KENNEWICK, WASHINGTON

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(454154)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1948 ----- z ----- z ----- z ----- z ----- z 51.00 a 47.00 c 49.00 33.00 22.00 21.00 4.00 4.00
1949 -11.00 3.00 26.00 30.00 a 35.00 40.00 46.00 45.00 37.00 21.00 26.00 13.00 -11.00
1950 -19.00 -23.00 18.00 25.00 37.00 e 43.00 b 46.00 47.00 34.00 27.00 19.00 30.00 m -23.00
1951 4.00 18.00 22.00 24.00 36.00 39.00 48.00 47.00 38.00 22.00 19.00 6.00 4.00
1952 2.00 20.00 20.00 22.00 37.00 43.00 47.00 44.00 36.00 30.00 15.00 22.00 2.00
1953 28.00 23.00 23.00 25.00 37.00 46.00 49.00 50.00 j 39.00 34.00 25.00 25.00 23.00
1954 -10.00 26.00 15.00 b 29.00 30.00 39.00 a 47.00 m 45.00 33.00 26.00 23.00 18.00 -10.00
1955 19.00 17.00 10.00 26.00 30.00 a 45.00 47.00 f 44.00 l 34.00 a 31.00 0.00 13.00 0.00
1956 -7.00 -10.00 k 20.00 25.00 37.00 45.00 51.00 n 46.00 36.00 a 29.00 16.00 10.00 -10.00
1957 -17.00 6.00 29.00 33.00 47.00 46.00 47.00 44.00 d 32.00 31.00 20.00 21.00 -17.00
1958 19.00 25.00 22.00 34.00 39.00 50.00 53.00 50.00 i 36.00 28.00 11.00 a 22.00 11.00
1959 1.00 a 24.00 25.00 27.00 32.00 45.00 48.00 45.00 41.00 28.00 9.00 15.00 1.00
1960 4.00 b 9.00 17.00 32.00 39.00 44.00 50.00 45.00 37.00 32.00 26.00 19.00 4.00
1961 18.00 28.00 26.00 29.00 41.00 48.00 50.00 54.00 36.00 28.00 14.00 c 7.00 7.00
1962 5.00 12.00 20.00 32.00 33.00 43.00 43.00 49.00 40.00 35.00 22.00 18.00 5.00
1963 -1.00 12.00 24.00 32.00 38.00 49.00 48.00 50.00 42.00 29.00 20.00 14.00 -1.00
1964 22.00 20.00 22.00 b 24.00 34.00 43.00 47.00 44.00 40.00 30.00 26.00 -4.00 -4.00
1965 18.00 24.00 11.00 32.00 37.00 48.00 50.00 41.00 32.00 34.00 25.00 17.00 11.00
1966 19.00 19.00 17.00 28.00 36.00 40.00 45.00 44.00 44.00 32.00 22.00 24.00 17.00
1967 24.00 19.00 20.00 31.00 36.00 49.00 51.00 48.00 41.00 32.00 12.00 9.00 9.00
1968 12.00 12.00 27.00 28.00 37.00 45.00 50.00 51.00 b 41.00 33.00 26.00 -4.00 -4.00
1969 -5.00 7.00 22.00 33.00 36.00 48.00 49.00 44.00 39.00 24.00 23.00 20.00 -5.00
1970 11.00 24.00 25.00 27.00 36.00 45.00 50.00 50.00 32.00 24.00 14.00 13.00 11.00
1971 10.00 15.00 19.00 26.00 39.00 44.00 42.00 50.00 38.00 17.00 20.00 10.00 10.00
1972 2.00 5.00 26.00 24.00 31.00 49.00 47.00 48.00 32.00 22.00 27.00 -5.00 -5.00
1973 2.00 21.00 27.00 27.00 35.00 43.00 47.00 45.00 39.00 29.00 22.00 18.00 2.00
1974 -3.00 25.00 22.00 30.00 36.00 44.00 b 46.00 49.00 38.00 27.00 25.00 20.00 a -3.00
1975 16.00 15.00 20.00 24.00 35.00 38.00 52.00 50.00 a 39.00 32.00 21.00 19.00 15.00
1976 20.00 12.00 15.00 31.00 ----- z 40.00 48.00 a 47.00 b 46.00 j 23.00 14.00 b 16.00 12.00
1977 7.00 24.00 28.00 31.00 34.00 a 42.00 45.00 49.00 43.00 34.00 12.00 18.00 7.00
1978 -1.00 24.00 27.00 33.00 37.00 48.00 52.00 ----- z 37.00 25.00 11.00 0.00 -1.00
