Saint Helena, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 38° 58° 16° (1937) 83° (1962) 7.46" 0.2"
February 40° 63° 22° (1950) 84° (1971) 7.1" 0"
March 42° 66° 24° (1971) 90° (1966) 5.31" 0.2"
April 44° 73° 27° (1953) 98° (1981) 1.74" 0"
May 48° 79° 30° (1979) 105° (1950) 0.68" 0"
June 52° 86° 36° (1952) 110° (1976) 0.17" 0"
July 54° 89° 39° (1955) 115° (1972) 0.04" 0"
August 54° 88° 32° (1978) 111° (1993) 0.08" 0"
September 52° 86° 35° (1934) 113° (1955) 0.41" 0"
October 47° 78° 23° (1946) 104° (1933) 1.84" 0"
November 42° 65° 23° (1961) 92° (1966) 4.83" 0"
December 37° 58° 11° (1932) 83° (1967) 5.22" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 50° 83° 38° (1941) 104° (1960) 0.01" NA
Jun 2 51° 83° 38° (1933) 107° (1960) 0.01" NA
Jun 3 51° 83° 37° (1976) 103° (1960) 0.01" NA
Jun 4 51° 83° 40° (1962) 101° (1935) 0.01" NA
Jun 5 51° 83° 39° (1988) 102° (1977) 0.01" NA
Jun 6 51° 84° 38° (1939) 102° (1978) 0.01" NA
Jun 7 51° 84° 37° (1950) 104° (1973) 0.01" NA
Jun 8 51° 84° 38° (1950) 105° (1973) 0.01" NA
Jun 9 51° 84° 41° (1946) 99° (1975) 0.01" NA
Jun 10 52° 85° 39° (1972) 102° (1994) 0.01" NA
Jun 11 52° 85° 41° (1946) 103° (1994) 0.01" NA
Jun 12 52° 85° 36° (1952) 99° (1945) 0.01" NA
Jun 13 52° 85° 42° (1952) 105° (1966) 0.01" NA
Jun 14 52° 85° 42° (1944) 107° (2000) 0.01" NA
Jun 15 52° 85° 40° (1946) 107° (2000) 0.01" NA
Jun 16 52° 86° 39° (1944) 104° (1943) 0.01" NA
Jun 17 52° 86° 41° (1939) 103° (1945) 0.01" NA
Jun 18 53° 86° 40° (1933) 104° (1945) 0" NA
Jun 19 53° 86° 38° (1933) 103° (1946) 0" NA
Jun 20 53° 86° 42° (1933) 107° (1954) 0" NA
Jun 21 53° 87° 43° (1941) 107° (1961) 0" NA
Jun 22 53° 87° 42° (1943) 105° (1989) 0" NA
Jun 23 53° 87° 42° (1935) 105° (1959) 0" NA
Jun 24 53° 87° 40° (1934) 105° (1976) 0" NA
Jun 25 53° 87° 40° (1943) 105° (1995) 0" NA
Jun 26 53° 87° 40° (1943) 107° (1973) 0" NA
Jun 27 53° 88° 45° (1936) 110° (1976) 0" NA
Jun 28 53° 88° 41° (1949) 106° (1956) 0" NA
Jun 29 53° 88° 42° (1949) 109° (1950) 0" NA
Jun 30 53° 88° 42° (1933) 108° (1972) 0" NA
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