KENNEWICK, WASHINGTON

Monthly Average Minimum 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 27.39 ----- z ----- z 48.41 d 53.80 62.50 a 63.26 51.83 41.61 37.77 26.84 45.93
1895 23.94 31.71 33.06 40.17 52.52 54.33 58.00 b 55.55 46.60 34.97 a ----- z ----- z 43.08
1896 28.45 35.34 32.42 38.67 45.39 54.40 62.23 56.23 47.63 39.48 27.43 30.39 41.50
1897 24.00 29.71 29.61 39.13 48.35 53.73 55.68 59.00 47.93 38.10 35.20 27.03 40.62
1898 23.81 34.46 32.16 40.03 47.23 52.23 58.52 61.74 50.50 39.45 32.07 21.77 41.16
1899 26.00 22.46 32.90 40.40 45.42 50.57 59.06 54.39 50.60 40.19 39.87 29.23 40.92
1900 29.52 27.64 36.45 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 31.20
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 25.71 n 29.76 34.16 40.23 43.94 52.84 k 60.40 p 57.13 a 46.21 a ----- z ----- z ----- z 41.90
1905 ----- z 23.89 36.71 40.03 46.39 ----- z 61.42 57.84 52.40 35.77 27.32 b 27.40 a 40.92
1906 28.37 a 34.00 b 30.57 a 40.31 a 48.48 b 52.59 a 70.74 d 60.06 50.54 d 42.80 a 27.77 h 30.68 44.47
1907 15.48 30.79 36.55 39.07 ----- z 52.43 58.32 55.23 46.27 41.67 a 32.80 33.03 40.15
1908 26.13 28.03 34.74 39.87 45.30 a 52.17 l 61.55 55.87 47.07 a 41.94 32.83 26.81 40.01
1909 15.45 33.30 a 32.84 37.10 44.84 51.47 54.74 49.94 ----- z 39.26 37.70 21.68 38.03
1910 22.81 25.28 c 40.85 r 41.43 44.06 49.67 55.65 50.00 c 45.60 44.33 a 34.53 32.26 40.51
1911 22.33 a 23.39 30.61 c 36.17 43.97 55.03 60.16 55.71 49.05 h 36.39 26.88 f 23.81 38.76
1912 19.93 b 32.50 a 31.60 a 40.76 a 47.26 55.93 57.11 d 54.97 47.47 37.42 32.43 21.23 39.88
1913 ----- z 19.39 32.97 a 41.00 b 46.23 55.31 a 56.93 a 58.75 c 46.11 b 37.96 e 36.80 25.71 c 41.56
1914 30.43 h 29.70 a 34.26 h 41.91 h 48.55 48.79 a 59.10 57.45 50.17 42.47 a 35.63 18.83 a 43.41
1915 23.52 32.21 d 37.94 43.70 49.65 54.10 53.97 56.52 47.03 44.42 32.93 28.35 42.03
1916 11.11 c 27.34 37.29 42.00 45.19 50.67 56.16 56.48 49.93 35.87 27.77 22.16 38.50
1917 25.35 27.82 30.45 40.14 a 47.44 d 49.47 56.69 b 55.69 b 50.60 38.06 34.10 36.39 41.02
1918 30.90 27.82 34.87 38.67 44.00 52.97 57.77 55.74 51.20 45.61 32.87 30.68 41.93
1919 24.13 28.89 34.32 39.77 44.26 47.73 54.65 54.17 a 47.10 36.10 29.47 11.37 a 37.66
1920 24.26 27.72 35.94 37.37 40.90 48.70 56.61 53.45 47.43 38.45 28.60 28.52 39.00
1921 27.00 29.70 a 34.74 39.27 47.23 54.80 53.65 55.39 45.80 37.45 32.30 26.19 40.29
1922 14.26 24.36 32.58 38.27 43.58 56.47 59.52 58.39 50.03 40.71 31.70 18.29 39.01
1923 33.16 20.75 34.58 40.63 47.13 52.77 59.68 57.74 49.20 40.29 34.33 29.65 41.66
1924 18.90 35.45 34.03 ----- z 48.19 52.03 59.81 56.03 48.53 41.61 34.63 18.42 40.70
