PORTOLA, CALIFORNIA

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(047085)

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 94.00 88.00 93.00 81.00 66.00 50.00 94.00
1949 46.00 53.00 58.00 76.00 92.00 88.00 94.00 93.00 91.00 82.00 76.00 63.00 94.00
1950 56.00 65.00 71.00 78.00 89.00 99.00 94.00 92.00 97.00 79.00 72.00 68.00 99.00
1951 56.00 67.00 67.00 79.00 87.00 90.00 95.00 94.00 92.00 d 83.00 b 71.00 50.00 95.00
1952 47.00 55.00 59.00 72.00 85.00 88.00 95.00 88.00 93.00 87.00 69.00 56.00 95.00
1953 62.00 66.00 a 67.00 78.00 72.00 84.00 94.00 95.00 93.00 83.00 66.00 62.00 95.00
1954 58.00 64.00 61.00 84.00 90.00 94.00 95.00 97.00 90.00 83.00 71.00 53.00 97.00
1955 49.00 57.00 63.00 a 66.00 84.00 96.00 93.00 95.00 100.00 81.00 70.00 60.00 100.00
1956 53.00 51.00 67.00 72.00 85.00 96.00 95.00 89.00 90.00 80.00 a 74.00 59.00 96.00
1957 55.00 59.00 65.00 73.00 81.00 94.00 93.00 91.00 95.00 70.00 63.00 57.00 95.00
1958 53.00 61.00 58.00 69.00 84.00 90.00 94.00 96.00 ----- z 87.00 a 70.00 70.00 96.00
1959 61.00 c 60.00 67.00 79.00 82.00 93.00 99.00 98.00 90.00 85.00 70.00 67.00 99.00
1960 49.00 c 57.00 e 74.00 a 74.00 84.00 90.00 d 102.00 97.00 89.00 83.00 70.00 f 55.00 102.00
1961 66.00 62.00 63.00 80.00 77.00 99.00 f 99.00 101.00 d 85.00 83.00 f 66.00 58.00 101.00
1962 60.00 59.00 63.00 76.00 75.00 88.00 93.00 96.00 91.00 84.00 71.00 59.00 96.00
1963 60.00 69.00 62.00 66.00 84.00 86.00 91.00 90.00 92.00 87.00 65.00 61.00 92.00
1964 59.00 54.00 70.00 74.00 84.00 88.00 97.00 ----- z 85.00 88.00 67.00 54.00 97.00
1965 54.00 61.00 65.00 75.00 78.00 86.00 92.00 90.00 82.00 85.00 71.00 58.00 92.00
1966 57.00 53.00 80.00 79.00 86.00 91.00 98.00 100.00 93.00 80.00 76.00 53.00 100.00
1967 57.00 62.00 61.00 54.00 87.00 92.00 94.00 94.00 a 88.00 78.00 75.00 49.00 94.00
1968 ----- z 65.00 70.00 76.00 82.00 94.00 98.00 93.00 92.00 82.00 66.00 57.00 98.00
1969 51.00 50.00 66.00 73.00 83.00 92.00 95.00 94.00 93.00 79.00 72.00 58.00 95.00
1970 53.00 60.00 68.00 68.00 81.00 94.00 94.00 94.00 89.00 e 78.00 i 64.00 ----- z 94.00
1971 46.00 u 60.00 54.00 p 64.00 e 73.00 d ----- z 95.00 a 98.00 d 94.00 85.00 l 68.00 q 47.00 m 98.00
1972 48.00 e 53.00 i 72.00 f 72.00 c 86.00 c 94.00 g 101.00 d 102.00 e 85.00 d 75.00 j 53.00 m 47.00 z 102.00
1973 50.00 n 53.00 j ----- z 71.00 o 85.00 h 94.00 l 94.00 m ----- z ----- z ----- z ----- z ----- z 94.00
1974 ----- z 58.00 h 70.00 69.00 c 82.00 c 96.00 94.00 89.00 92.00 ----- z ----- z 40.00 v 96.00
1975 58.00 c 61.00 c 62.00 c 62.00 c 87.00 h 91.00 a 98.00 b 93.00 b 90.00 c 83.00 70.00 e 59.00 d 98.00
1976 58.00 d 56.00 d 66.00 d 70.00 e 87.00 e 91.00 b 96.00 b 95.00 c 97.00 83.00 b 74.00 b 56.00 a 97.00
1977 50.00 b 67.00 c 66.00 h 77.00 c 87.00 b 98.00 e 100.00 c 98.00 c 89.00 e 80.00 k 65.00 d 60.00 v 100.00
1978 52.00 n 55.00 c 73.00 d 75.00 a 82.00 a 90.00 c 98.00 100.00 c 88.00 c 83.00 a 71.00 c 53.00 m 100.00
