July weather in Plainfield, NJ
The average temperature in Plainfield in July is 77.1°F (66.0°F–88.1°F). Average precipitation: 5.34 inches.
July is a summer month in Plainfield, and is warmer than the annual average of 54.8°F. Daily temperatures swing about 22.1°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 38m. For travel, July is a wet month.
Avg High
88.1°F
Avg Low
66.0°F
Precipitation
5.34 in
Daylight
14h 38m
July records in Plainfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 102.0°F (1901) | 46.0°F (1899) | 1.18 in (1922) |
| July 2 | 104.0°F (1901) | 48.0°F (1982) | 2.28 in (1914) |
| July 3 | 102.0°F (1911) | 44.1°F (1929) | 2.31 in (1920) |
| July 4 | 104.0°F (1949) | 46.0°F (1929) | 1.65 in (1960) |
| July 5 | 104.0°F (1999) | 45.0°F (1909) | 4.54 in (1928) |
| July 6 | 102.9°F (1999) | 45.0°F (1927) | 2.45 in (1980) |
| July 7 | 100.0°F (2010) | 50.0°F (1898) | 2.80 in (1984) |
| July 8 | 99.0°F (1993) | 48.0°F (1909) | 3.40 in (1924) |
| July 9 | 104.0°F (1936) | 48.0°F (1909) | 1.90 in (1992) |
| July 10 | 106.0°F (1936) | 48.9°F (1909) | 2.88 in (1950) |
| July 11 | 100.9°F (1988) | 46.9°F (1898) | 1.75 in (1917) |
| July 12 | 100.0°F (1908) | 46.9°F (1926) | 2.88 in (2004) |
| July 13 | 100.0°F (1966) | 52.0°F (1978) | 2.27 in (1996) |
| July 14 | 100.9°F (1954) | 51.1°F (1925) | 2.86 in (1975) |
| July 15 | 102.0°F (1995) | 50.0°F (1924) | 3.46 in (1975) |
| July 16 | 102.9°F (1988) | 46.9°F (1929) | 1.81 in (1933) |
| July 17 | 100.9°F (1900) | 48.9°F (1929) | 1.50 in (1938) |
| July 18 | 102.0°F (1999) | 50.0°F (1925) | 2.50 in (1995) |
| July 19 | 100.0°F (1977) | 51.1°F (1924) | 2.35 in (1919) |
| July 20 | 102.0°F (1980) | 50.0°F (1924) | 2.69 in (1961) |
| July 21 | 102.0°F (1930) | 50.0°F (1929) | 2.15 in (2006) |
| July 22 | 104.0°F (2011) | 51.1°F (1944) | 2.30 in (1946) |
| July 23 | 100.9°F (1955) | 50.0°F (1939) | 5.95 in (1938) |
| July 24 | 98.1°F (1910) | 50.0°F (1925) | 3.11 in (1997) |
| July 25 | 99.0°F (1999) | 50.0°F (1893) | 3.11 in (1997) |
| July 26 | 100.0°F (1940) | 48.9°F (1976) | 2.00 in (1991) |
| July 27 | 100.0°F (1955) | 50.0°F (1920) | 3.75 in (1942) |
| July 28 | 104.0°F (1949) | 46.9°F (1903) | 4.52 in (1897) |
| July 29 | 102.9°F (1949) | 52.0°F (1893) | 4.48 in (1905) |
| July 30 | 102.0°F (1949) | 48.9°F (1925) | 2.88 in (1971) |
| July 31 | 104.0°F (1954) | 50.0°F (1928) | 1.98 in (1925) |