1925 31.35 37.11 35.77 42.27 48.61 55.87 59.23 56.10 49.33 36.71 31.33 34.00 43.14
1926 31.39 36.00 36.81 40.97 46.84 f 54.77 59.77 54.86 b 44.43 41.58 35.13 25.94 41.97
1927 24.10 33.29 34.81 37.77 45.52 54.43 58.84 58.45 50.77 42.81 38.37 21.81 41.75
1928 25.90 27.59 37.10 39.63 48.29 54.80 61.45 55.77 47.93 41.35 33.70 27.16 41.72
1929 16.74 12.36 37.77 39.30 46.23 54.21 a 57.03 58.94 47.60 40.35 22.10 30.10 38.56
1930 3.77 34.50 37.58 43.77 47.16 51.50 59.58 59.61 51.10 38.71 32.27 29.19 40.73
1931 31.39 30.79 36.03 40.37 48.35 55.43 59.74 57.90 52.10 40.13 31.40 24.06 42.31
1932 24.77 28.34 38.13 42.50 47.10 55.00 57.19 57.68 48.03 43.67 a 37.77 23.65 41.99
1933 29.87 21.50 35.39 38.13 44.64 i 54.60 59.29 57.42 48.47 42.00 b 35.47 37.59 b 41.79
1934 33.75 c 31.82 37.10 44.58 d 51.61 56.86 b 58.26 58.61 49.03 46.19 41.30 34.10 45.27
1935 28.65 30.93 34.48 38.50 44.61 52.93 58.19 53.77 50.17 39.32 27.70 28.84 40.67
1936 31.65 14.90 35.52 44.70 51.13 56.20 59.42 58.06 47.03 38.58 21.80 29.68 40.72
1937 4.87 22.43 36.84 41.60 46.58 53.60 60.06 54.16 51.33 43.16 38.37 32.55 40.46
1938 29.97 30.46 34.81 39.73 46.23 a 55.07 62.23 56.55 54.47 42.73 a 32.47 30.55 42.94
1939 31.10 27.93 35.33 a 40.50 48.71 52.57 58.84 56.52 48.77 40.61 27.87 32.71 41.79
1940 27.03 32.79 36.94 41.53 47.97 52.83 59.94 54.77 a 53.93 44.00 27.23 27.84 42.23
1941 28.45 29.43 34.65 41.83 48.81 53.20 62.16 58.00 49.00 40.90 33.33 31.48 42.60
1942 17.81 29.93 32.74 41.90 46.81 51.83 60.10 58.20 a 48.73 41.45 34.17 30.29 41.16
1943 18.84 31.21 32.47 a 43.33 45.87 50.57 58.65 54.71 47.53 41.42 33.10 28.39 40.51
1944 24.61 29.76 30.52 40.60 46.97 52.03 58.68 55.03 50.00 41.52 33.57 27.13 40.87
1945 31.48 33.46 35.16 39.03 49.16 50.60 57.71 56.00 46.47 41.06 34.77 26.94 41.82
1946 27.61 30.61 38.06 40.17 46.71 52.70 57.94 57.48 49.57 39.52 29.83 29.68 41.66
1947 23.23 28.89 34.35 42.03 51.52 54.73 59.03 56.58 51.43 47.16 36.43 31.32 43.06
1948 26.52 27.26 b 32.71 40.07 48.13 57.28 a 56.21 c 58.35 48.17 36.84 34.60 23.42 40.80
1949 6.39 25.68 34.97 41.79 a 49.84 51.47 56.42 56.81 50.87 35.97 36.83 28.68 39.64
1950 7.35 23.86 34.94 38.20 43.15 e 53.86 b 57.32 56.19 46.63 41.48 33.03 36.50 m 39.64
1951 29.06 29.96 31.29 36.07 46.87 53.00 59.13 57.39 50.23 43.00 32.30 23.58 40.99
1952 22.16 30.86 34.32 40.40 49.00 53.83 56.87 56.97 48.97 41.16 27.60 32.81 41.25
1953 40.26 33.93 36.61 40.20 45.71 51.43 56.84 58.05 j 49.83 42.77 37.33 36.06 42.82
1954 26.16 36.46 30.66 b 38.20 46.32 51.62 a 55.11 m 55.00 49.40 38.03 38.97 30.06 40.08
1955 28.42 28.32 31.19 38.03 44.07 a 55.03 57.32 f 53.05 l 48.07 a 43.68 27.10 25.81 36.97
1956 27.42 20.50 k 35.10 40.63 50.23 51.63 59.76 n 56.45 47.38 a 41.10 30.00 31.68 41.16