1979 47.00 b 58.00 c 68.00 c 71.00 84.00 b 90.00 a 100.00 a 96.00 95.00 a 86.00 c 61.00 b 62.00 b 100.00
1980 51.00 61.00 b 63.00 a 75.00 86.00 e 87.00 b 100.00 d 93.00 a 92.00 c 92.00 73.00 j 62.00 d 100.00
1981 59.00 c 63.00 65.00 a 85.00 b ----- z 93.00 a 96.00 a 107.00 e ----- z ----- z 63.00 f 60.00 d 107.00
1982 56.00 66.00 58.00 j 70.00 89.00 90.00 95.00 96.00 90.00 70.00 k 60.00 52.00 96.00
1983 53.00 60.00 63.00 62.00 90.00 84.00 95.00 100.00 90.00 74.00 62.00 52.00 100.00
1984 55.00 d ----- z 65.00 r 77.00 92.00 92.00 103.00 98.00 92.00 79.00 63.00 49.00 103.00
1985 57.00 58.00 59.00 78.00 79.00 a 93.00 96.00 93.00 83.00 82.00 68.00 54.00 96.00
1986 63.00 72.00 72.00 77.00 89.00 90.00 89.00 89.00 89.00 75.00 68.00 61.00 90.00
1987 58.00 61.00 67.00 79.00 82.00 93.00 94.00 93.00 89.00 84.00 66.00 54.00 94.00
1988 54.00 62.00 71.00 76.00 82.00 96.00 98.00 97.00 94.00 83.00 69.00 59.00 98.00
1989 55.00 57.00 58.00 78.00 79.00 83.00 97.00 85.00 83.00 76.00 68.00 57.00 97.00
1990 62.00 57.00 65.00 75.00 80.00 88.00 92.00 99.00 90.00 81.00 71.00 59.00 99.00
1991 56.00 68.00 60.00 66.00 77.00 89.00 96.00 87.00 90.00 85.00 73.00 58.00 96.00
1992 60.00 65.00 66.00 80.00 87.00 93.00 94.00 97.00 95.00 82.00 67.00 54.00 97.00
1993 42.00 43.00 65.00 73.00 77.00 87.00 87.00 98.00 92.00 84.00 66.00 55.00 98.00
1994 60.00 54.00 74.00 77.00 83.00 88.00 98.00 91.00 87.00 76.00 68.00 47.00 98.00
1995 51.00 68.00 60.00 67.00 77.00 90.00 91.00 91.00 90.00 79.00 73.00 59.00 91.00
1996 61.00 65.00 68.00 a 76.00 83.00 89.00 95.00 96.00 88.00 90.00 69.00 54.00 96.00
1997 54.00 58.00 70.00 72.00 83.00 82.00 92.00 98.00 83.00 79.00 73.00 49.00 98.00
1998 55.00 44.00 62.00 74.00 72.00 79.00 97.00 97.00 94.00 74.00 62.00 54.00 97.00
1999 56.00 54.00 61.00 72.00 83.00 87.00 ----- z 91.00 88.00 81.00 a 71.00 56.00 91.00
2000 50.00 57.00 66.00 75.00 88.00 94.00 94.00 96.00 89.00 85.00 59.00 54.00 96.00
2001 56.00 63.00 69.00 75.00 87.00 92.00 96.00 95.00 89.00 r 85.00 70.00 53.00 96.00
2002 56.00 65.00 71.00 76.00 85.00 92.00 103.00 98.00 90.00 81.00 65.00 55.00 103.00
2003 58.00 64.00 73.00 65.00 94.00 92.00 100.00 95.00 90.00 82.00 63.00 55.00 100.00
2004 55.00 47.00 77.00 80.00 81.00 86.00 92.00 94.00 87.00 82.00 62.00 57.00 94.00
2005 46.00 c 52.00 72.00 67.00 83.00 84.00 95.00 92.00 86.00 79.00 67.00 ----- z 95.00
2006 55.00 60.00 56.00 b 74.00 a 88.00 99.00 q 95.00 y ----- z ----- z ----- z ----- z ----- z 99.00
Period of Record Statistics
MEAN 55.04 59.46 66.10 73.37 83.44 90.23 95.62 94.68 90.26 81.88 68.14 56.66 96.38
S.D. 4.90 6.13 5.27 5.74 4.91 4.12 3.26 4.12 3.72 4.16 4.21 4.83 2.85
SKEW -0.38 -0.55 0.29 -0.82 -0.35 -0.32 0.16 0.11 -0.07 -0.33 -0.17 0.48 -0.13
MAX 66.00 72.00 80.00 85.00 94.00 99.00 103.00 107.00 100.00 92.00 76.00 70.00 103.00
MIN 42.00 43.00 56.00 54.00 72.00 79.00 87.00 85.00 82.00 70.00 59.00 47.00 90.00
NO YRS 53 54 52 57 55 53 56 56 54 49 51 50 34