RITZVILLE, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(457059)

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 99.00 a 94.00 95.00 98.00 m 76.00 53.00 46.00 99.00
1949 36.00 56.00 69.00 81.00 95.00 100.00 103.00 105.00 99.00 m 71.00 65.00 53.00 105.00
1950 41.00 49.00 56.00 73.00 83.00 95.00 b 101.00 98.00 101.00 74.00 54.00 55.00 101.00
1951 49.00 56.00 63.00 76.00 90.00 89.00 104.00 a 100.00 91.00 b 82.00 54.00 56.00 104.00
1952 42.00 55.00 67.00 83.00 85.00 93.00 104.00 102.00 99.00 87.00 64.00 48.00 104.00
1953 54.00 56.00 70.00 77.00 86.00 86.00 102.00 a 104.00 100.00 81.00 a 65.00 50.00 c 104.00
1954 49.00 58.00 62.00 77.00 94.00 88.00 98.00 99.00 b 89.00 a 75.00 60.00 46.00 99.00
1955 46.00 49.00 57.00 71.00 83.00 100.00 105.00 a 99.00 g 99.00 72.00 60.00 48.00 105.00
1956 48.00 44.00 65.00 84.00 92.00 91.00 104.00 a 102.00 91.00 79.00 50.00 a 53.00 a 104.00
1957 38.00 58.00 61.00 85.00 92.00 95.00 97.00 93.00 94.00 80.00 56.00 52.00 a 97.00
1958 52.00 62.00 64.00 72.00 96.00 100.00 103.00 102.00 97.00 85.00 67.00 51.00 103.00
1959 53.00 53.00 61.00 75.00 83.00 94.00 106.00 103.00 91.00 72.00 63.00 55.00 a 106.00
1960 51.00 52.00 75.00 77.00 86.00 92.00 108.00 102.00 92.00 81.00 60.00 47.00 b 108.00
1961 54.00 55.00 64.00 75.00 86.00 105.00 101.00 112.00 84.00 81.00 54.00 52.00 112.00
1962 53.00 58.00 65.00 81.00 77.00 95.00 102.00 99.00 93.00 81.00 56.00 51.00 102.00
1963 50.00 57.00 67.00 75.00 88.00 99.00 94.00 99.00 97.00 85.00 56.00 41.00 99.00
1964 43.00 51.00 75.00 67.00 85.00 90.00 105.00 95.00 88.00 81.00 57.00 48.00 105.00
1965 41.00 61.00 63.00 78.00 85.00 93.00 101.00 103.00 ----- z 72.00 k 68.00 51.00 103.00
1966 49.00 54.00 71.00 74.00 93.00 90.00 94.00 102.00 96.00 78.00 61.00 51.00 102.00
1967 55.00 59.00 60.00 64.00 82.00 94.00 105.00 103.00 102.00 80.00 65.00 47.00 105.00
1968 54.00 61.00 65.00 78.00 83.00 91.00 102.00 96.00 93.00 78.00 52.00 54.00 102.00
1969 39.00 40.00 69.00 79.00 88.00 95.00 94.00 97.00 93.00 70.00 58.00 d 48.00 97.00
1970 45.00 54.00 58.00 61.00 84.00 100.00 101.00 102.00 87.00 84.00 62.00 47.00 102.00
1971 60.00 60.00 55.00 a 71.00 88.00 95.00 102.00 104.00 86.00 85.00 57.00 44.00 104.00
1972 50.00 57.00 70.00 73.00 91.00 93.00 96.00 105.00 88.00 78.00 55.00 51.00 105.00
1973 50.00 57.00 62.00 72.00 92.00 101.00 101.00 100.00 97.00 71.00 57.00 49.00 101.00
1974 52.00 51.00 65.00 69.00 76.00 98.00 99.00 99.00 93.00 77.00 57.00 49.00 99.00
1975 44.00 49.00 59.00 66.00 82.00 87.00 107.00 92.00 92.00 87.00 69.00 53.00 107.00
1976 55.00 52.00 62.00 73.00 82.00 96.00 100.00 93.00 96.00 86.00 61.00 53.00 100.00
1977 50.00 63.00 64.00 92.00 80.00 96.00 97.00 104.00 84.00 71.00 60.00 53.00 104.00
1978 45.00 52.00 71.00 72.00 78.00 95.00 99.00 102.00 87.00 74.00 60.00 b 39.00 102.00
1979 34.00 52.00 67.00 77.00 87.00 97.00 106.00 97.00 91.00 82.00 57.00 50.00 106.00
