RICHLAND, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(457015)

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 107.00 101.00 97.00 100.00 e 83.00 63.00 56.00 107.00
1949 51.00 59.00 68.00 88.00 100.00 103.00 106.00 108.00 a 101.00 75.00 74.00 a 62.00 108.00
1950 49.00 62.00 67.00 79.00 94.00 102.00 105.00 105.00 106.00 80.00 61.00 64.00 106.00
1951 60.00 a 66.00 68.00 86.00 97.00 95.00 106.00 a 102.00 96.00 80.00 61.00 64.00 106.00
1952 50.00 59.00 74.00 90.00 94.00 97.00 108.00 102.00 99.00 88.00 66.00 56.00 108.00
1953 64.00 66.00 72.00 81.00 91.00 89.00 105.00 106.00 97.00 82.00 73.00 60.00 106.00
1954 61.00 67.00 69.00 84.00 98.00 97.00 102.00 103.00 94.00 75.00 65.00 55.00 103.00
1955 54.00 60.00 68.00 78.00 89.00 104.00 109.00 104.00 101.00 80.00 68.00 64.00 109.00
1956 62.00 60.00 69.00 89.00 99.00 98.00 107.00 106.00 a 96.00 81.00 65.00 60.00 107.00
1957 49.00 67.00 65.00 92.00 99.00 101.00 102.00 99.00 98.00 84.00 64.00 61.00 102.00
1958 62.00 68.00 67.00 80.00 102.00 110.00 110.00 107.00 100.00 89.00 67.00 66.00 110.00
1959 61.00 63.00 68.00 80.00 91.00 97.00 105.00 102.00 92.00 81.00 73.00 65.00 105.00
1960 53.00 60.00 82.00 83.00 88.00 94.00 107.00 102.00 91.00 85.00 67.00 52.00 107.00
1961 61.00 65.00 73.00 77.00 95.00 108.00 108.00 113.00 91.00 82.00 59.00 a 59.00 113.00
1962 62.00 60.00 68.00 86.00 81.00 99.00 104.00 101.00 95.00 77.00 69.00 55.00 104.00
1963 59.00 63.00 73.00 76.00 93.00 102.00 95.00 100.00 97.00 86.00 64.00 54.00 102.00
1964 55.00 65.00 78.00 75.00 86.00 95.00 104.00 95.00 89.00 78.00 62.00 58.00 104.00
1965 64.00 69.00 72.00 83.00 91.00 92.00 100.00 103.00 90.00 84.00 69.00 57.00 103.00
1966 56.00 63.00 77.00 81.00 95.00 94.00 101.00 102.00 97.00 86.00 64.00 59.00 102.00
1967 65.00 63.00 70.00 72.00 93.00 98.00 104.00 105.00 98.00 80.00 73.00 63.00 105.00
1968 67.00 68.00 70.00 90.00 88.00 99.00 110.00 100.00 96.00 84.00 62.00 61.00 110.00
1969 52.00 50.00 76.00 78.00 93.00 99.00 99.00 96.00 95.00 75.00 66.00 56.00 99.00
1970 54.00 61.00 68.00 71.00 93.00 101.00 103.00 100.00 90.00 87.00 62.00 63.00 103.00
1971 71.00 73.00 67.00 76.00 90.00 97.00 105.00 106.00 90.00 82.00 62.00 58.00 106.00
1972 62.00 71.00 76.00 78.00 95.00 98.00 100.00 106.00 94.00 83.00 63.00 65.00 106.00
1973 61.00 64.00 70.00 80.00 95.00 98.00 104.00 101.00 98.00 78.00 67.00 59.00 104.00
1974 65.00 61.00 74.00 77.00 85.00 102.00 102.00 106.00 98.00 83.00 69.00 60.00 106.00
1975 60.00 62.00 65.00 74.00 89.00 96.00 108.00 97.00 95.00 81.00 77.00 a 65.00 108.00
1976 64.00 63.00 72.00 78.00 90.00 100.00 101.00 95.00 99.00 88.00 69.00 61.00 101.00
1977 63.00 71.00 73.00 92.00 80.00 99.00 98.00 106.00 88.00 78.00 69.00 63.00 106.00
1978 52.00 60.00 77.00 76.00 89.00 99.00 105.00 a 105.00 88.00 79.00 70.00 54.00 105.00
1979 39.00 62.00 75.00 81.00 90.00 101.00 109.00 100.00 92.00 84.00 58.00 58.00 109.00
