Portola, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 42° -22° (1971) 66° (1961) 4.06" 10.1"
February 21° 45° -21° (1949) 72° (1986) 4.03" 11.8"
March 25° 51° -12° (1952) 80° (1966) 3.36" 5.6"
April 29° 57° 4° (1975) 85° (1981) 1.37" 2.7"
May 35° 67° 13° (1950) 94° (2003) 0.96" 0.3"
June 40° 76° 20° (2002) 111° (2006) 0.52" 0.1"
July 44° 85° 22° (1976) 103° (2002) 0.28" 0"
August 42° 84° 23° (1960) 107° (1981) 0.28" 0"
September 37° 77° 14° (1950) 100° (1955) 0.6" 0"
October 30° 66° 9° (1971) 92° (1980) 1.27" 0.3"
November 24° 51° 0° (1975) 76° (1949) 2.59" 4.3"
December 19° 42° -28° (1972) 70° (1958) 4.09" 7.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 23° 48° -3° (1955) 69° (1986) 0.15" 0.2"
Mar 2 23° 48° -3° (1966) 64° (1968) 0.15" 0.3"
Mar 3 23° 48° -4° (1951) 63° (1950) 0.14" 0.2"
Mar 4 24° 48° 1° (1976) 71° (1950) 0.14" 0.2"
Mar 5 24° 49° 0° (1952) 69° (1972) 0.14" 0.2"
Mar 6 24° 49° -6° (1956) 62° (1979) 0.13" 0.3"
Mar 7 24° 49° 2° (1956) 68° (1979) 0.13" 0.2"
Mar 8 24° 49° 4° (1985) 70° (1972) 0.12" 0.2"
Mar 9 25° 50° 5° (1962) 70° (1972) 0.13" 0.2"
Mar 10 25° 50° 0° (1969) 69° (2005) 0.12" 0.2"
Mar 11 25° 50° 7° (2006) 69° (2007) 0.13" 0.1"
Mar 12 25° 50° 7° (1950) 72° (2005) 0.13" 0.2"
Mar 13 25° 50° 1° (1952) 68° (2005) 0.12" 0.1"
Mar 14 25° 51° 6° (1962) 70° (2004) 0.12" 0.2"
Mar 15 25° 51° 6° (1958) 74° (1994) 0.11" 0.1"
Mar 16 26° 51° 9° (1969) 74° (2007) 0.12" 0.2"
Mar 17 26° 51° 10° (1966) 71° (2007) 0.11" 0.1"
Mar 18 26° 51° 7° (1963) 72° (2004) 0.1" 0.2"
Mar 19 26° 52° 13° (1987) 72° (1972) 0.1" 0.1"
Mar 20 26° 52° -12° (1952) 71° (1960) 0.1" 0.2"
Mar 21 26° 52° -8° (1952) 77° (2004) 0.09" 0.1"
Mar 22 26° 52° -3° (1952) 73° (2004) 0.09" 0.2"
Mar 23 26° 52° -1° (1952) 73° (1960) 0.09" 0.2"
Mar 24 27° 52° 12° (1963) 74° (1960) 0.09" 0.2"
Mar 25 27° 53° 10° (1995) 72° (1960) 0.08" 0.1"
Mar 26 27° 53° 10° (1995) 71° (1988) 0.08" 0.2"
Mar 27 27° 53° 12° (1995) 72° (1966) 0.08" 0.2"
Mar 28 27° 53° 12° (1976) 75° (1966) 0.07" 0.2"
Mar 29 27° 53° 11° (1985) 75° (1966) 0.06" 0.2"
Mar 30 27° 53° 9° (1955) 78° (1966) 0.07" 0.1"
Mar 31 27° 54° 13° (1999) 80° (1966) 0.07" 0.2"
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