1957 14.26 29.25 36.32 41.23 52.29 55.53 56.94 54.44 d 49.23 40.97 30.03 32.84 41.11
1958 31.19 36.75 33.10 40.87 51.84 58.20 63.29 60.64 i 51.37 39.39 35.97 a 32.10 43.10
1959 27.90 a 31.46 36.29 41.40 45.68 55.70 58.87 55.26 50.73 41.32 28.03 28.16 41.73
1960 17.00 b 29.03 33.90 42.20 48.19 53.07 62.61 57.71 48.90 43.68 36.27 27.74 41.69
1961 31.77 40.21 38.81 44.37 49.48 58.37 62.23 63.39 50.13 41.35 28.04 c 30.94 44.92
1962 25.90 30.93 33.68 43.77 47.68 52.13 57.26 57.13 51.13 43.77 39.23 34.48 43.09
1963 20.81 33.18 36.55 42.30 48.55 56.07 58.74 59.13 54.63 45.77 39.40 28.74 43.66
1964 32.84 30.59 36.79 b 41.47 48.19 53.57 57.42 55.94 49.53 40.71 36.13 26.03 42.43
1965 32.16 33.50 30.03 42.93 47.16 54.83 59.94 60.16 48.20 44.48 39.90 29.06 43.53
1966 31.81 32.75 34.87 42.00 48.84 53.80 56.94 57.97 53.43 41.71 37.53 34.52 43.85
1967 36.61 35.07 37.13 38.60 47.65 56.47 59.84 59.29 54.03 45.55 34.17 29.26 44.47
1968 30.42 34.14 37.71 39.27 49.97 56.27 60.97 59.07 b 53.77 41.13 36.50 27.19 43.87
1969 16.90 27.71 33.65 42.37 49.39 58.17 56.77 55.13 52.67 39.13 33.20 30.65 41.31
1970 26.81 33.43 33.55 37.67 45.71 55.97 61.19 56.55 46.53 37.94 33.00 27.61 41.33
1971 31.52 30.93 33.35 38.37 48.58 51.97 58.39 61.39 47.63 41.19 35.10 27.77 42.18
1972 27.26 29.93 37.65 38.77 48.55 55.33 58.35 58.13 47.73 37.55 35.33 22.45 41.42
1973 23.39 30.04 37.03 39.93 47.74 55.03 58.97 55.84 49.03 42.00 34.97 33.16 42.26
1974 24.42 34.79 35.29 42.30 43.45 54.04 b 56.03 56.35 47.23 35.87 36.50 31.57 a 41.49
1975 26.48 26.61 32.32 35.60 43.61 50.97 61.87 55.67 a 46.90 43.97 34.50 29.23 40.64
1976 30.03 31.79 32.00 37.77 ----- z 48.20 56.47 a 55.93 b 54.80 j 39.00 33.89 b 27.06 39.21
1977 23.00 32.36 35.32 40.93 44.67 a 55.33 56.26 63.03 49.70 39.68 32.70 31.23 42.02
1978 27.52 32.46 36.35 42.03 46.48 54.77 58.39 ----- z 49.87 35.97 24.53 22.19 39.14
1979 10.48 28.89 35.06 ----- z 49.35 ----- z 59.97 59.03 51.70 ----- z 31.27 32.19 39.77
1980 19.26 29.48 34.23 41.97 47.84 52.03 59.84 55.71 51.33 40.29 35.83 30.94 41.56
1981 32.42 30.46 34.48 41.40 45.84 52.77 56.58 58.00 47.53 37.06 31.73 26.55 41.24
1982 22.03 27.71 31.26 33.87 43.06 52.93 56.94 60.32 51.73 39.48 31.57 28.39 39.94
1983 32.00 34.71 39.71 38.33 48.29 54.10 58.77 61.03 47.13 38.45 38.67 18.65 42.49
1984 27.00 31.76 37.94 40.93 44.84 53.37 59.48 58.06 48.90 35.87 33.87 20.29 41.03
1985 22.26 20.61 31.42 42.63 48.06 52.57 61.68 55.81 46.77 37.84 22.00 17.94 38.30
1986 27.00 29.96 37.94 39.80 47.00 56.83 56.84 62.58 51.97 41.97 38.63 30.26 43.40
1987 26.03 32.36 39.26 45.27 52.42 56.47 61.00 57.68 52.37 38.65 37.63 29.55 44.06