1980 52.00 60.00 65.00 89.00 87.00 87.00 103.00 98.00 ----- z 88.00 68.00 65.00 103.00
1981 53.00 64.00 69.00 86.00 90.00 93.00 100.00 105.00 96.00 80.00 70.00 59.00 105.00
1982 59.00 68.00 a 68.00 81.00 87.00 99.00 104.00 102.00 93.00 78.00 65.00 63.00 104.00
1983 64.00 63.00 67.00 78.00 101.00 90.00 99.00 100.00 85.00 74.00 67.00 50.00 101.00
1984 60.00 60.00 65.00 84.00 93.00 94.00 104.00 101.00 93.00 a 85.00 60.00 53.00 104.00
1985 41.00 61.00 69.00 83.00 a 95.00 102.00 106.00 97.00 84.00 78.00 67.00 44.00 106.00
1986 56.00 73.00 76.00 86.00 104.00 102.00 98.00 a 102.00 90.00 83.00 66.00 53.00 a 104.00
1987 54.00 59.00 71.00 89.00 96.00 101.00 98.00 r 100.00 100.00 83.00 64.00 63.00 101.00
1988 57.00 69.00 69.00 81.00 92.00 93.00 101.00 99.00 95.00 86.00 66.00 59.00 101.00
1989 63.00 52.00 68.00 79.00 85.00 93.00 95.00 99.00 91.00 80.00 73.00 58.00 99.00
1990 65.00 63.00 72.00 78.00 86.00 94.00 105.00 103.00 95.00 80.00 68.00 56.00 105.00
1991 57.00 62.00 68.00 79.00 77.00 89.00 100.00 98.00 90.00 86.00 64.00 57.00 100.00
1992 59.00 62.00 72.00 81.00 92.00 103.00 102.00 104.00 87.00 82.00 60.00 54.00 104.00
1993 55.00 50.00 67.00 72.00 99.00 93.00 93.00 96.00 93.00 81.00 64.00 66.00 99.00
1994 ----- z 58.00 76.00 84.00 89.00 94.00 104.00 ----- z ----- z 78.00 61.00 64.00 104.00
1995 64.00 72.00 ----- z ----- z 91.00 ----- z 100.00 ----- z ----- z ----- z 66.00 60.00 100.00
1996 56.00 67.00 66.00 81.00 81.00 91.00 103.00 102.00 90.00 81.00 65.00 50.00 103.00
1997 55.00 63.00 75.00 74.00 88.00 91.00 96.00 100.00 89.00 75.00 61.00 60.00 100.00
1998 56.00 57.00 68.00 89.00 89.00 95.00 106.00 106.00 98.00 78.00 ----- z 58.00 106.00
1999 60.00 63.00 71.00 79.00 92.00 98.00 100.00 100.00 89.00 78.00 76.00 61.00 100.00
2000 53.00 54.00 65.00 79.00 85.00 95.00 98.00 98.00 92.00 76.00 60.00 48.00 98.00
2001 53.00 55.00 70.00 82.00 99.00 94.00 100.00 100.00 ----- z 83.00 67.00 59.00 100.00
2002 59.00 65.00 68.00 75.00 83.00 101.00 106.00 98.00 92.00 78.00 62.00 61.00 106.00
2003 63.00 62.00 78.00 78.00 90.00 94.00 103.00 98.00 96.00 84.00 64.00 49.00 103.00
2004 60.00 57.00 74.00 81.00 83.00 97.00 102.00 101.00 93.00 80.00 63.00 61.00 102.00
2005 55.00 60.00 74.00 80.00 94.00 93.00 100.00 99.00 88.00 73.00 58.00 51.00 100.00
2006 59.00 58.00 66.00 83.00 b 96.00 a 100.00 b 99.00 k ----- z ----- z ----- z ----- z ----- z 100.00
Period of Record Statistics
MEAN 57.82 62.55 70.67 81.09 91.33 97.36 102.82 101.54 93.89 81.16 65.72 58.53 104.25
S.D. 5.99 5.11 4.01 5.14 5.73 4.76 3.85 3.64 4.53 3.88 4.42 4.95 3.25
SKEW -0.73 -0.17 0.59 0.32 -0.15 0.24 -0.28 0.48 0.11 0.00 0.51 -0.68 0.22
MAX 71.00 73.00 82.00 92.00 104.00 110.00 110.00 113.00 106.00 89.00 77.00 66.00 113.00
MIN 39.00 50.00 65.00 71.00 77.00 87.00 93.00 95.00 84.00 73.00 58.00 44.00 98.00
NO YRS 57 58 57 57 58 58 57 56 54 57 57 58 51