July weather in Napa, CA

The average temperature in Napa in July is 69.4°F (55.5°F–83.3°F). Average precipitation: 0.00 inches.

July is a summer month in Napa, and is warmer than the annual average of 60.3°F. Daily temperatures swing about 27.8°F between overnight low and afternoon high. Expect about 0 days with precipitation. Daylight averages about 14h 25m. For travel, July is a comfortable month to visit.

Avg High
83.3°F
Avg Low
55.5°F
Precipitation
0.00 in
Daylight
14h 25m

July records in Napa

Date Record High Record Low Record Precip
July 1 102.9°F (1972) 43.0°F (1975) 0.00 in (1893)
July 2 105.1°F (1929) 44.1°F (1901) 0.13 in (1980)
July 3 104.0°F (1903) 39.0°F (1901) 0.00 in (1893)
July 4 107.1°F (1905) 44.1°F (1901) 0.03 in (1895)
July 5 106.0°F (1931) 44.1°F (1955) 0.00 in (1893)
July 6 106.0°F (1921) 44.1°F (1903) 0.04 in (1984)
July 7 109.9°F (1905) 42.1°F (1935) 0.00 in (1893)
July 8 102.9°F (2008) 39.9°F (1921) 0.81 in (1974)
July 9 106.0°F (1961) 43.0°F (1921) 0.24 in (1974)
July 10 108.0°F (1961) 43.0°F (1918) 0.00 in (1893)
July 11 106.0°F (1913) 43.0°F (1920) 0.00 in (1893)
July 12 100.9°F (1983) 44.1°F (1929) 0.00 in (1893)
July 13 104.0°F (1972) 37.9°F (1929) 0.00 in (1893)
July 14 111.9°F (1972) 45.0°F (1946) 0.00 in (1893)
July 15 109.0°F (1972) 44.1°F (1920) 0.14 in (1975)
July 16 102.9°F (1995) 43.0°F (1920) 0.00 in (1893)
July 17 106.0°F (1988) 42.1°F (1920) 0.00 in (1893)
July 18 102.9°F (1988) 39.9°F (1927) 0.00 in (1893)
July 19 100.9°F (1961) 45.0°F (1944) 0.00 in (1893)
July 20 107.1°F (1917) 46.0°F (1918) 0.00 in (1893)
July 21 107.1°F (1917) 44.1°F (1929) 0.00 in (1893)
July 22 107.1°F (2006) 45.0°F (1898) 0.20 in (1937)
July 23 108.0°F (2006) 41.0°F (1932) 0.00 in (1893)
July 24 102.0°F (2005) 46.9°F (1903) 0.00 in (1893)
July 25 100.9°F (1975) 45.0°F (1921) 0.04 in (1965)
July 26 106.0°F (1898) 45.0°F (1924) 0.00 in (1893)
July 27 99.0°F (1943) 44.1°F (1917) 0.00 in (1893)
July 28 107.1°F (1954) 41.0°F (1918) 0.10 in (1964)
July 29 105.1°F (1954) 41.0°F (1932) 0.00 in (1893)
July 30 102.9°F (1977) 43.0°F (1961) 0.04 in (1966)
July 31 102.0°F (1993) 41.0°F (1924) 0.00 in (1893)

Other months in Napa