May weather in Porterville, CA
The average temperature in Porterville in May is 70.2°F (56.3°F–84.1°F). Average precipitation: 0.34 inches.
May is a spring month in Porterville, and is warmer than the annual average of 65.7°F. Daily temperatures swing about 27.8°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 13h 55m. For travel, May is a comfortable month to visit.
Avg High
84.1°F
Avg Low
56.3°F
Precipitation
0.34 in
Daylight
13h 55m
May records in Porterville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 100.0°F (1947) | 37.9°F (1913) | 0.58 in (1914) |
| May 2 | 100.0°F (1947) | 33.1°F (1920) | 0.78 in (1908) |
| May 3 | 100.0°F (1966) | 37.0°F (1933) | 0.39 in (1932) |
| May 4 | 105.1°F (1966) | 37.9°F (1921) | 1.39 in (2003) |
| May 5 | 102.0°F (2004) | 37.0°F (1975) | 0.31 in (1905) |
| May 6 | 100.0°F (1990) | 35.1°F (1933) | 0.57 in (1964) |
| May 7 | 102.0°F (1987) | 30.9°F (2003) | 0.28 in (1961) |
| May 8 | 99.0°F (1987) | 36.0°F (1933) | 0.45 in (1955) |
| May 9 | 102.0°F (1987) | 37.0°F (1922) | 0.73 in (1905) |
| May 10 | 102.0°F (2001) | 39.0°F (1918) | 0.23 in (1989) |
| May 11 | 100.0°F (1934) | 39.9°F (1905) | 0.23 in (1957) |
| May 12 | 102.0°F (2001) | 41.0°F (1912) | 1.32 in (1906) |
| May 13 | 102.9°F (1927) | 39.0°F (1942) | 0.53 in (1998) |
| May 14 | 105.1°F (1976) | 41.0°F (1955) | 0.58 in (1995) |
| May 15 | 105.1°F (1927) | 39.0°F (1943) | 0.35 in (1953) |
| May 16 | 102.0°F (1924) | 37.9°F (1917) | 0.83 in (1944) |
| May 17 | 104.0°F (1970) | 37.9°F (1943) | 0.05 in (1949) |
| May 18 | 102.0°F (1970) | 41.0°F (1933) | 0.40 in (1928) |
| May 19 | 102.9°F (1973) | 41.0°F (1933) | 0.93 in (1957) |
| May 20 | 100.9°F (1954) | 39.9°F (1933) | 1.59 in (1981) |
| May 21 | 100.0°F (1966) | 39.0°F (1927) | 0.72 in (1957) |
| May 22 | 102.9°F (2000) | 37.9°F (1903) | 0.07 in (1946) |
| May 23 | 105.1°F (1904) | 39.9°F (1907) | 0.06 in (1958) |
| May 24 | 105.1°F (1928) | 39.0°F (1953) | 0.24 in (1990) |
| May 25 | 105.1°F (1928) | 43.0°F (1978) | 0.70 in (1931) |
| May 26 | 102.0°F (1951) | 39.0°F (1917) | 0.16 in (1934) |
| May 27 | 108.0°F (1951) | 39.0°F (1918) | 1.83 in (1971) |
| May 28 | 105.1°F (1974) | 41.0°F (1923) | 1.10 in (1906) |
| May 29 | 107.1°F (1933) | 39.9°F (1927) | 1.00 in (1919) |
| May 30 | 109.0°F (1984) | 41.0°F (1927) | 0.54 in (1945) |
| May 31 | 109.0°F (1910) | 39.9°F (1927) | 0.26 in (1948) |