Portola, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 41° -22° (1971) 66° (1961) 4.17" 16.1"
February 21° 45° -21° (1949) 72° (1986) 3.87" 12.8"
March 26° 49° -12° (1952) 80° (1966) 3.61" 10.2"
April 29° 57° 4° (1975) 85° (1981) 1.23" 4"
May 34° 66° 13° (1950) 94° (2003) 1.12" 1.1"
June 39° 76° 20° (2002) 111° (2006) 0.54" 0"
July 42° 84° 22° (1976) 103° (2002) 0.34" 0"
August 40° 84° 23° (1960) 107° (1981) 0.43" 0"
September 35° 76° 14° (1950) 100° (1955) 0.78" 0.1"
October 29° 65° 9° (1971) 92° (1980) 1.22" 0.2"
November 23° 50° 0° (1975) 76° (1949) 2.5" 5.6"
December 18° 42° -28° (1972) 70° (1958) 3.28" 18.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Nov 1 25° 57° 14° (2003) 75° (1949) 0.06" NA
Nov 2 25° 56° 10° (2002) 76° (1949) 0.06" NA
Nov 3 25° 56° 16° (1994) 76° (1949) 0.07" NA
Nov 4 25° 55° 12° (2002) 74° (1976) 0.07" NA
Nov 5 25° 55° 15° (2002) 75° (1949) 0.07" NA
Nov 6 24° 54° 11° (1959) 71° (1949) 0.07" NA
Nov 7 24° 53° 14° (1959) 72° (1991) 0.07" NA
Nov 8 24° 53° 15° (1959) 73° (1991) 0.08" NA
Nov 9 24° 52° 12° (1948) 74° (1956) 0.08" NA
Nov 10 24° 52° 14° (1992) 71° (1956) 0.08" NA
Nov 11 24° 51° 11° (1975) 71° (1990) 0.08" NA
Nov 12 23° 51° 6° (1978) 69° (1996) 0.08" NA
Nov 13 23° 50° 2° (1985) 70° (1990) 0.08" NA
Nov 14 23° 50° 5° (1985) 71° (1999) 0.08" NA
Nov 15 23° 49° 5° (1978) 73° (1995) 0.09" NA
Nov 16 23° 49° 11° (1960) 68° (1959) 0.09" NA
Nov 17 22° 49° 2° (1958) 66° (1967) 0.09" NA
Nov 18 22° 48° 2° (1964) 69° (1995) 0.09" NA
Nov 19 22° 48° 3° (1985) 66° (1949) 0.09" NA
Nov 20 22° 47° 3° (1985) 68° (1955) 0.09" NA
Nov 21 22° 47° 3° (1985) 66° (1995) 0.09" NA
Nov 22 22° 47° 4° (1985) 67° (1954) 0.09" NA
Nov 23 21° 46° 2° (1966) 65° (1949) 0.09" NA
Nov 24 21° 46° 2° (1966) 69° (1995) 0.09" NA
Nov 25 21° 46° 4° (1966) 69° (1949) 0.09" NA
Nov 26 21° 45° 4° (1965) 68° (1958) 0.09" NA
Nov 27 21° 45° 5° (1990) 65° (1949) 0.09" NA
Nov 28 20° 45° 4° (2004) 65° (1951) 0.1" NA
Nov 29 20° 45° 0° (1975) 67° (1958) 0.1" NA
Nov 30 20° 44° 5° (1954) 68° (1958) 0.1" NA
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