1988 27.06 29.48 36.23 43.27 49.48 55.93 60.68 58.16 50.10 46.39 39.00 28.68 43.71
1989 32.48 18.04 35.65 44.37 48.45 58.00 59.71 59.81 50.67 42.16 39.57 30.94 43.32
1990 36.16 30.36 34.45 45.10 48.90 56.27 63.87 62.32 54.77 41.52 39.87 20.61 44.52
1991 23.58 33.96 33.71 42.47 48.77 53.00 60.90 62.42 51.57 39.81 37.13 34.00 43.44
1992 33.58 35.38 37.61 44.47 49.39 59.97 60.97 60.13 50.03 43.06 36.60 26.97 44.85
1993 19.16 24.61 32.97 43.07 53.74 55.40 57.32 58.74 49.40 42.94 26.53 33.10 41.41
1994 33.19 29.46 35.87 45.53 51.74 55.43 62.48 60.84 53.40 42.61 34.40 31.03 44.67
1995 27.48 34.46 34.97 40.47 50.03 55.57 61.87 56.03 54.97 42.13 38.57 31.19 43.98
1996 26.61 24.55 35.00 43.37 47.06 53.80 60.87 58.16 50.17 42.68 32.43 26.10 41.73
1997 27.35 32.86 37.55 40.47 50.94 56.17 60.55 63.61 54.87 42.74 36.90 31.19 44.60
1998 30.71 34.25 37.94 40.73 51.03 ----- z 67.23 62.19 56.83 42.06 41.43 29.45 44.90
1999 35.10 35.64 36.61 39.67 46.68 56.20 59.32 63.52 49.37 40.87 40.07 36.13 44.93
2000 30.65 32.38 35.77 43.33 51.03 56.27 61.23 60.23 51.83 42.71 30.13 28.71 43.69
2001 30.94 30.50 35.90 42.03 49.35 ----- z 62.68 62.58 54.80 43.35 ----- z 33.03 44.52
2002 32.55 29.57 34.84 42.27 48.13 57.83 63.52 59.58 52.27 38.71 35.47 35.19 44.16
2003 35.71 31.86 41.39 44.43 49.90 58.17 63.71 63.23 54.50 ----- z 32.07 31.84 46.07
2004 26.55 31.14 40.10 43.37 51.26 58.10 64.61 64.55 54.03 45.19 33.57 32.81 45.44
2005 27.29 26.89 38.23 43.40 53.10 56.57 62.61 61.16 51.83 46.65 35.80 25.68 44.10
2006 36.19 29.46 36.68 42.83 49.45 58.33 64.39 59.87 53.33 42.97 36.83 27.87 44.85
2007 25.71 33.14 37.19 42.67 50.52 56.97 66.32 60.23 52.87 43.03 34.07 31.90 44.55
2008 24.52 33.55 33.90 38.30 50.87 54.28 a 63.03 60.74 51.70 40.97 37.93 23.23 42.75
2009 29.13 29.54 34.52 41.00 49.13 58.93 63.45 63.42 54.90 40.84 35.10 22.42 43.53
2010 33.74 33.79 35.71 42.13 47.32 55.60 61.81 61.81 56.27 46.06 33.10 30.32 44.80
2011 30.06 28.36 36.81 39.13 46.77 54.87 58.74 62.19 54.73 46.68 33.07 26.87 43.19
2012 26.06 31.86 36.23 43.57 49.00 54.93 63.32 61.06 52.53 43.16 38.40 35.29 44.62
2013 28.39 31.50 36.52 41.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 25.00 z 32.13
Period of Record Statistics
MEAN 25.98 29.94 35.08 40.85 47.78 54.19 59.55 57.99 50.13 41.00 33.84 28.37 42.16
S.D. 6.80 4.48 2.34 2.24 2.46 2.45 2.81 2.88 2.67 2.80 4.15 4.62 1.76
SKEW -1.08 -1.14 -0.18 -0.25 -0.06 -0.27 0.77 0.13 0.34 -0.05 -0.69 -0.77 -0.17
MAX 40.26 40.21 41.39 45.53 53.74 59.97 70.74 64.55 56.83 47.16 41.43 37.59 45.44
MIN 3.77 12.36 29.61 33.87 40.90 47.73 53.65 49.94 44.43 34.97 21.80 11.37 37.66
NO YRS 112 116 114 111 111 109 111 111 112 112 110 112 88