KENNEWICK, WASHINGTON

Monthly Average Maximum 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 39.86 55.06 69.10 79.30 d 80.37 93.58 92.52 75.87 66.84 58.93 42.23 68.51
1895 38.42 51.57 58.45 68.73 74.16 83.17 86.55 b 88.71 70.87 70.33 a ----- z ----- z 69.10
1896 51.81 60.17 61.29 65.33 73.52 87.43 94.39 89.39 80.07 72.23 48.83 42.97 68.95
1897 34.19 50.00 50.26 69.23 80.74 82.23 88.48 95.94 78.47 68.35 49.77 41.13 65.73
1898 39.13 53.68 56.32 69.50 79.55 87.37 94.19 96.58 81.80 66.94 54.40 38.90 68.20
1899 43.00 41.82 57.90 67.00 73.06 85.37 96.45 83.10 84.53 64.10 58.93 46.61 66.82
1900 49.77 47.75 65.35 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 54.29
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 44.06 n 46.55 52.35 73.47 78.19 84.80 91.84 95.23 84.77 ----- z ----- z ----- z 75.90
1905 ----- z 46.39 63.26 70.67 73.23 ----- z 94.94 90.61 80.90 59.97 50.64 b 39.20 a 66.98
1906 42.77 45.77 b 55.77 a 74.28 a 75.90 b 80.03 a 101.78 d 92.19 78.71 f 68.35 46.73 h 41.52 67.84
1907 29.68 43.43 53.48 64.63 ----- z 81.23 92.16 83.94 77.04 b 73.37 a 55.20 44.58 63.52
1908 44.42 47.34 59.16 73.10 74.23 a 89.56 l 96.74 92.77 83.28 a 66.23 57.97 44.29 67.23
1909 31.94 50.41 a 62.26 68.60 75.32 87.50 89.52 90.87 ----- z 66.06 54.30 33.45 64.57
1910 38.13 38.84 c 74.40 p 75.00 81.10 86.90 94.45 87.21 c 79.53 73.58 52.72 a 45.61 68.46
1911 44.52 46.25 64.46 e 72.07 75.06 87.10 97.84 92.77 78.70 g 68.65 51.24 e 42.81 67.52
1912 35.79 c 51.04 a 56.77 68.57 80.29 89.83 92.70 d 88.03 a 80.00 64.00 53.80 46.90 67.31
1913 ----- z 39.86 55.19 70.30 77.03 84.66 a 93.07 a 95.07 c 82.11 c 63.31 e 54.30 37.89 c 68.44
1914 50.57 h 45.96 a 64.04 h 68.04 f 77.77 a 79.70 92.00 89.32 75.13 66.90 52.67 32.53 a 68.00
1915 36.45 50.75 63.10 70.27 68.42 82.90 87.74 92.68 77.77 70.32 51.00 a 43.90 66.27
1916 29.23 e 40.97 59.45 69.93 72.55 82.00 86.16 88.84 79.50 68.00 44.67 36.06 63.11
1917 42.06 45.93 52.87 63.73 72.38 b 82.63 93.00 91.90 79.86 a 70.94 54.43 51.65 66.78
1918 46.77 46.68 62.03 71.70 74.03 90.50 90.61 85.13 a 82.90 69.58 53.87 44.81 68.22
1919 44.58 48.96 61.55 71.20 77.48 83.23 92.04 g 89.53 a 79.33 65.65 51.13 29.33 a 63.82
1920 38.74 47.76 59.45 65.37 75.74 81.60 92.90 87.81 77.83 64.42 52.53 45.68 65.82
1921 44.00 48.11 a 60.55 66.67 76.77 84.47 89.42 89.35 73.47 69.13 52.87 38.71 66.13
1922 28.35 40.71 54.16 62.83 73.94 89.07 93.06 87.55 82.30 68.10 43.83 32.97 63.07
1923 46.32 39.57 58.81 68.57 74.84 79.43 91.39 90.10 81.50 64.06 53.07 45.48 66.09
1924 35.81 54.62 58.00 ----- z 83.45 84.70 90.65 87.45 79.73 66.61 47.60 32.94 65.60
1925 44.42 54.64 60.29 70.70 76.13 85.03 94.16 87.29 77.17 65.23 47.77 45.26 67.34
