Average temperature in April is 12.7 °C
Average daytime temperature is 20.2 °C
Average night temperature is 6.9 °C
Absolute maximum temperature: 29.9 °C
Absolute minimum temperature: -3.3 °C
Number of sunny days: 22
Number of rainy days: 8
Number of snow days:
Precipitation sum: 92 mm
* Weather data for Ontario 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 | 14.6 | 22.4 | 18 | 29.9 | 21.1 | 13.1 | 17.8 | 19.1 | 21.6 | 23 | 26.4 | 27.8 | 26.5 | 28 | 26.6 | 15.4 | 18.5 | 25.2 | 27.6 | 18.1 | 13.6 | 10.6 | 11.9 | 18.9 | 17 | 19 | 18.3 | 17.7 | 22.6 | 16.3 |
| Apparent max temperature | 9.3 | 21.2 | 16.9 | 26.2 | 21.3 | 11.3 | 14.4 | 15.7 | 18.6 | 22.6 | 23.6 | 24.4 | 22.8 | 25 | 23.2 | 7.6 | 16.1 | 22.6 | 25.2 | 17.4 | 10.7 | 5.4 | 8.7 | 15.6 | 14.7 | 16.4 | 16.2 | 16.4 | 18 | 10.7 |
| Mean temperature | 6.7 | 12.3 | 11.9 | 16.8 | 5.6 | 4.7 | 9.4 | 11.7 | 13.7 | 16.3 | 17.3 | 20.5 | 20.5 | 21 | 13.2 | 8.6 | 10.5 | 15.6 | 21.3 | 15.8 | 9.5 | 5.7 | 5.7 | 10.6 | 11.6 | 12.6 | 12.8 | 13.9 | 13.2 | 11.5 |
| Apparent mean temperature | -6.6 | 1.4 | 4.8 | 3.1 | -8.1 | -7.6 | -0.8 | 0.5 | 2.8 | 8 | 8.6 | 11.3 | 11.2 | 12.2 | 2.2 | -2.7 | -1.5 | 4.1 | 15 | 7.2 | 1.2 | -5.1 | -4.6 | 0.5 | 3.2 | 4.1 | 4.9 | 8.4 | 2.1 | 1.4 |
| Minimum temperature | 1 | 5.8 | 8.9 | 7.6 | -1.5 | -3.3 | 3.1 | 4.9 | 7.2 | 10.7 | 10.4 | 15 | 14.8 | 15.4 | 7.4 | 3.8 | 2.7 | 8.1 | 17.7 | 11.7 | 5.6 | 0.9 | -0.3 | 4.8 | 6 | 6.8 | 7.4 | 10 | 6 | 7.3 |
| Apparent min temperature | 0.6 | 8.3 | 8.5 | 13.7 | 0.3 | 1.2 | 5.5 | 7.5 | 9.8 | 14.3 | 15.4 | 16.9 | 16.6 | 17.7 | 10.2 | 2.1 | 6.3 | 12.2 | 19.2 | 12.8 | 5 | 0.1 | 1.6 | 6.7 | 8.8 | 9.9 | 10.7 | 11.8 | 9.2 | 5.9 |
| 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 | 12.7 | 12.7 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 13 | 13 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.4 | 13.4 | 13.4 | 13.5 | 13.5 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 |
| Sunshine duration (h) | 11.3 | 11.7 | 4.3 | 11.7 | 11.6 | 11.9 | 11.9 | 12 | 10.9 | 11.1 | 12.1 | 12.2 | 12.3 | 12.3 | 2.2 | 10.8 | 12.4 | 12.5 | 10.3 | 8.5 | 10.7 | 11.6 | 9.9 | 10.4 | 6.9 | 11.9 | 6 | 4.5 | 10 | 12.8 |
| Precipitation (mm) | 0.1 | 0 | 1 | 0 | 5.2 | 0 | 0 | 0 | 0 | 3.7 | 0 | 0 | 0 | 0 | 52.7 | 0 | 0 | 0 | 4.2 | 23.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.4 | 0 | 0 |
| Precipitation hours | 1 | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 6 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 |
| Wind speed (m/s) | 41.8 | 25.9 | 20.3 | 35.1 | 26.8 | 12.5 | 17.7 | 18.8 | 17.9 | 18.9 | 24.5 | 27.8 | 27.5 | 29.2 | 32.9 | 40.2 | 28.5 | 24.8 | 32.9 | 33.2 | 29.7 | 28.2 | 16.3 | 19.1 | 17.4 | 15.6 | 11.9 | 25.6 | 35 | 35.9 |
In April 2023, the highest daytime temperature in Ontario was 29.9°C.
While the minimum temperature at night dropped to -3.3°C.
The average nighttime and daytime temperatures during April in Ontario are 6.9°C and 20.2°C respectively.
The precipitation sum in April is about 92 mm.