SHASTA DAM, CALIFORNIA

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(048135)

File last updated on Jul 24, 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 ----- z 100.00 100.00 99.00 81.00 75.00 57.00 100.00
1949 65.00 66.00 68.00 87.00 93.00 99.00 105.00 106.00 a 104.00 86.00 90.00 j 66.00 106.00
1950 52.00 68.00 79.00 88.00 96.00 b 108.00 105.00 108.00 110.00 91.00 82.00 64.00 110.00
1951 62.00 65.00 81.00 90.00 98.00 103.00 105.00 a 105.00 103.00 87.00 77.00 70.00 105.00
1952 61.00 68.00 78.00 83.00 94.00 94.00 103.00 100.00 j 103.00 98.00 77.00 63.00 103.00
1953 65.00 70.00 77.00 84.00 f 86.00 93.00 101.00 100.00 102.00 89.00 76.00 65.00 102.00
1954 60.00 75.00 75.00 90.00 98.00 101.00 102.00 102.00 98.00 85.00 79.00 65.00 102.00
1955 63.00 68.00 75.00 78.00 96.00 103.00 103.00 108.00 114.00 93.00 83.00 60.00 114.00
1956 60.00 68.00 77.00 91.00 94.00 111.00 108.00 100.00 100.00 92.00 77.00 73.00 111.00
1957 64.00 74.00 74.00 90.00 91.00 102.00 102.00 100.00 107.00 75.00 70.00 71.00 107.00
1958 64.00 67.00 65.00 82.00 95.00 99.00 105.00 107.00 105.00 95.00 80.00 76.00 107.00
1959 66.00 71.00 79.00 84.00 93.00 108.00 108.00 113.00 101.00 87.00 79.00 73.00 113.00
1960 60.00 63.00 85.00 85.00 92.00 101.00 110.00 107.00 98.00 a 86.00 79.00 68.00 110.00
1961 71.00 71.00 77.00 89.00 91.00 109.00 108.00 108.00 95.00 92.00 77.00 63.00 109.00
1962 72.00 76.00 76.00 86.00 85.00 101.00 106.00 103.00 100.00 85.00 83.00 70.00 106.00
1963 70.00 74.00 72.00 76.00 99.00 101.00 103.00 104.00 100.00 96.00 68.00 67.00 104.00
1964 59.00 70.00 76.00 87.00 87.00 102.00 107.00 102.00 97.00 95.00 71.00 65.00 107.00
1965 68.00 72.00 77.00 85.00 90.00 98.00 105.00 101.00 96.00 94.00 78.00 65.00 105.00
1966 62.00 62.00 85.00 87.00 95.00 106.00 105.00 110.00 103.00 94.00 87.00 59.00 110.00
1967 68.00 71.00 71.00 65.00 97.00 99.00 103.00 106.00 97.00 83.00 84.00 67.00 106.00
1968 75.00 75.00 79.00 84.00 91.00 104.00 105.00 98.00 99.00 88.00 70.00 56.00 105.00
1969 60.00 54.00 78.00 79.00 95.00 100.00 107.00 103.00 100.00 86.00 81.00 66.00 107.00
1970 58.00 72.00 75.00 76.00 97.00 107.00 105.00 104.00 97.00 94.00 75.00 57.00 107.00
1971 73.00 72.00 72.00 80.00 87.00 93.00 103.00 110.00 101.00 95.00 70.00 56.00 110.00
1972 70.00 67.00 81.00 79.00 92.00 101.00 109.00 110.00 97.00 89.00 66.00 66.00 110.00
1973 59.00 66.00 70.00 88.00 107.00 106.00 110.00 102.00 101.00 ----- z 75.00 64.00 110.00
1974 64.00 65.00 73.00 81.00 96.00 102.00 101.00 104.00 100.00 90.00 71.00 62.00 104.00
1975 71.00 69.00 l 72.00 74.00 96.00 98.00 109.00 104.00 104.00 95.00 76.00 74.00 109.00
1976 69.00 73.00 75.00 79.00 97.00 102.00 115.00 98.00 102.00 92.00 81.00 72.00 115.00
1977 74.00 77.00 79.00 88.00 87.00 106.00 107.00 112.00 101.00 88.00 69.00 a 64.00 112.00
1978 66.00 75.00 83.00 83.00 90.00 101.00 105.00 113.00 93.00 92.00 80.00 64.00 113.00
1979 64.00 65.00 80.00 75.00 94.00 101.00 105.00 106.00 106.00 95.00 72.00 67.00 106.00