1926 40.52 53.75 64.35 72.83 73.76 b 86.23 93.23 86.94 72.33 66.77 52.17 37.71 66.72
1927 36.71 48.43 56.23 65.83 70.94 82.17 91.00 87.30 a 72.43 65.06 54.70 37.74 64.04
1928 34.94 47.38 59.97 64.13 81.52 81.43 91.26 87.97 78.47 65.39 50.23 39.42 65.17
1929 28.23 32.43 59.61 64.03 75.52 79.90 89.42 92.03 75.37 68.52 48.70 42.94 63.06
1930 22.16 51.93 60.97 72.03 73.03 80.20 91.10 90.03 78.97 61.87 47.90 38.35 64.05
1931 43.35 48.11 57.42 67.33 80.32 80.07 92.77 90.74 78.00 65.55 47.33 35.90 65.58
1932 37.77 44.45 54.94 68.20 72.45 85.03 85.19 86.29 78.90 65.20 a 53.77 40.55 64.40
1933 45.52 38.46 56.07 b 68.47 70.64 i 83.43 92.61 87.88 e 75.13 71.03 a 52.13 51.53 a 65.66
1934 49.59 b 54.82 66.77 76.37 78.25 c 85.46 b 92.74 93.90 78.33 67.42 54.23 43.68 70.13
1935 41.48 47.18 55.29 64.17 76.74 82.67 89.32 85.77 80.83 62.45 42.77 35.65 63.69
1936 41.39 29.31 56.26 67.17 77.03 78.97 86.71 86.90 77.43 69.48 42.30 43.58 63.04
1937 22.42 39.11 57.74 63.30 77.06 80.21 a 90.13 83.19 78.43 67.94 52.13 43.58 62.94
1938 41.90 43.46 57.77 67.37 79.60 a 87.37 95.68 89.00 87.10 66.17 a 49.57 45.42 67.53
1939 46.58 45.71 58.73 a 72.93 81.39 82.87 94.71 94.87 84.63 68.35 51.27 44.58 68.89
1940 37.19 47.00 61.81 68.47 81.74 90.27 92.29 93.07 a 83.33 69.29 42.77 42.16 67.45
1941 39.32 48.71 64.84 71.57 75.29 82.37 96.26 87.71 74.27 63.68 54.40 45.42 66.99
1942 30.48 46.86 60.42 71.10 74.90 81.43 93.97 95.00 85.30 71.29 46.67 42.84 66.69
1943 33.48 46.21 56.39 70.90 72.97 79.47 93.87 88.32 87.40 66.68 47.17 38.84 65.14
1944 39.52 46.79 57.77 69.10 78.55 83.00 93.29 89.71 83.83 71.97 47.67 36.58 66.48
1945 43.29 51.00 55.13 65.43 76.13 82.50 93.19 90.48 77.73 70.29 52.17 45.52 66.91
1946 ----- z ----- z ----- z 69.50 f 78.13 80.37 89.58 89.10 74.87 60.42 47.57 44.45 70.56
1947 38.03 50.21 62.84 70.20 83.19 80.07 89.55 85.19 78.67 64.39 49.30 42.48 66.18
1948 40.58 44.21 54.90 62.13 70.06 85.52 a 86.89 c 84.35 76.10 62.77 51.20 37.23 63.00
1949 24.84 43.00 57.45 72.69 a 80.32 84.90 89.39 86.87 79.31 a 61.90 55.20 45.74 65.13
1950 23.23 42.32 54.26 64.17 75.23 80.27 92.19 89.26 81.34 a 61.52 50.80 45.74 63.36
1951 42.55 48.11 52.52 70.40 77.61 83.87 92.71 87.81 80.47 62.68 49.63 37.03 65.45
1952 34.58 48.76 57.55 72.60 78.03 81.53 92.71 88.58 81.52 a 71.42 43.60 42.29 66.10
1953 52.81 52.14 59.84 65.40 73.03 77.77 91.97 88.90 k 82.59 a 66.71 54.67 48.10 65.91
1954 40.90 a 46.82 54.93 a 65.33 77.58 79.55 a 87.28 m 83.32 76.77 62.26 54.90 42.00 62.22
1955 38.23 47.43 52.68 60.77 71.73 a 84.93 85.59 d 87.00 l 78.00 a 65.11 c 41.18 b 38.68 60.39
1956 39.52 35.00 k 56.65 71.60 78.52 80.80 89.65 n 87.65 79.59 a 62.61 44.87 43.90 64.57
