PRIEST RAPIDS DAM, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(456747)

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
1956 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 66.00 p 66.00
1957 51.00 i 66.00 h 67.00 j 90.00 h 98.00 h 101.00 h 102.00 h 98.00 g 98.00 k 82.00 e 61.00 k 60.00 k 102.00
1958 60.00 i 63.00 h 66.00 o 76.00 h 103.00 j 107.00 j 108.00 j 105.00 j 95.00 j 86.00 h 64.00 l 59.00 k 108.00
1959 56.00 j 56.00 h 66.00 e 80.00 h 92.00 m 100.00 i 110.00 h 104.00 j 92.00 j 77.00 i 72.00 l 65.00 i 110.00
1960 56.00 l 61.00 a 82.00 81.00 90.00 99.00 112.00 105.00 94.00 85.00 65.00 54.00 112.00
1961 62.00 65.00 71.00 77.00 90.00 a 110.00 109.00 110.00 92.00 81.00 59.00 59.00 110.00
1962 67.00 63.00 70.00 86.00 82.00 97.00 107.00 102.00 99.00 78.00 70.00 56.00 107.00
1963 58.00 63.00 67.00 71.00 92.00 101.00 97.00 100.00 100.00 84.00 67.00 52.00 101.00
1964 57.00 61.00 71.00 73.00 89.00 93.00 107.00 99.00 89.00 77.00 61.00 57.00 107.00
1965 60.00 67.00 69.00 82.00 93.00 98.00 108.00 104.00 92.00 85.00 65.00 58.00 108.00
1966 56.00 59.00 74.00 77.00 95.00 92.00 101.00 103.00 100.00 80.00 65.00 58.00 103.00
1967 60.00 65.00 65.00 70.00 90.00 97.00 102.00 109.00 95.00 73.00 64.00 62.00 109.00
1968 65.00 63.00 68.00 87.00 91.00 99.00 109.00 103.00 94.00 75.00 60.00 60.00 109.00
1969 46.00 48.00 73.00 78.00 93.00 104.00 102.00 102.00 95.00 71.00 65.00 53.00 104.00
1970 57.00 61.00 67.00 72.00 94.00 104.00 106.00 105.00 89.00 84.00 64.00 59.00 106.00
1971 71.00 67.00 63.00 75.00 89.00 97.00 c 108.00 110.00 88.00 85.00 63.00 c 58.00 i 110.00
1972 61.00 66.00 73.00 75.00 94.00 95.00 103.00 110.00 96.00 82.00 59.00 66.00 110.00
1973 52.00 64.00 66.00 83.00 b 97.00 100.00 109.00 104.00 98.00 73.00 60.00 60.00 109.00
1974 60.00 59.00 68.00 76.00 84.00 100.00 104.00 105.00 96.00 78.00 63.00 61.00 105.00
1975 56.00 58.00 64.00 74.00 91.00 c 95.00 111.00 98.00 94.00 86.00 73.00 63.00 111.00
1976 61.00 58.00 66.00 77.00 88.00 95.00 103.00 98.00 99.00 83.00 69.00 a 59.00 103.00
1977 58.00 68.00 71.00 94.00 82.00 100.00 102.00 109.00 89.00 74.00 66.00 63.00 109.00
1978 51.00 58.00 73.00 74.00 87.00 98.00 104.00 104.00 87.00 78.00 ----- z 54.00 104.00
1979 40.00 61.00 72.00 82.00 93.00 98.00 110.00 101.00 92.00 83.00 57.00 62.00 110.00
1980 53.00 57.00 67.00 87.00 86.00 87.00 105.00 96.00 92.00 86.00 65.00 71.00 105.00
1981 53.00 64.00 68.00 90.00 86.00 94.00 103.00 105.00 95.00 79.00 62.00 58.00 105.00
1982 60.00 64.00 69.00 81.00 89.00 101.00 106.00 100.00 92.00 75.00 63.00 64.00 z 106.00
