April weather in Riverside, WA
The average temperature in Riverside in April is 49.8°F (36.8°F–62.8°F). Average precipitation: 0.83 inches.
April is a spring month in Riverside, and is cooler than the annual average of 49.9°F. Daily temperatures swing about 26°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 13h 26m. For travel, April is cool.
Avg High
62.8°F
Avg Low
36.8°F
Precipitation
0.83 in
Daylight
13h 26m
April records in Riverside
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 75.9°F (2013) | 22.1°F (2008) | 0.42 in (2026) |
| April 2 | 77.0°F (2024) | 21.9°F (1999) | 0.35 in (2010) |
| April 3 | 73.0°F (2000) | 21.2°F (2008) | 0.21 in (2005) |
| April 4 | 70.0°F (2004) | 21.0°F (2001) | 0.12 in (2013) |
| April 5 | 70.0°F (2004) | 23.2°F (2023) | 0.29 in (2010) |
| April 6 | 73.9°F (2026) | 23.0°F (1999) | 0.24 in (2017) |
| April 7 | 73.9°F (2007) | 19.9°F (2000) | 0.75 in (2017) |
| April 8 | 80.1°F (2016) | 25.2°F (2008) | 0.18 in (2006) |
| April 9 | 75.0°F (2000) | 25.0°F (1999) | 0.04 in (2002) |
| April 10 | 75.0°F (2020) | 22.1°F (2007) | 0.34 in (2017) |
| April 11 | 73.9°F (2004) | 21.0°F (1999) | 0.39 in (2005) |
| April 12 | 75.9°F (2004) | 21.0°F (2001) | 0.58 in (2017) |
| April 13 | 75.0°F (2002) | 22.1°F (2020) | 0.39 in (2017) |
| April 14 | 78.1°F (2024) | 22.1°F (2013) | 0.36 in (2003) |
| April 15 | 77.0°F (2021) | 24.3°F (2015) | 0.34 in (2006) |
| April 16 | 75.9°F (2021) | 23.0°F (2026) | 0.37 in (2018) |
| April 17 | 80.1°F (2021) | 23.2°F (2013) | 0.05 in (2003) |
| April 18 | 84.0°F (2021) | 24.3°F (2006) | 0.24 in (2022) |
| April 19 | 81.0°F (2016) | 20.1°F (2011) | 0.01 in (1999) |
| April 20 | 84.9°F (2016) | 21.2°F (2007) | 0.53 in (2004) |
| April 21 | 82.9°F (2009) | 22.1°F (2008) | 0.59 in (2004) |
| April 22 | 81.0°F (2012) | 24.3°F (2008) | 0.60 in (2014) |
| April 23 | 84.9°F (2012) | 27.1°F (2009) | 0.13 in (1998) |
| April 24 | 78.1°F (1999) | 19.0°F (2002) | 0.83 in (2003) |
| April 25 | 81.0°F (2001) | 25.2°F (2010) | 0.25 in (2021) |
| April 26 | 82.9°F (2005) | 25.2°F (2008) | 0.59 in (2012) |
| April 27 | 84.0°F (2018) | 24.1°F (1999) | 0.24 in (2010) |
| April 28 | 80.1°F (2015) | 27.1°F (2011) | 0.18 in (2018) |
| April 29 | 84.0°F (2023) | 25.2°F (2011) | 0.13 in (2016) |
| April 30 | 84.9°F (2023) | 24.3°F (2013) | 0.18 in (2022) |