April weather in Fontana, CA
The average temperature in Fontana in April is 63.4°F (51.1°F–75.7°F). Average precipitation: 0.76 inches.
April is a spring month in Fontana, and is cooler than the annual average of 66.8°F. Daily temperatures swing about 24.6°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 52m. For travel, April is one of the best months of the year to visit.
Avg High
75.7°F
Avg Low
51.1°F
Precipitation
0.76 in
Daylight
12h 52m
April records in Fontana
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 91.0°F (2011) | 39.0°F (1999) | 0.33 in (1999) |
| April 2 | 84.9°F (2016) | 34.0°F (1999) | 0.15 in (2014) |
| April 3 | 87.1°F (2016) | 39.9°F (1999) | 0.08 in (2004) |
| April 4 | 89.1°F (2026) | 34.0°F (1999) | 1.22 in (2006) |
| April 5 | 93.0°F (2016) | 37.9°F (1999) | 0.60 in (2006) |
| April 6 | 98.1°F (2016) | 39.9°F (2023) | 1.66 in (2020) |
| April 7 | 96.1°F (2022) | 42.1°F (1999) | 0.63 in (2001) |
| April 8 | 98.1°F (2022) | 37.0°F (2001) | 0.15 in (2020) |
| April 9 | 96.1°F (2018) | 35.1°F (1999) | 0.66 in (2020) |
| April 10 | 93.9°F (2018) | 33.1°F (1999) | 0.40 in (2020) |
| April 11 | 90.0°F (2008) | 42.1°F (1999) | 0.60 in (1999) |
| April 12 | 93.0°F (2008) | 44.1°F (2009) | 0.70 in (2010) |
| April 13 | 96.1°F (2008) | 43.0°F (2022) | 0.59 in (2012) |
| April 14 | 89.1°F (1999) | 39.9°F (2012) | 1.18 in (2003) |
| April 15 | 88.0°F (1999) | 39.9°F (2012) | 0.04 in (2003) |
| April 16 | 91.9°F (2011) | 43.0°F (2009) | 0.00 in (1999) |
| April 17 | 91.9°F (1999) | 43.0°F (2013) | 0.62 in (2000) |
| April 18 | 93.0°F (2019) | 43.0°F (2002) | 0.66 in (2000) |
| April 19 | 96.1°F (2009) | 43.0°F (2003) | 0.00 in (1999) |
| April 20 | 100.0°F (2009) | 39.9°F (2002) | 0.83 in (2007) |
| April 21 | 100.0°F (2009) | 42.1°F (2010) | 0.24 in (2001) |
| April 22 | 95.0°F (2017) | 42.1°F (2001) | 0.22 in (2022) |
| April 23 | 91.9°F (2019) | 42.1°F (2010) | 0.08 in (1999) |
| April 24 | 97.0°F (2020) | 46.9°F (2006) | 0.21 in (2002) |
| April 25 | 96.1°F (2004) | 48.9°F (1999) | 0.45 in (2014) |
| April 26 | 100.9°F (2004) | 46.0°F (2009) | 0.25 in (2025) |
| April 27 | 100.0°F (2004) | 46.0°F (2003) | 0.02 in (1999) |
| April 28 | 97.0°F (2008) | 45.0°F (1999) | 0.72 in (2005) |
| April 29 | 97.0°F (2021) | 42.1°F (1999) | 0.05 in (2019) |
| April 30 | 98.1°F (2021) | 45.0°F (2010) | 0.07 in (1999) |