Napa, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 39° 57° 19° (1937) 85° (1962) 5.35" 0"
February 42° 62° 23° (1917) 85° (1948) 5.03" 0"
March 43° 65° 23° (1949) 90° (1955) 4.09" 0"
April 45° 71° 27° (1929) 95° (2004) 1.45" 0"
May 49° 75° 30° (1974) 103° (2001) 0.78" 0"
June 53° 81° 34° (1929) 113° (1961) 0.16" 0"
July 55° 83° 38° (1929) 112° (1972) 0.05" 0"
August 55° 82° 37° (1932) 106° (1998) 0.11" 0"
September 53° 82° 36° (1932) 109° (1955) 0.41" 0"
October 49° 76° 28° (1946) 106° (1980) 1.43" 0"
November 43° 64° 25° (1932) 89° (1929) 3.72" 0"
December 39° 57° 14° (1990) 81° (1967) 3.88" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 43° 64° 27° (1955) 81° (1929) 0.17" NA
Mar 2 43° 64° 27° (1951) 78° (1931) 0.16" NA
Mar 3 43° 64° 27° (1966) 84° (1929) 0.16" NA
Mar 4 43° 64° 29° (1939) 80° (1959) 0.16" NA
Mar 5 43° 64° 26° (1918) 79° (1972) 0.16" NA
Mar 6 43° 64° 27° (1918) 79° (1953) 0.16" NA
Mar 7 43° 64° 29° (1917) 85° (1953) 0.16" NA
Mar 8 43° 64° 23° (1949) 90° (1955) 0.15" NA
Mar 9 43° 64° 29° (1935) 84° (2004) 0.15" NA
Mar 10 43° 64° 28° (1919) 86° (2004) 0.15" NA
Mar 11 43° 65° 30° (1917) 87° (2005) 0.15" NA
Mar 12 43° 65° 29° (1919) 86° (2005) 0.14" NA
Mar 13 43° 65° 29° (1969) 83° (1926) 0.14" NA
Mar 14 43° 65° 29° (1917) 83° (2004) 0.14" NA
Mar 15 43° 65° 29° (1917) 86° (2004) 0.14" NA
Mar 16 43° 65° 28° (1963) 88° (2004) 0.14" NA
Mar 17 43° 65° 25° (1963) 87° (2004) 0.13" NA
Mar 18 43° 65° 32° (1920) 85° (1944) 0.13" NA
Mar 19 43° 66° 31° (1935) 83° (1960) 0.13" NA
Mar 20 43° 66° 29° (1952) 86° (2004) 0.12" NA
Mar 21 43° 66° 30° (1924) 85° (2004) 0.12" NA
Mar 22 43° 66° 31° (1933) 87° (1927) 0.12" NA
Mar 23 43° 66° 30° (1917) 84° (1931) 0.11" NA
Mar 24 43° 66° 28° (1949) 86° (1926) 0.11" NA
Mar 25 43° 67° 26° (1949) 85° (1970) 0.11" NA
Mar 26 43° 67° 30° (1920) 86° (1952) 0.11" NA
Mar 27 43° 67° 32° (1936) 86° (1930) 0.1" NA
Mar 28 43° 67° 34° (1933) 83° (1969) 0.1" NA
Mar 29 44° 67° 31° (1938) 83° (1968) 0.09" NA
Mar 30 44° 68° 30° (1938) 82° (2001) 0.09" NA
Mar 31 44° 68° 29° (1917) 86° (1966) 0.09" NA
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