Average annual temperature is 18.7 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: 2.3 °C
Number of sunny days: 250 days
Number of rainy days: 115 days
Look at detailed online map of Old Plains
* Weather data for Old Plains Australia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 39.3 | 39.5 | 36.6 | 29.5 | 26.7 | 18.7 | 19.5 | 29.5 | 34.0 | 35.8 | 39.7 | 40.0 |
| Average daytime temperature (°C) | 33.9 | 33.7 | 30.7 | 22.8 | 21.5 | 15.1 | 16.1 | 18.9 | 22.2 | 27.9 | 32.0 | 33.0 |
| Average temperature (°C) | 25.8 | 25.5 | 23.1 | 16.5 | 15.1 | 10.4 | 11.1 | 12.6 | 15.9 | 20.0 | 24.3 | 24.9 |
| Average night temperature (°C) | 18.7 | 18.5 | 16.8 | 11.2 | 9.9 | 6.2 | 6.9 | 7.4 | 10.8 | 13.2 | 17.6 | 17.7 |
| Absolute minimum temperature (°C) | 13.7 | 13.8 | 14.0 | 7.1 | 3.6 | 2.8 | 2.7 | 2.3 | 4.5 | 7.9 | 13.4 | 12.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.9 | 13.2 | 12.3 | 11.3 | 10.5 | 10.2 | 10.3 | 11.0 | 11.9 | 12.9 | 13.7 | 14.1 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 12.7 | 12.2 | 10.6 | 9.3 | 8.1 | 7.7 | 7.6 | 8.6 | 9.8 | 11.8 | 12.1 | 12.8 |
| Precipitation (mm) | 5 | 0 | 30 | 8 | 31 | 39 | 30 | 26 | 29 | 1 | 15 | 3 |
| Sunny days | 25 | 28 | 21 | 21 | 20 | 13 | 13 | 18 | 12 | 29 | 21 | 29 |
| Rainy days | 6 | 0 | 10 | 9 | 11 | 17 | 18 | 13 | 18 | 2 | 9 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Old Plains is at