Average annual temperature is 20.0 °C
Absolute maximum temperature: 44.2 °C
Absolute minimum temperature: -10.1 °C
Number of sunny days: 237 days
Number of rainy days: 128 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) | 27.7 | 30.1 | 30.0 | 34.5 | 35.5 | 40.9 | 42.7 | 44.2 | 43.7 | 33.8 | 30.8 | 24.7 |
| Average daytime temperature (°C) | 16.9 | 16.6 | 21.0 | 24.8 | 28.4 | 33.5 | 38.4 | 40.7 | 34.9 | 26.2 | 19.5 | 16.0 |
| Average temperature (°C) | 9.9 | 8.9 | 14.1 | 17.8 | 22.5 | 27.0 | 31.8 | 34.3 | 28.8 | 19.9 | 13.2 | 10.3 |
| Average night temperature (°C) | 4.6 | 3.7 | 9.2 | 12.2 | 17.7 | 21.7 | 26.0 | 27.8 | 23.3 | 15.0 | 8.2 | 6.0 |
| Absolute minimum temperature (°C) | -10.1 | -5.8 | -1.0 | 5.7 | 11.7 | 16.9 | 21.5 | 21.5 | 17.0 | -1.2 | -1.4 | -0.7 |
| 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) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 6.9 | 8.8 | 10.1 | 10.4 | 11.3 | 12.2 | 12.2 | 10.3 | 8.6 | 8.0 | 7.8 |
| Precipitation (mm) | 24 | 61 | 52 | 87 | 78 | 110 | 12 | 2 | 59 | 117 | 11 | 45 |
| Sunny days | 25 | 17 | 22 | 19 | 7 | 10 | 21 | 28 | 21 | 21 | 24 | 22 |
| Rainy days | 6 | 11 | 9 | 11 | 24 | 20 | 10 | 3 | 9 | 10 | 6 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Olney during the most sunny months:
The largest precipitation sum in Olney is at