1957 26.26 45.32 54.97 68.13 77.03 84.50 87.87 83.56 d 81.00 59.19 50.63 49.16 63.97
1958 46.03 53.68 56.03 64.40 83.10 87.57 94.94 94.24 j 77.20 67.00 52.57 42.71 65.93
1959 42.03 a 46.46 58.45 68.13 71.42 82.00 91.42 84.52 73.50 65.10 48.60 40.65 64.36
1960 29.28 b 48.21 57.32 67.27 71.97 84.80 95.68 84.87 79.17 65.74 53.33 35.87 64.46
1961 43.03 55.57 58.74 66.40 75.52 91.60 94.84 94.16 76.07 63.65 46.23 d 42.87 67.39
1962 41.16 47.21 54.94 70.80 69.81 83.50 90.48 86.35 80.43 62.39 54.27 44.71 65.50
1963 36.58 47.68 58.55 62.67 76.35 83.00 86.06 88.74 82.83 69.39 52.93 38.42 65.27
1964 46.65 52.55 56.87 65.20 74.58 81.20 89.90 83.77 76.20 64.81 46.10 37.77 64.63
1965 41.87 52.18 57.26 69.37 74.84 83.20 91.48 87.48 76.47 69.97 52.10 42.35 66.55
1966 43.48 50.39 58.87 69.20 79.52 81.37 88.58 89.10 81.70 66.23 52.80 47.00 67.35
1967 50.35 55.64 56.81 61.67 76.06 87.03 92.97 96.39 85.30 68.16 51.57 43.55 68.79
1968 46.42 53.03 61.35 66.20 75.71 83.70 92.52 83.48 b 78.40 61.90 49.80 39.00 65.96
1969 29.45 40.71 58.26 64.80 78.81 87.17 89.23 86.23 77.90 61.32 49.70 40.68 63.69
1970 39.16 48.96 56.90 61.80 76.55 86.20 92.58 90.00 73.77 62.97 49.23 41.84 65.00
1971 47.74 50.75 53.71 66.37 77.71 78.80 92.84 94.13 73.87 65.00 52.30 42.29 66.29
1972 41.90 47.31 61.29 64.50 79.84 85.33 91.42 92.29 77.37 65.97 49.37 37.68 66.19
1973 38.42 48.68 61.10 69.57 79.71 83.93 93.48 90.16 80.47 65.39 47.93 46.39 67.10
1974 38.94 51.64 59.06 66.00 72.68 88.77 90.58 91.42 84.30 66.16 51.50 48.00 a 67.42
1975 41.39 45.00 55.97 63.13 76.74 82.03 93.81 85.83 a 82.70 64.48 51.23 44.35 65.56
1976 44.29 48.93 56.45 66.50 ----- z 82.27 89.77 a 85.29 83.45 a 64.94 49.07 b 39.94 64.63
1977 30.35 50.57 56.48 71.00 67.57 a 87.70 g 88.81 94.42 73.37 65.84 49.03 43.26 62.79
1978 38.10 46.43 60.19 64.03 71.52 83.43 89.19 ----- z 74.93 67.61 43.67 40.13 61.75
1979 22.77 44.54 60.06 ----- z 76.06 ----- z 91.10 88.10 83.30 ----- z 45.30 45.94 61.91
1980 35.06 43.03 57.42 70.90 75.42 78.80 91.16 86.68 80.40 67.03 51.47 45.03 65.20
1981 43.29 49.82 62.16 67.13 73.74 77.87 88.71 93.87 82.00 66.37 a 54.60 43.81 66.95
1982 41.13 51.64 59.23 64.63 74.84 85.73 89.68 89.61 79.00 64.74 47.97 42.97 65.93
1983 47.74 52.61 62.16 68.50 79.71 81.13 86.23 90.29 77.83 67.19 55.20 32.45 66.75
1984 42.48 49.79 60.23 65.03 71.16 79.83 92.52 91.06 76.53 64.00 49.30 36.87 64.90
1985 31.48 42.75 58.58 70.40 77.97 84.40 96.58 86.13 73.90 65.16 36.67 27.74 62.65
1986 41.52 48.75 61.42 66.10 75.29 88.67 85.06 93.90 74.50 68.19 51.57 37.87 66.07
1987 38.10 50.11 59.26 71.23 78.13 84.37 86.71 87.84 83.97 69.19 54.17 39.58 66.89