1980 70.00 a 65.00 76.00 83.00 92.00 95.00 108.00 104.00 97.00 103.00 76.00 73.00 108.00
1981 65.00 72.00 77.00 91.00 92.00 103.00 104.00 115.00 105.00 86.00 76.00 64.00 115.00
1982 63.00 69.00 75.00 84.00 99.00 100.00 103.00 105.00 95.00 89.00 71.00 62.00 105.00
1983 71.00 61.00 65.00 80.00 99.00 93.00 103.00 105.00 99.00 84.00 66.00 59.00 105.00
1984 73.00 74.00 78.00 83.00 98.00 99.00 108.00 106.00 101.00 86.00 66.00 62.00 108.00
1985 66.00 76.00 81.00 95.00 96.00 108.00 109.00 101.00 94.00 92.00 ----- z 71.00 109.00
1986 66.00 80.00 m 83.00 89.00 a 99.00 107.00 104.00 ----- z 105.00 93.00 80.00 70.00 107.00
1987 62.00 73.00 75.00 91.00 99.00 106.00 113.00 108.00 109.00 98.00 77.00 61.00 113.00
1988 69.00 77.00 82.00 ----- z 92.00 102.00 r 113.00 107.00 112.00 97.00 74.00 70.00 113.00
1989 68.00 69.00 70.00 91.00 89.00 95.00 105.00 102.00 96.00 87.00 75.00 68.00 105.00
1990 63.00 75.00 78.00 87.00 93.00 100.00 107.00 110.00 100.00 100.00 74.00 64.00 110.00
1991 69.00 74.00 75.00 78.00 89.00 99.00 109.00 99.00 105.00 99.00 80.00 65.00 109.00
1992 65.00 79.00 76.00 86.00 98.00 107.00 104.00 107.00 99.00 94.00 72.00 64.00 107.00
1993 66.00 67.00 75.00 82.00 87.00 98.00 98.00 106.00 101.00 96.00 78.00 62.00 106.00
1994 72.00 63.00 82.00 86.00 97.00 98.00 105.00 103.00 101.00 90.00 73.00 58.00 105.00
1995 57.00 81.00 73.00 83.00 93.00 98.00 100.00 103.00 99.00 86.00 80.00 63.00 103.00
1996 69.00 76.00 83.00 89.00 95.00 99.00 105.00 107.00 99.00 98.00 77.00 63.00 107.00
1997 64.00 74.00 81.00 83.00 95.00 96.00 102.00 109.00 96.00 85.00 77.00 69.00 109.00
1998 58.00 58.00 76.00 88.00 79.00 90.00 107.00 110.00 110.00 85.00 65.00 71.00 110.00
1999 67.00 57.00 73.00 89.00 94.00 102.00 109.00 103.00 100.00 92.00 75.00 68.00 109.00
2000 60.00 64.00 78.00 87.00 98.00 107.00 104.00 106.00 97.00 94.00 71.00 66.00 107.00
2001 69.00 69.00 79.00 86.00 98.00 105.00 106.00 108.00 98.00 101.00 76.00 61.00 108.00
2002 63.00 72.00 82.00 87.00 95.00 102.00 111.00 110.00 105.00 93.00 76.00 63.00 111.00
2003 70.00 66.00 81.00 81.00 97.00 e 102.00 111.00 104.00 104.00 92.00 67.00 61.00 111.00
2004 62.00 70.00 85.00 93.00 ----- z 98.00 105.00 104.00 102.00 ----- z ----- z 67.00 105.00
2005 66.00 73.00 85.00 77.00 94.00 94.00 108.00 ----- z 97.00 ----- z 73.00 66.00 108.00
2006 65.00 73.00 62.00 92.00 98.00 108.00 105.00 j ----- z ----- z ----- z ----- z ----- z 108.00
Period of Record Statistics
MEAN 65.40 69.77 76.72 84.46 93.93 101.19 105.79 105.38 101.02 91.05 75.33 65.28 108.21
S.D. 4.82 5.54 5.04 5.60 4.58 4.70 3.40 3.93 4.45 5.46 5.00 4.70 3.17
SKEW -0.20 -0.59 -0.62 -0.82 -0.52 -0.12 0.35 0.23 0.79 -0.25 -0.16 0.09 0.33
MAX 75.00 81.00 85.00 95.00 107.00 111.00 115.00 115.00 114.00 103.00 87.00 76.00 115.00
MIN 52.00 54.00 62.00 65.00 79.00 90.00 98.00 98.00 93.00 75.00 65.00 56.00 102.00
NO YRS 58 56 58 56 57 57 58 55 58 55 55 58 47