.25 65.27 70.42 73.85 72.76 68.17 53.92 45.90 34.56 55.47
1988 33.73 41.07 47.27 55.20 61.68 67.88 75.13 73.40 64.72 59.47 46.87 34.21 55.05
1989 39.40 26.20 44.79 56.28 60.53 71.30 73.74 72.48 65.90 54.16 46.92 35.34 53.92
1990 42.15 39.30 47.02 57.93 60.35 68.77 78.10 75.16 70.30 52.73 47.98 27.34 55.59
1991 30.45 44.09 44.21 54.25 59.16 64.47 75.45 76.90 67.37 53.44 42.73 39.15 54.31
1992 39.44 42.91 50.00 56.15 64.52 73.77 73.77 74.90 63.22 55.08 42.65 33.39 55.82
1993 24.58 30.62 42.18 53.42 66.13 67.32 69.10 72.03 65.18 55.74 36.75 37.47 51.71
1994 40.15 36.88 49.00 57.40 63.89 68.57 77.90 75.00 68.47 54.23 41.73 37.90 55.93
1995 33.27 43.79 46.02 52.43 62.73 67.22 75.29 70.52 68.90 52.74 46.37 35.98 54.60
1996 33.32 33.66 45.34 54.95 58.40 67.53 76.60 73.76 63.77 53.82 40.35 32.47 52.83
1997 34.73 40.70 47.90 52.25 64.18 68.40 74.63 77.81 67.47 54.24 44.05 36.98 55.28
1998 37.68 42.73 48.55 53.37 62.24 ----- z 82.10 77.31 70.68 53.81 48.12 36.74 55.76
1999 41.84 44.07 47.05 52.27 59.03 68.40 73.35 76.95 64.85 53.13 48.02 41.50 55.87
2000 36.74 40.24 46.45 56.47 62.74 69.50 75.06 74.89 63.97 53.15 36.73 32.94 54.07
2001 34.74 38.05 47.71 52.60 63.37 ----- z 75.85 77.08 69.10 54.37 ----- z 38.66 55.15
2002 39.50 40.14 43.94 54.33 60.29 70.92 78.35 73.61 66.33 51.52 42.98 40.29 55.18
2003 40.79 41.30 51.37 54.87 61.85 71.88 79.15 76.94 68.50 ----- z 40.62 37.08 56.76
2004 30.50 38.43 52.21 56.13 62.68 70.55 78.81 77.34 66.30 56.31 42.60 39.02 55.91
2005 32.60 39.21 50.45 55.03 64.82 68.38 77.42 76.37 65.08 56.44 41.97 30.87 54.89
2006 43.10 38.61 46.92 54.55 62.53 70.25 79.79 74.63 66.55 54.34 44.55 32.66 55.71
2007 31.97 39.96 48.85 54.12 63.48 69.58 79.98 74.19 66.28 53.48 42.80 37.98 55.22
2008 31.61 42.12 45.00 50.33 63.02 67.36 a 77.16 74.89 65.48 53.08 45.02 29.66 53.73
2009 35.08 37.07 43.66 53.18 62.69 71.55 78.68 77.24 69.05 51.15 44.32 28.45 54.34
2010 39.27 42.30 48.23 53.85 58.48 67.15 75.84 75.21 66.85 55.94 40.40 35.73 54.94
2011 37.11 37.70 46.56 49.88 58.31 67.03 72.44 76.81 69.07 56.29 43.10 33.56 53.99
2012 36.05 39.98 46.94 55.28 61.52 66.60 77.16 76.55 67.18 54.55 44.88 40.74 55.62
2013 32.79 41.64 47.76 58.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 31.00 z 40.73
Period of Record Statistics
MEAN 32.86 38.74 46.64 54.20 61.75 68.62 75.50 73.63 64.80 53.58 42.22 34.85 53.99
S.D. 6.58 4.51 2.40 2.25 2.32 2.25 2.60 2.56 2.54 2.21 3.70 4.29 1.40
SKEW -0.95 -1.10 -0.07 -0.08 0.05 0.37 0.59 0.15 0.08 0.16 -0.76 -0.68 -0.22
MAX 46.53 47.89 52.21 60.38 67.47 74.98 86.26 79.16 70.78 59.47 49.40 44.60 57.69
MIN 12.97 22.10 39.94 49.25 56.12 64.45 69.10 68.52 58.38 47.87 29.33 20.35 50.47
NO YRS 111 115 112 110 111 108 110 111 111 112 110 112 85