June weather in Rancho Cucamonga, CA
The average temperature in Rancho Cucamonga in June is 73.2°F (60.0°F–86.4°F). Average precipitation: 0.02 inches.
June is a summer month in Rancho Cucamonga, and is warmer than the annual average of 66.8°F. Daily temperatures swing about 26.4°F between overnight low and afternoon high. Expect about 0 days with precipitation. Daylight averages about 14h 14m. For travel, June is a comfortable month to visit.
Avg High
86.4°F
Avg Low
60.0°F
Precipitation
0.02 in
Daylight
14h 14m
June records in Rancho Cucamonga
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| June 1 | 100.0°F (2013) | 51.1°F (2011) | 0.01 in (1999) |
| June 2 | 96.1°F (2016) | 50.0°F (2011) | 0.24 in (1999) |
| June 3 | 102.0°F (2016) | 50.0°F (1999) | 0.10 in (2025) |
| June 4 | 99.0°F (2006) | 48.9°F (1999) | 0.00 in (1998) |
| June 5 | 100.9°F (2002) | 46.0°F (1999) | 0.00 in (1998) |
| June 6 | 95.0°F (2002) | 52.0°F (1999) | 0.03 in (2020) |
| June 7 | 95.0°F (2015) | 50.0°F (1998) | 0.00 in (1998) |
| June 8 | 105.1°F (2015) | 52.0°F (1999) | 0.00 in (1998) |
| June 9 | 105.1°F (2019) | 48.9°F (2000) | 0.00 in (1998) |
| June 10 | 107.1°F (2019) | 54.0°F (1998) | 0.00 in (1998) |
| June 11 | 109.0°F (2019) | 53.1°F (1999) | 0.00 in (1998) |
| June 12 | 97.0°F (2019) | 54.0°F (1999) | 0.01 in (1998) |
| June 13 | 98.1°F (2007) | 51.1°F (1998) | 0.00 in (1998) |
| June 14 | 100.9°F (2021) | 52.0°F (1998) | 0.00 in (1998) |
| June 15 | 105.1°F (2021) | 55.9°F (2009) | 0.00 in (1998) |
| June 16 | 100.9°F (2006) | 54.0°F (2016) | 0.00 in (1998) |
| June 17 | 100.9°F (2021) | 55.0°F (2010) | 0.00 in (1998) |
| June 18 | 102.9°F (2008) | 55.9°F (1998) | 0.00 in (1998) |
| June 19 | 111.0°F (2016) | 54.0°F (2005) | 0.00 in (1998) |
| June 20 | 111.9°F (2016) | 55.0°F (2005) | 0.00 in (1998) |
| June 21 | 106.0°F (2008) | 54.0°F (1998) | 0.00 in (1998) |
| June 22 | 102.9°F (2008) | 55.0°F (1998) | 0.00 in (1998) |
| June 23 | 100.0°F (2024) | 54.0°F (2023) | 0.00 in (1998) |
| June 24 | 99.0°F (2006) | 55.0°F (2023) | 0.00 in (1998) |
| June 25 | 108.0°F (2017) | 55.0°F (2005) | 0.00 in (1998) |
| June 26 | 105.1°F (2017) | 54.0°F (2005) | 0.00 in (1998) |
| June 27 | 102.9°F (2022) | 55.0°F (2005) | 0.00 in (1998) |
| June 28 | 102.9°F (2015) | 55.9°F (2005) | 0.00 in (1998) |
| June 29 | 105.1°F (2013) | 57.0°F (2023) | 0.00 in (1998) |
| June 30 | 104.0°F (2013) | 55.9°F (2002) | 0.01 in (2015) |