1979 -5.00 -3.00 27.00 ----- z 42.00 ----- z 48.00 53.00 42.00 ----- z 22.00 23.00 -5.00
1980 0.00 15.00 26.00 29.00 40.00 40.00 52.00 45.00 44.00 31.00 25.00 9.00 0.00
1981 27.00 13.00 25.00 30.00 36.00 46.00 45.00 48.00 38.00 24.00 21.00 15.00 13.00
1982 0.00 9.00 24.00 25.00 30.00 44.00 45.00 56.00 42.00 26.00 22.00 19.00 0.00
1983 20.00 22.00 28.00 29.00 40.00 48.00 49.00 54.00 30.00 29.00 24.00 -7.00 -7.00
1984 13.00 23.00 25.00 36.00 35.00 40.00 51.00 47.00 38.00 24.00 25.00 2.00 2.00
1985 9.00 -3.00 21.00 32.00 34.00 45.00 54.00 48.00 31.00 25.00 -8.00 -4.00 -8.00
1986 20.00 20.00 30.00 30.00 30.00 47.00 47.00 55.00 45.00 33.00 20.00 23.00 20.00
1987 12.00 23.00 28.00 35.00 44.00 45.00 55.00 51.00 42.00 31.00 25.00 15.00 12.00
1988 16.00 13.00 26.00 34.00 40.00 46.00 51.00 51.00 42.00 30.00 29.00 13.00 13.00
1989 21.00 -6.00 15.00 37.00 41.00 51.00 54.00 55.00 45.00 29.00 29.00 22.00 -6.00
1990 27.00 13.00 26.00 37.00 39.00 49.00 53.00 52.00 46.00 33.00 29.00 -6.00 -6.00
1991 9.00 27.00 28.00 37.00 42.00 42.00 53.00 50.00 40.00 24.00 25.00 20.00 9.00
1992 22.00 26.00 32.00 32.00 39.00 50.00 55.00 47.00 39.00 32.00 24.00 18.00 18.00
1993 3.00 11.00 13.00 35.00 45.00 49.00 53.00 47.00 39.00 33.00 6.00 27.00 3.00
1994 24.00 10.00 25.00 38.00 40.00 48.00 52.00 55.00 47.00 33.00 21.00 14.00 10.00
1995 14.00 9.00 25.00 34.00 44.00 47.00 54.00 49.00 43.00 27.00 23.00 18.00 9.00
1996 -11.00 -11.00 23.00 35.00 36.00 45.00 51.00 51.00 37.00 29.00 22.00 -6.00 -11.00
1997 13.00 23.00 24.00 27.00 37.00 50.00 53.00 57.00 47.00 32.00 29.00 22.00 13.00
1998 12.00 27.00 28.00 35.00 41.00 ----- z 59.00 55.00 49.00 30.00 33.00 7.00 7.00
1999 25.00 27.00 30.00 31.00 37.00 46.00 50.00 53.00 37.00 31.00 32.00 29.00 25.00
2000 21.00 25.00 29.00 34.00 39.00 45.00 53.00 53.00 37.00 33.00 21.00 18.00 18.00
2001 26.00 22.00 23.00 33.00 39.00 ----- z 56.00 52.00 44.00 37.00 ----- z 23.00 22.00
2002 22.00 22.00 23.00 33.00 35.00 45.00 52.00 53.00 42.00 18.00 17.00 29.00 17.00
2003 29.00 18.00 32.00 32.00 37.00 50.00 55.00 56.00 47.00 ----- z 18.00 15.00 15.00
2004 -6.00 27.00 31.00 37.00 43.00 50.00 56.00 57.00 46.00 36.00 23.00 24.00 -6.00
2005 12.00 21.00 30.00 36.00 44.00 50.00 56.00 54.00 44.00 38.00 25.00 10.00 10.00
2006 28.00 13.00 29.00 35.00 36.00 a 52.00 56.00 j ----- z ----- z ----- z ----- z ----- z 13.00
Period of Record Statistics
MEAN 10.21 15.82 23.64 30.74 37.40 45.57 50.09 49.52 39.33 28.91 20.49 13.86 4.51
S.D. 12.43 10.40 5.13 4.13 3.85 3.54 3.69 4.02 4.60 4.63 7.40 9.52 9.56
SKEW -0.42 -1.46 -0.70 -0.22 0.14 -0.27 0.06 0.11 -0.03 -0.47 -1.45 -0.76 -0.06
MAX 29.00 28.00 32.00 38.00 47.00 52.00 59.00 57.00 49.00 38.00 33.00 29.00 25.00
MIN -19.00 -23.00 10.00 22.00 30.00 38.00 42.00 41.00 30.00 17.00 -8.00 -7.00 -17.00
NO YRS 58 57 58 57 57 56 55 54 57 56 57 57 45