Average temperature in April is 4.9 °C
Average daytime temperature is 11.6 °C
Average night temperature is -0.8 °C
Absolute maximum temperature: 26 °C
Absolute minimum temperature: -13.3 °C
Number of sunny days: 20
Number of rainy days: 6
Number of snow days: 4
Precipitation sum: 40 mm
* Weather data for Rapid City United States is based on climate observations for 2023 year
| Aprile (°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 | 3.7 | 7.9 | 6.2 | -0.6 | -4 | -0.2 | 3.7 | 6.4 | 16.8 | 20.6 | 26 | 23.7 | 18.2 | 11.6 | 8 | 11.3 | 15.8 | 18.7 | 14 | 12.1 | 4.7 | 5.3 | 9.4 | 13.7 | 13.6 | 18.4 | 17 | 16.2 | 16.2 | 14.5 |
| Apparent max temperature | 1.6 | 5.1 | 2 | -3.6 | -6 | -2.8 | 1.7 | 4.2 | 16.1 | 19.4 | 22.1 | 18.6 | 15.7 | 8.5 | 0.9 | 8.2 | 12.5 | 16.6 | 10.6 | 6.3 | -3.3 | 0.2 | 7 | 9.3 | 7 | 15.7 | 12.2 | 9.9 | 10.3 | 9.1 |
| Mean temperature | -4.3 | 4.2 | 1.2 | -4.1 | -7 | -7.2 | -3 | -1.3 | 6.1 | 10.1 | 16.4 | 16.2 | 8.4 | 6.9 | 3.7 | 4.4 | 6.6 | 10.2 | 9.5 | 4.2 | 0.1 | 0 | 1.4 | 5 | 4.3 | 10.1 | 12 | 8.7 | 12.4 | 8.1 |
| Apparent mean temperature | -16.6 | -4.3 | -6.2 | -13.7 | -15.7 | -19 | -13.7 | -13.9 | -4.9 | -3 | 4 | 5.5 | -1.6 | -3 | -4.4 | -6 | -4.7 | -1.7 | -0.5 | -4.8 | -11 | -9.3 | -8.8 | -6.5 | -4.4 | -1.6 | 1.9 | -0.7 | 4.1 | -2.7 |
| Minimum temperature | -12 | 0.6 | -1.9 | -6.6 | -9.1 | -13.3 | -8.5 | -8.4 | -1.2 | 1.5 | 8.6 | 10.1 | 2.1 | 2.8 | 1.3 | -1.4 | -0.7 | 2 | 3.7 | -1 | -3.7 | -3.3 | -4.8 | -2.3 | -0.5 | 1.9 | 5.7 | 3.8 | 8.7 | 1.3 |
| Apparent min temperature | -8.6 | -0.5 | -3.5 | -9.6 | -13.1 | -11.9 | -7.2 | -5.2 | 2.6 | 6.7 | 12.3 | 11.6 | 6 | 1.2 | -2.4 | 0.1 | 2.9 | 6.6 | 5 | -1.6 | -7.8 | -6.2 | -2.6 | 0.9 | 0.7 | 7 | 7.3 | 2.6 | 6.7 | 3.5 |
| Aprile | 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) | 12.7 | 12.8 | 12.8 | 12.9 | 12.9 | 13 | 13 | 13.1 | 13.1 | 13.2 | 13.2 | 13.3 | 13.3 | 13.4 | 13.4 | 13.5 | 13.5 | 13.6 | 13.6 | 13.7 | 13.7 | 13.8 | 13.8 | 13.9 | 13.9 | 14 | 14 | 14.1 | 14.1 | 14.1 |
| Sunshine duration (h) | 10.4 | 11.9 | 2.1 | 0 | 9 | 11.9 | 12 | 12 | 12 | 12.1 | 12.1 | 12.1 | 12 | 8.6 | 10 | 11.8 | 12.3 | 6.9 | 10.1 | 10.7 | 11.1 | 9.6 | 11.2 | 11.2 | 10.6 | 12.1 | 9.1 | 11.4 | 12.9 | 13 |
| Precipitation (mm) | 0 | 0 | 1.1 | 23.6 | 1.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.3 | 0 | 0 | 0 | 0.4 | 1 | 0.1 | 0 | 0 | 0 | 0 | 11.5 | 0 | 0.2 | 0 | 0 | 0 |
| Precipitation hours | 0 | 0 | 7 | 24 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 |
| Wind speed (m/s) | 26.5 | 32.4 | 24 | 30.3 | 32.4 | 19.5 | 18.6 | 15.1 | 16.9 | 15.5 | 31.1 | 33 | 11.2 | 32.4 | 37.7 | 25.9 | 23.8 | 24.3 | 29.2 | 39.7 | 40.7 | 35.6 | 21.9 | 23.8 | 28.1 | 17.2 | 45.8 | 44.6 | 37.7 | 31.4 |
In April 2023, the highest daytime temperature in Rapid City was 26°C.
While the minimum temperature at night dropped to -13.3°C.
The average nighttime and daytime temperatures during April in Rapid City are -0.8°C and 11.6°C respectively.
The precipitation sum in April is about 40 mm.