San Luis Obispo, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° -9.4° (1963) 31.1° (1976) 5.28" 0"
February 19° -2.2° (1990) 31.7° (1995) 5.41" 0"
March 19° -2.2° (1962) 32.8° (2004) 4.48" 0"
April 22° -1.7° (1975) 40° (1989) 1.31" 0"
May 23° 1.1° (1990) 38.9° (2000) 0.47" 0"
June 11° 26° 2.8° (1991) 41.1° (1976) 0.09" 0"
July 12° 27° 5° (1971) 41.1° (1973) 0.03" 0"
August 12° 28° 4.4° (1970) 40.6° (1962) 0.08" 0"
September 12° 28° 4.4° (1948) 44.4° (1971) 0.44" 0"
October 10° 26° -1.1° (1971) 42.8° (1980) 0.99" 0"
November 22° -5° (2004) 36.7° (1997) 2.17" 0"
December 19° -11.1° (1987) 33.3° (1958) 3.61" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 6.1° 20.6° 0° (2004) 28° (1995) 0.09" NA
Dec 2 6.1° 20° 1° (1978) 29° (1959) 0.09" NA
Dec 3 6.1° 20° 1° (1991) 30° (1959) 0.1" NA
Dec 4 6.1° 20° 1° (1948) 33° (1958) 0.1" NA
Dec 5 6.1° 20° 0° (1948) 28° (1958) 0.1" NA
Dec 6 5.6° 20° 2° (1972) 29° (1962) 0.1" NA
Dec 7 5.6° 20° -2° (1978) 27° (1962) 0.1" NA
Dec 8 5.6° 19.4° -1° (1960) 28° (1989) 0.1" NA
Dec 9 5.6° 19.4° -1° (1978) 30° (1975) 0.1" NA
Dec 10 5.6° 19.4° -1° (1972) 29° (1957) 0.11" NA
Dec 11 5.6° 19.4° -4° (1972) 27° (1957) 0.11" NA
Dec 12 5.6° 19.4° -3° (1972) 28° (1958) 0.11" NA
Dec 13 5.6° 19.4° -11° (1987) 27° (1988) 0.11" NA
Dec 14 5.6° 18.9° -2° (1967) 28° (1953) 0.11" NA
Dec 15 18.9° -1° (1987) 28° (1953) 0.11" NA
Dec 16 18.9° -2° (1967) 27° (1980) 0.12" NA
Dec 17 18.9° -2° (1971) 29° (1980) 0.12" NA
Dec 18 18.9° -4° (1971) 28° (1998) 0.12" NA
Dec 19 18.9° -4° (1971) 28° (2000) 0.12" NA
Dec 20 18.9° -4° (1971) 28° (2000) 0.12" NA
Dec 21 18.9° -1° (1967) 27° (1999) 0.12" NA
Dec 22 18.9° -3° (1968) 26° (2000) 0.13" NA
Dec 23 18.3° -8° (1990) 25° (1960) 0.13" NA
Dec 24 18.3° -7° (1998) 27° (1999) 0.13" NA
Dec 25 18.3° -3° (1948) 27° (1985) 0.13" NA
Dec 26 18.3° -3° (1987) 27° (1980) 0.13" NA
Dec 27 18.3° -2° (1987) 28° (1980) 0.14" NA
Dec 28 18.3° -1° (1962) 27° (1956) 0.14" NA
Dec 29 18.3° -2° (1962) 29° (1956) 0.14" NA
Dec 30 18.3° -1° (1988) 27° (1956) 0.14" NA
Dec 31 18.3° -1° (1987) 29° (1980) 0.14" NA
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