Average annual temperature is 19.4 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -1.1 °C
Number of sunny days: 161 days
Number of rainy days: 204 days
Look at detailed online map of Olney
* Weather data for Olney United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 25.7 | 28.7 | 30.9 | 31.6 | 31.2 | 34.1 | 36.7 | 36.7 | 33.5 | 29.2 | 25.9 | 24.1 |
| Average daytime temperature (°C) | 18.5 | 21.8 | 23.4 | 26.0 | 26.4 | 30.3 | 33.7 | 33.6 | 29.9 | 24.8 | 19.4 | 16.6 |
| Average temperature (°C) | 12.2 | 15.7 | 16.8 | 19.2 | 20.9 | 24.5 | 27.8 | 27.7 | 23.7 | 18.9 | 13.8 | 11.4 |
| Average night temperature (°C) | 7.4 | 11.3 | 11.3 | 13.9 | 16.2 | 20.1 | 23.2 | 23.1 | 19.1 | 14.3 | 9.8 | 7.6 |
| Absolute minimum temperature (°C) | -1.1 | 1.6 | 1.1 | 6.9 | 10.2 | 15.5 | 19.7 | 20.7 | 14.8 | 8.1 | -0.3 | -0.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.1 | 8.0 | 9.2 | 10.0 | 9.6 | 10.6 | 11.3 | 11.3 | 10.3 | 8.8 | 6.8 | 6.6 |
| Precipitation (mm) | 119 | 83 | 62 | 127 | 102 | 203 | 101 | 163 | 67 | 51 | 60 | 147 |
| Sunny days | 15 | 14 | 16 | 12 | 7 | 8 | 4 | 7 | 18 | 22 | 19 | 19 |
| Rainy days | 16 | 14 | 15 | 18 | 24 | 22 | 27 | 24 | 12 | 9 | 11 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Olney is at