1988 40.39 52.66 58.32 67.13 73.87 79.83 89.58 88.65 79.33 72.55 54.73 39.74 66.40
1989 46.32 34.36 53.94 68.20 72.61 84.60 87.77 85.16 81.13 66.16 54.27 39.74 64.52
1990 48.13 48.25 59.58 70.77 71.81 81.27 92.32 88.00 85.83 63.94 56.10 34.06 66.67
1991 37.32 54.21 54.71 66.03 69.55 75.93 90.00 91.39 83.17 67.06 48.33 44.29 65.17
1992 45.29 50.45 62.39 67.83 79.65 87.57 86.58 89.68 76.40 67.10 48.70 39.81 66.79
1993 30.00 36.64 51.39 63.77 78.52 79.23 80.87 85.32 80.97 68.55 46.97 41.84 62.01
1994 47.10 44.29 62.13 69.27 76.03 81.70 93.32 89.16 83.53 65.84 49.07 44.77 67.18
1995 39.06 53.11 57.06 64.40 75.42 78.87 88.71 85.00 82.83 63.35 54.17 40.77 65.23
1996 40.03 42.76 55.68 66.53 69.74 81.27 92.32 89.35 77.37 64.97 48.27 38.84 63.93
1997 42.10 48.54 58.26 64.03 77.42 80.63 88.71 92.00 80.07 65.74 51.20 42.77 65.96
1998 44.65 51.21 59.16 66.00 73.45 ----- z 96.97 92.42 84.53 65.55 54.80 44.03 66.62
1999 48.58 52.50 57.48 64.87 71.39 80.60 87.39 90.39 80.33 65.39 55.97 46.87 66.81
2000 42.84 48.10 57.13 69.60 74.45 82.73 88.90 89.55 76.10 63.58 43.33 37.16 64.46
2001 38.55 45.61 59.52 63.17 77.39 ----- z 89.03 91.58 83.40 65.39 ----- z 44.29 65.79
2002 46.45 50.71 53.03 66.40 72.45 84.00 93.19 87.65 80.40 64.32 50.50 45.39 66.21
2003 45.87 50.75 61.35 65.30 73.81 85.60 94.58 90.65 82.50 ----- z 49.17 42.32 67.45
2004 34.45 45.72 64.32 68.90 74.10 83.00 93.00 90.13 78.57 67.42 51.63 45.23 66.37
2005 37.90 51.54 62.68 66.67 76.55 80.20 92.23 91.58 78.33 66.23 48.13 36.06 65.67
2006 50.00 47.75 57.16 66.27 75.61 82.17 95.19 89.39 79.77 65.71 52.27 37.45 66.56
2007 38.23 46.79 60.52 65.57 76.45 82.20 93.65 88.16 79.70 63.94 51.53 44.06 65.90
2008 38.71 50.69 56.10 62.37 75.16 80.45 a 91.29 89.03 79.27 65.19 52.10 36.10 64.70
2009 41.03 44.61 52.81 65.37 76.26 84.17 93.90 91.06 83.20 61.45 53.53 34.48 65.16
2010 44.81 50.82 60.74 65.57 69.65 78.70 89.87 88.61 77.43 65.81 47.70 41.13 65.07
2011 44.16 47.04 56.32 60.63 69.84 79.20 86.13 91.42 83.40 65.90 53.13 40.26 64.79
2012 46.03 48.10 57.65 67.00 74.03 78.27 91.00 92.03 81.83 65.94 51.37 46.19 66.62
2013 37.19 51.79 59.00 75.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 37.00 z 49.33
Period of Record Statistics
MEAN 39.76 47.55 58.23 67.56 75.71 83.05 91.36 89.26 79.50 66.16 50.60 41.38 65.76
S.D. 6.65 4.92 3.23 3.30 3.34 3.15 3.20 3.19 3.48 2.90 3.87 4.40 1.57
SKEW -0.70 -0.85 0.12 0.18 0.01 0.44 -0.17 0.15 -0.10 0.25 -0.67 -0.48 -0.02
MAX 52.81 60.17 66.77 76.37 83.45 91.60 101.78 96.58 87.40 73.58 58.93 51.65 70.13
MIN 22.16 29.31 50.26 60.63 67.57 75.93 80.87 83.10 70.87 59.19 36.67 27.74 62.01
NO YRS 111 115 114 111 112 109 112 111 112 112 111 113 87