May weather in Ross, CA
The average temperature in Ross in May is 61.5°F (49.5°F–73.5°F). Average precipitation: 1.40 inches.
May is a spring month in Ross, and is warmer than the annual average of 59.3°F. Daily temperatures swing about 24°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 14h 3m. For travel, May is a comfortable month to visit.
Avg High
73.5°F
Avg Low
49.5°F
Precipitation
1.40 in
Daylight
14h 3m
May records in Ross
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 93.0°F (1996) | 34.0°F (1993) | 1.86 in (1995) |
| May 2 | 93.0°F (1947) | 34.0°F (1915) | 1.29 in (2009) |
| May 3 | 91.0°F (2013) | 36.0°F (1921) | 1.89 in (2003) |
| May 4 | 93.9°F (1990) | 35.1°F (1921) | 1.43 in (2024) |
| May 5 | 98.1°F (1987) | 33.1°F (1952) | 1.53 in (1979) |
| May 6 | 97.0°F (1987) | 37.0°F (1914) | 0.41 in (1994) |
| May 7 | 99.0°F (1987) | 36.0°F (1916) | 2.09 in (1933) |
| May 8 | 93.9°F (2001) | 36.0°F (1925) | 1.32 in (2005) |
| May 9 | 91.9°F (2020) | 34.0°F (1956) | 3.03 in (1915) |
| May 10 | 93.9°F (1934) | 35.1°F (1920) | 1.95 in (1915) |
| May 11 | 95.0°F (1934) | 35.1°F (1920) | 1.64 in (1915) |
| May 12 | 98.1°F (1976) | 34.0°F (1956) | 2.37 in (1925) |
| May 13 | 96.1°F (1976) | 36.0°F (1943) | 0.70 in (1945) |
| May 14 | 93.9°F (1987) | 37.0°F (1920) | 1.04 in (1906) |
| May 15 | 98.1°F (2008) | 37.0°F (1964) | 0.86 in (1996) |
| May 16 | 97.0°F (1997) | 37.9°F (1909) | 1.57 in (2019) |
| May 17 | 100.9°F (1997) | 37.9°F (1920) | 1.73 in (1915) |
| May 18 | 96.1°F (1997) | 37.0°F (1933) | 3.00 in (1957) |
| May 19 | 96.1°F (1931) | 37.9°F (1939) | 2.03 in (2019) |
| May 20 | 93.9°F (1935) | 39.0°F (1918) | 2.28 in (1990) |
| May 21 | 99.0°F (2000) | 39.0°F (1902) | 1.08 in (1957) |
| May 22 | 95.0°F (1943) | 36.0°F (1909) | 0.63 in (1912) |
| May 23 | 96.1°F (1943) | 23.0°F (1999) | 0.45 in (1914) |
| May 24 | 97.0°F (2022) | 36.0°F (1923) | 0.98 in (1931) |
| May 25 | 97.0°F (2022) | 37.0°F (1916) | 4.16 in (1906) |
| May 26 | 99.0°F (1951) | 36.0°F (1917) | 0.92 in (1946) |
| May 27 | 99.0°F (1919) | 39.0°F (1923) | 3.15 in (1990) |
| May 28 | 98.1°F (1924) | 37.0°F (1929) | 1.75 in (1932) |
| May 29 | 98.1°F (1975) | 36.0°F (1929) | 0.47 in (1998) |
| May 30 | 100.9°F (1950) | 36.0°F (1919) | 2.22 in (1940) |
| May 31 | 102.0°F (2001) | 36.0°F (1919) | 0.83 in (1947) |