PORTOLA, CALIFORNIA

Period of Record General Climate Summary - Temperature

Station:(047085) PORTOLA
From Year=1948 To Year=2006
Monthly Averages Daily Extremes Monthly Extremes Max. Temp. Min. Temp.
Max. Min. Mean High Date Low Date Highest
Mean		 Year Lowest
Mean		 Year >=
90 F		 <=
32 F		 <=
32 F		 <=
0 F
F F F F dd/yyyy
or
yyyymmdd		 F dd/yyyy
or
yyyymmdd		 F - F - # Days # Days # Days # Days
January 41.8 17.9 29.9 66 10/1961 -22 04/1971 39.5 1986 16.0 1949 0.0 3.8 28.6 2.0
February 46.0 20.6 33.3 72 28/1986 -21 12/1949 43.2 1963 23.4 1956 0.0 1.7 25.9 0.7
March 51.1 24.4 37.8 80 31/1966 -12 20/1952 44.5 1978 30.1 1952 0.0 0.4 27.6 0.2
April 58.5 27.8 43.1 85 30/1981 4 07/1975 48.2 1987 34.6 1967 0.0 0.0 24.0 0.0
May 67.4 33.2 50.3 94 29/2003 13 03/1950 57.1 1992 43.5 1998 0.1 0.0 14.9 0.0
June 76.7 38.1 57.3 99 30/1950 20 05/1976 61.4 1981 52.5 1953 1.9 0.0 5.5 0.0
July 85.8 41.6 63.7 103 04/1984 22 01/1976 68.4 1984 58.8 1983 9.2 0.0 1.6 0.0
August 84.4 39.9 62.3 107 08/1981 23 29/1960 67.0 1958 57.9 1948 6.5 0.0 3.2 0.0
September 78.2 35.3 56.8 100 02/1955 14 30/1950 61.2 1953 50.2 1986 2.1 0.0 9.4 0.0
October 67.6 29.3 48.4 92 01/1980 9 30/1948 53.3 1988 44.1 1984 0.1 0.0 22.5 0.0
November 52.4 24.0 38.3 76 02/1949 0 29/1975 44.6 1950 29.1 1994 0.0 0.5 26.1 0.0
December 43.6 19.5 31.5 70 03/1958 -28 09/1972 39.0 1950 21.1 1990 0.0 2.8 28.4 1.0
Annual 62.8 29.3 46.1 107 19810808 -28 19721209 47.8 1986 44.4 1993 19.9 9.2 217.8 4.0
Winter 43.8 19.3 31.6 72 19860228 -28 19721209 36.9 1963 21.8 1949 0.0 8.3 83.0 3.8
Spring 59.0 28.5 43.7 94 20030529 -12 19520320 48.4 1992 40.3 1991 0.1 0.5 66.5 0.2
Summer 82.3 39.8 61.1 107 19810808 20 19760605 64.0 1981 58.1 1963 17.6 0.0 10.3 0.0
Fall 66.1 29.5 47.8 100 19550902 0 19751129 50.9 1967 43.3 1985 2.1 0.5 58.0 0.0
Table updated on Jul 28, 2006
For monthly and annual means, thresholds, and sums:
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Seasons are climatological not calendar seasons
Winter = Dec., Jan., and Feb. Spring = Mar., Apr., and May
Summer = Jun., Jul., and Aug. Fall = Sep., Oct., and Nov. 






Western Regional Climate Center, wrcc@dri.edu