Average temperature in April is 10.4 °C
Average daytime temperature is 19.7 °C
Average night temperature is 2.1 °C
Absolute maximum temperature: 25.8 °C
Absolute minimum temperature: -4.9 °C
Number of sunny days: 24
Number of rainy days: 6
Number of snow days:
Precipitation sum: 13 mm
* Weather data for Riverside United States is based on climate observations for 2023 year
| April (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 16.3 | 18.3 | 20.9 | 19.2 | 7.4 | 15.2 | 17.6 | 19.4 | 19.9 | 22.4 | 25.8 | 25.3 | 24.5 | 20.9 | 16 | 20.5 | 23 | 22.3 | 21.7 | 18.5 | 16.7 | 18.2 | 19.1 | 18.5 | 18.4 | 15.7 | 21.6 | 20.5 | 20.3 | 25.5 |
| Apparent max temperature | 12.1 | 16.1 | 14.4 | 13.4 | 2.3 | 11.7 | 12 | 13.8 | 16.7 | 21 | 23.4 | 21.2 | 18.4 | 14.5 | 11.5 | 16.7 | 18.6 | 18.6 | 14.7 | 10.5 | 14.3 | 13.9 | 14.9 | 17.2 | 14.2 | 12.3 | 19.3 | 14.7 | 19 | 22.4 |
| Mean temperature | 5.1 | 9.4 | 10.2 | 9 | 0.3 | 2.7 | 8.5 | 10.5 | 11.1 | 11.7 | 13.8 | 17.4 | 16.7 | 12.3 | 9.2 | 8.4 | 12.2 | 14.9 | 14 | 9.1 | 6.7 | 11.3 | 9.4 | 12 | 11.8 | 8.4 | 9.7 | 11.5 | 10.4 | 15.3 |
| Apparent mean temperature | -7.4 | -3.8 | -3.7 | -2.5 | -10.2 | -9.5 | -3.3 | -2 | -2.4 | -2.2 | -0.4 | 3.1 | 4.7 | 1.5 | -3.1 | -5.1 | -2 | 2.5 | 1.1 | -3.5 | -6.7 | 0.7 | -5.4 | 0 | 0.5 | -2.5 | -2 | -0.8 | -2.1 | 1 |
| Minimum temperature | -3.1 | 0.1 | 1.3 | 3.9 | -4.8 | -4.9 | 1.3 | 3 | 1.3 | 1.9 | 3.2 | 6.5 | 8.2 | 5.7 | 0.9 | -1.1 | 2.1 | 6.9 | 5.7 | 2.3 | -2.2 | 4.3 | 0.5 | 3.8 | 3.4 | 1.2 | 1.5 | 4.9 | 1.6 | 4.5 |
| Apparent min temperature | 1 | 5.9 | 5.2 | 2.6 | -5 | -1.7 | 3.8 | 5.9 | 7.5 | 8.5 | 10.6 | 13.6 | 12.2 | 7.8 | 4.8 | 4.6 | 8.1 | 10.7 | 8.6 | 3.8 | 2.3 | 6.3 | 4.4 | 8.7 | 8.3 | 4.3 | 6.7 | 7.4 | 7.5 | 12.5 |
| April | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 13 | 13 | 13 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.5 | 13.5 | 13.6 | 13.6 | 13.6 |
| Sunshine duration (h) | 11.7 | 11.8 | 11.8 | 11.3 | 11.8 | 11.9 | 11.9 | 11.9 | 9.9 | 11.9 | 12 | 12 | 11 | 12 | 12 | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 11 | 12.2 | 12 | 10.8 | 12 | 12.3 | 9.6 | 12.5 | 12.6 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.9 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.1 | 5.6 | 0.7 | 0 | 2.5 | 0 | 0 |
| Precipitation hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 5 | 5 | 0 | 5 | 0 | 0 |
| Wind speed (m/s) | 20 | 19.2 | 34.4 | 34.2 | 26.1 | 23.5 | 27.6 | 23.2 | 14.9 | 11.5 | 12 | 23.7 | 29.1 | 21.5 | 21.8 | 16.4 | 24 | 18.1 | 36.4 | 30.6 | 16.2 | 29.9 | 23.7 | 15.3 | 31.9 | 26.3 | 16.1 | 31.4 | 17.7 | 18.9 |
In April 2023, the highest daytime temperature in Riverside was 25.8°C.
While the minimum temperature at night dropped to -4.9°C.
The average nighttime and daytime temperatures during April in Riverside are 2.1°C and 19.7°C respectively.
The precipitation sum in April is about 13 mm.