1983 65.00 f 62.00 67.00 79.00 103.00 90.00 99.00 101.00 87.00 76.00 67.00 47.00 103.00
1984 62.00 59.00 67.00 80.00 95.00 96.00 105.00 103.00 92.00 79.00 60.00 53.00 105.00
1985 40.00 58.00 68.00 82.00 92.00 96.00 106.00 97.00 85.00 75.00 68.00 43.00 106.00
1986 52.00 72.00 74.00 84.00 105.00 105.00 101.00 104.00 95.00 85.00 67.00 54.00 105.00
1987 54.00 59.00 68.00 89.00 97.00 104.00 105.00 102.00 ----- z 84.00 ----- z 62.00 105.00
1988 60.00 66.00 72.00 82.00 90.00 97.00 105.00 100.00 100.00 84.00 70.00 60.00 105.00
1989 65.00 54.00 65.00 84.00 88.00 97.00 100.00 102.00 92.00 79.00 74.00 54.00 102.00
1990 61.00 64.00 76.00 81.00 92.00 95.00 109.00 102.00 97.00 ----- z 69.00 58.00 109.00
1991 60.00 65.00 68.00 82.00 81.00 94.00 103.00 102.00 95.00 82.00 65.00 59.00 103.00
1992 59.00 62.00 77.00 84.00 98.00 109.00 105.00 108.00 90.00 85.00 61.00 54.00 109.00
1993 57.00 49.00 64.00 73.00 100.00 97.00 94.00 100.00 98.00 87.00 67.00 64.00 100.00
1994 58.00 62.00 80.00 88.00 95.00 99.00 109.00 101.00 92.00 81.00 64.00 65.00 109.00
1995 66.00 66.00 70.00 79.00 95.00 97.00 103.00 100.00 96.00 76.00 69.00 57.00 103.00
1996 58.00 61.00 66.00 81.00 86.00 95.00 106.00 106.00 93.00 85.00 63.00 54.00 106.00
1997 57.00 61.00 ----- z 70.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 62.00 70.00
1998 58.00 58.00 71.00 88.00 90.00 98.00 112.00 106.00 105.00 ----- z 69.00 65.00 112.00
1999 63.00 63.00 73.00 83.00 97.00 103.00 107.00 103.00 91.00 79.00 76.00 63.00 107.00
2000 56.00 55.00 72.00 81.00 89.00 102.00 107.00 103.00 92.00 ----- z 62.00 50.00 107.00
2001 55.00 56.00 69.00 85.00 103.00 100.00 106.00 104.00 95.00 82.00 b 69.00 a 60.00 106.00
2002 64.00 67.00 69.00 79.00 82.00 99.00 108.00 100.00 91.00 78.00 66.00 ----- z 108.00
2003 66.00 61.00 76.00 ----- z 87.00 ----- z ----- z 102.00 101.00 ----- z 65.00 52.00 102.00
2004 ----- z 59.00 72.00 ----- z 87.00 98.00 102.00 102.00 87.00 78.00 61.00 65.00 102.00
2005 51.00 58.00 72.00 ----- z 92.00 96.00 102.00 ----- z ----- z 72.00 59.00 54.00 102.00
2006 60.00 59.00 67.00 85.00 101.00 104.00 b 100.00 k ----- z ----- z ----- z ----- z ----- z 104.00
Period of Record Statistics
MEAN 57.86 61.19 69.91 80.48 91.52 98.33 105.05 102.95 93.74 80.10 65.02 58.14 106.16
S.D. 6.25 4.60 4.10 5.68 5.70 4.46 3.83 3.44 4.35 4.39 4.24 5.42 2.87
SKEW -0.86 -0.55 0.79 0.02 0.34 0.31 -0.46 0.39 0.25 -0.31 0.42 -0.34 -0.22
MAX 71.00 72.00 82.00 94.00 105.00 110.00 112.00 110.00 105.00 87.00 76.00 71.00 111.00
MIN 40.00 48.00 63.00 70.00 81.00 87.00 94.00 96.00 85.00 71.00 57.00 43.00 100.00
NO YRS 44 47 47 44 46 45 44 44 43 42 43 43 32