| Month | Daily minimum (°C) | Daily maximum (°C) | Days of rain | Rainfall (mm) |
|---|---|---|---|---|
| January | 13.1 | 29.8 | 4.2 | 23.2 |
| February | 13.4 | 29.8 | 3.8 | 24.8 |
| March | 11.2 | 26.4 | 4.8 | 23.4 |
| April | 8.3 | 21.5 | 7.2 | 31.7 |
| May | 6.2 | 17.2 | 10.5 | 46.6 |
| June | 4.4 | 14.0 | 12.5 | 49.7 |
| July | 3.7 | 13.4 | 13.7 | 46.8 |
| August | 4.4 | 15.0 | 14.2 | 48.7 |
| September | 5.5 | 17.6 | 12.0 | 46.4 |
| October | 7.2 | 20.9 | 10.5 | 44.3 |
| November | 9.4 | 24.7 | 7.3 | 33.5 |
| December | 11.6 | 27.7 | 5.6 | 27.3 |
| Statistics provided by BOM for Horsham (nearest comparable weather site to Horsham) | ||||