July weather in Union City, CA
The average temperature in Union City in July is 67.3°F (56.8°F–77.9°F). Average precipitation: 0.00 inches.
July is a summer month in Union City, and is warmer than the annual average of 59.5°F. Daily temperatures swing about 21.1°F between overnight low and afternoon high. Expect about 0 days with precipitation. Daylight averages about 14h 21m. For travel, July is one of the best months of the year to visit.
Avg High
77.9°F
Avg Low
56.8°F
Precipitation
0.00 in
Daylight
14h 21m
July records in Union City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 99.0°F (1996) | 51.1°F (2010) | 0.00 in (1996) |
| July 2 | 96.1°F (2024) | 53.1°F (1997) | 0.00 in (1996) |
| July 3 | 99.0°F (2001) | 51.1°F (2025) | 0.00 in (1996) |
| July 4 | 93.0°F (2024) | 50.0°F (1999) | 0.00 in (1996) |
| July 5 | 89.1°F (2011) | 50.0°F (2025) | 0.00 in (1996) |
| July 6 | 90.0°F (2011) | 52.0°F (1999) | 0.00 in (1996) |
| July 7 | 91.9°F (2008) | 48.9°F (1999) | 0.00 in (1996) |
| July 8 | 99.0°F (2008) | 51.1°F (2003) | 0.00 in (1996) |
| July 9 | 98.1°F (2002) | 52.0°F (2023) | 0.00 in (1996) |
| July 10 | 93.9°F (2002) | 52.0°F (2009) | 0.00 in (1996) |
| July 11 | 98.1°F (1999) | 50.0°F (2023) | 0.00 in (1996) |
| July 12 | 100.0°F (1999) | 54.0°F (2004) | 0.00 in (1996) |
| July 13 | 93.0°F (1999) | 53.1°F (2009) | 0.00 in (1996) |
| July 14 | 93.9°F (2009) | 53.1°F (2021) | 0.00 in (1996) |
| July 15 | 93.9°F (1998) | 52.0°F (1997) | 0.00 in (1996) |
| July 16 | 91.9°F (1998) | 53.1°F (2021) | 0.00 in (1996) |
| July 17 | 96.1°F (2006) | 48.0°F (2016) | 0.00 in (1996) |
| July 18 | 95.0°F (1998) | 53.1°F (2011) | 0.00 in (1996) |
| July 19 | 93.9°F (1998) | 48.9°F (2016) | 0.00 in (1996) |
| July 20 | 97.0°F (1996) | 53.1°F (2022) | 0.00 in (1996) |
| July 21 | 95.0°F (2006) | 53.1°F (2021) | 0.00 in (1996) |
| July 22 | 102.9°F (2006) | 52.0°F (2022) | 0.00 in (1996) |
| July 23 | 102.9°F (2006) | 51.1°F (2021) | 0.00 in (1996) |
| July 24 | 100.9°F (2006) | 52.0°F (2022) | 0.00 in (1996) |
| July 25 | 95.0°F (2006) | 53.1°F (2022) | 0.00 in (1996) |
| July 26 | 91.9°F (2016) | 54.0°F (2009) | 0.00 in (1996) |
| July 27 | 91.0°F (2016) | 54.0°F (2011) | 0.00 in (1996) |
| July 28 | 93.9°F (1996) | 53.1°F (2023) | 0.00 in (1996) |
| July 29 | 89.1°F (1996) | 53.1°F (2023) | 0.00 in (1996) |
| July 30 | 88.0°F (1996) | 51.1°F (2023) | 0.00 in (1996) |
| July 31 | 91.9°F (2000) | 53.1°F (1999) | 0.00 in (1996) |