May weather in Merced, CA
The average temperature in Merced in May is 66.8°F (51.7°F–81.9°F). Average precipitation: 0.59 inches.
May is a spring month in Merced, and is warmer than the annual average of 61.6°F. Daily temperatures swing about 30.2°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 14h 0m. For travel, May is a comfortable month to visit.
Avg High
81.9°F
Avg Low
51.7°F
Precipitation
0.59 in
Daylight
14h 0m
May records in Merced
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 100.0°F (1947) | 34.0°F (1967) | 0.47 in (1942) |
| May 2 | 98.1°F (1947) | 37.9°F (1915) | 0.50 in (2009) |
| May 3 | 98.1°F (2004) | 35.1°F (1938) | 0.41 in (2003) |
| May 4 | 98.1°F (1990) | 37.9°F (1964) | 0.45 in (1930) |
| May 5 | 96.1°F (1990) | 37.0°F (2003) | 0.67 in (2023) |
| May 6 | 98.1°F (1928) | 36.0°F (1977) | 0.40 in (1994) |
| May 7 | 97.0°F (2001) | 37.9°F (1986) | 0.85 in (1905) |
| May 8 | 100.0°F (2001) | 37.9°F (1930) | 0.47 in (1933) |
| May 9 | 97.0°F (2001) | 39.9°F (1908) | 0.64 in (1922) |
| May 10 | 100.0°F (1993) | 37.9°F (1922) | 0.48 in (1967) |
| May 11 | 100.0°F (2001) | 32.0°F (1900) | 0.33 in (1942) |
| May 12 | 100.9°F (1934) | 36.0°F (1900) | 0.62 in (1998) |
| May 13 | 105.1°F (1976) | 35.1°F (1995) | 0.80 in (1925) |
| May 14 | 102.9°F (1972) | 39.9°F (1908) | 0.41 in (2011) |
| May 15 | 100.0°F (1972) | 35.1°F (1978) | 0.82 in (1995) |
| May 16 | 102.0°F (1924) | 30.0°F (1978) | 0.55 in (1996) |
| May 17 | 102.9°F (2008) | 39.9°F (1974) | 0.54 in (1915) |
| May 18 | 105.1°F (2009) | 36.0°F (1962) | 0.52 in (1944) |
| May 19 | 104.0°F (2009) | 39.9°F (1906) | 0.97 in (2019) |
| May 20 | 100.0°F (1947) | 35.1°F (2002) | 0.34 in (1925) |
| May 21 | 100.9°F (1988) | 37.0°F (1903) | 1.29 in (1921) |
| May 22 | 100.9°F (1904) | 39.0°F (1996) | 0.32 in (1958) |
| May 23 | 102.9°F (1904) | 39.9°F (1900) | 1.10 in (2002) |
| May 24 | 102.0°F (1936) | 35.1°F (1978) | 0.12 in (1980) |
| May 25 | 109.0°F (1928) | 39.9°F (1916) | 0.52 in (1931) |
| May 26 | 102.9°F (1951) | 39.9°F (1905) | 0.80 in (1906) |
| May 27 | 104.0°F (2020) | 39.9°F (1904) | 0.31 in (1971) |
| May 28 | 104.0°F (1984) | 39.9°F (1900) | 1.13 in (1990) |
| May 29 | 102.9°F (1984) | 39.9°F (1921) | 0.58 in (1934) |
| May 30 | 104.0°F (1984) | 41.0°F (1904) | 0.52 in (1945) |
| May 31 | 106.0°F (2001) | 34.0°F (1967) | 1.05 in (1948) |