Portola, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -8° -30° (1971) 18.9° (1961) 4.17" 16.1"
February -6° -29.4° (1949) 22.2° (1986) 3.87" 12.8"
March -3° -24.4° (1952) 26.7° (1966) 3.61" 10.2"
April -2° 14° -15.6° (1975) 29.4° (1981) 1.23" 4"
May 19° -10.6° (1950) 34.4° (2003) 1.12" 1.1"
June 24° -6.7° (2002) 43.9° (2006) 0.54" 0"
July 29° -5.6° (1976) 39.4° (2002) 0.34" 0"
August 29° -5° (1960) 41.7° (1981) 0.43" 0"
September 24° -10° (1950) 37.8° (1955) 0.78" 0.1"
October -2° 18° -12.8° (1971) 33.3° (1980) 1.22" 0.2"
November -5° 10° -17.8° (1975) 24.4° (1949) 2.5" 5.6"
December -8° -33.3° (1972) 21.1° (1958) 3.28" 18.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 -7.2° 5.6° -23° (1950) 18° (2003) 0.14" NA
Feb 2 -7.2° 5.6° -24° (1950) 16° (1953) 0.14" NA
Feb 3 -7.2° 6.1° -19° (1950) 17° (1963) 0.14" NA
Feb 4 -7.2° 6.1° -22° (1957) 16° (1963) 0.14" NA
Feb 5 -7.2° 6.1° -28° (1989) 18° (1995) 0.14" NA
Feb 6 -6.7° 6.1° -21° (1989) 17° (1951) 0.14" NA
Feb 7 -6.7° 6.1° -22° (1989) 21° (1963) 0.14" NA
Feb 8 -6.7° 6.1° -23° (1949) 19° (1963) 0.14" NA
Feb 9 -6.7° 6.7° -17° (1956) 19° (1951) 0.14" NA
Feb 10 -6.7° 6.7° -16° (1985) 18° (1951) 0.14" NA
Feb 11 -6.7° 6.7° -17° (1966) 20° (1991) 0.14" NA
Feb 12 -6.7° 6.7° -29° (1949) 16° (1988) 0.14" NA
Feb 13 -6.1° 6.7° -28° (1949) 17° (1977) 0.14" NA
Feb 14 -6.1° 6.7° -24° (1949) 16° (1996) 0.14" NA
Feb 15 -6.1° 7.2° -17° (1989) 18° (1991) 0.14" NA
Feb 16 -6.1° 7.2° -19° (1956) 19° (1977) 0.14" NA
Feb 17 -6.1° 7.2° -16° (1969) 16.1° (2007) 0.14" NA
Feb 18 -6.1° 7.2° -21° (1956) 18° (1950) 0.14" NA
Feb 19 -5.6° 7.2° -24° (1990) 19° (1977) 0.14" NA
Feb 20 -5.6° 7.2° -22° (1990) 18° (1982) 0.14" NA
Feb 21 -5.6° 7.8° -20° (1969) 20° (1995) 0.14" NA
Feb 22 -5.6° 7.8° -18° (1969) 18° (1995) 0.14" NA
Feb 23 -5.6° 7.8° -14° (1974) 18° (1995) 0.14" NA
Feb 24 -5.6° 7.8° -13° (1951) 19° (1995) 0.13" NA
Feb 25 -5° 7.8° -22° (1962) 20° (1986) 0.13" NA
Feb 26 -5° 7.8° -25° (1962) 20° (1986) 0.13" NA
Feb 27 -5° 8.3° -29° (1962) 21° (1986) 0.13" NA
Feb 28 -5° 8.3° -25° (1955) 22° (1986) 0.13" NA
Feb 29 -5° 8.3° -8° (2004) 18° (1968) 0.13" NA
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