1980 40.00 54.00 58.00 83.00 86.00 84.00 103.00 95.00 88.00 88.00 68.00 58.00 103.00
1981 54.00 54.00 67.00 79.00 84.00 90.00 96.00 102.00 100.00 70.00 67.00 48.00 102.00
1982 42.00 57.00 62.00 74.00 83.00 96.00 102.00 101.00 93.00 73.00 55.00 55.00 102.00
1983 53.00 59.00 62.00 73.00 99.00 90.00 97.00 100.00 93.00 69.00 60.00 38.00 100.00
1984 51.00 51.00 62.00 80.00 87.00 91.00 107.00 103.00 88.00 80.00 54.00 39.00 107.00
1985 33.00 46.00 62.00 78.00 92.00 95.00 102.00 95.00 80.00 71.00 57.00 36.00 102.00
1986 46.00 61.00 65.00 79.00 99.00 100.00 96.00 100.00 88.00 76.00 58.00 44.00 100.00
1987 44.00 55.00 65.00 89.00 94.00 97.00 100.00 98.00 98.00 86.00 62.00 53.00 100.00
1988 47.00 61.00 62.00 79.00 90.00 93.00 101.00 103.00 103.00 85.00 70.00 48.00 103.00
1989 52.00 47.00 61.00 77.00 84.00 91.00 96.00 100.00 90.00 76.00 64.00 52.00 100.00
1990 53.00 53.00 67.00 74.00 84.00 93.00 104.00 103.00 94.00 75.00 64.00 47.00 104.00
1991 42.00 54.00 59.00 73.00 71.00 83.00 99.00 98.00 91.00 84.00 56.00 48.00 99.00
1992 52.00 56.00 73.00 77.00 91.00 102.00 99.00 102.00 89.00 87.00 57.00 40.00 102.00
1993 41.00 44.00 58.00 66.00 95.00 93.00 90.00 92.00 91.00 82.00 59.00 56.00 95.00
1994 53.00 58.00 73.00 82.00 87.00 96.00 104.00 101.00 90.00 74.00 53.00 50.00 104.00
1995 50.00 66.00 65.00 71.00 87.00 89.00 98.00 93.00 95.00 72.00 62.00 52.00 98.00
1996 51.00 53.00 60.00 79.00 78.00 87.00 101.00 101.00 88.00 81.00 60.00 42.00 101.00
1997 45.00 58.00 67.00 73.00 86.00 83.00 96.00 99.00 92.00 83.00 60.00 47.00 99.00
1998 50.00 57.00 65.00 83.00 86.00 89.00 105.00 105.00 99.00 83.00 59.00 50.00 105.00
1999 50.00 50.00 74.00 78.00 90.00 95.00 100.00 100.00 90.00 76.00 69.00 53.00 100.00
2000 46.00 51.00 62.00 75.00 79.00 92.00 100.00 100.00 96.00 73.00 53.00 41.00 100.00
2001 42.00 47.00 71.00 79.00 95.00 92.00 100.00 102.00 96.00 82.00 64.00 47.00 102.00
2002 51.00 54.00 59.00 69.00 79.00 101.00 106.00 96.00 94.00 72.00 59.00 55.00 106.00
2003 58.00 54.00 ----- z 73.00 91.00 95.00 102.00 99.00 99.00 85.00 58.00 46.00 102.00
2004 47.00 56.00 72.00 80.00 79.00 97.00 100.00 102.00 92.00 80.00 57.00 53.00 102.00
2005 50.00 61.00 69.00 79.00 88.00 97.00 100.00 99.00 84.00 77.00 51.00 49.00 100.00
2006 51.00 51.00 61.00 77.00 95.00 98.00 b 98.00 k ----- z ----- z ----- z ----- z ----- z 98.00
Period of Record Statistics
MEAN 47.86 54.47 64.61 75.98 86.74 93.92 100.67 99.96 92.58 78.67 59.47 48.93 102.26
S.D. 5.85 5.08 4.97 5.73 5.96 4.80 3.86 3.81 5.02 5.40 4.90 4.94 3.09
SKEW -0.54 -0.40 0.32 0.02 -0.09 -0.22 -0.37 -0.05 -0.03 -0.09 0.33 -0.68 0.39
MAX 60.00 66.00 75.00 92.00 99.00 105.00 108.00 112.00 103.00 88.00 70.00 58.00 112.00
MIN 33.00 40.00 55.00 61.00 71.00 83.00 90.00 92.00 80.00 69.00 50.00 36.00 95.00
NO YRS 58 58 57 58 58 59 58 57 55 57 58 58 53