Average annual temperature is 14.7 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: -8.8 °C
Number of sunny days: 179 days
Number of rainy days: 185 days
Number of snow days: 1 day
Look at detailed online map of Occoquan
* Weather data for Occoquan 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) | 17.8 | 24.0 | 25.3 | 31.0 | 28.9 | 32.3 | 38.1 | 33.8 | 36.7 | 28.2 | 26.5 | 17.3 |
| Average daytime temperature (°C) | 10.0 | 12.4 | 13.6 | 22.1 | 22.7 | 27.5 | 31.4 | 30.3 | 26.7 | 21.4 | 13.8 | 10.8 |
| Average temperature (°C) | 6.0 | 7.0 | 7.8 | 15.5 | 16.9 | 21.5 | 25.4 | 24.4 | 21.3 | 15.5 | 8.1 | 6.1 |
| Average night temperature (°C) | 2.8 | 2.9 | 3.1 | 10.4 | 11.9 | 16.5 | 20.9 | 19.8 | 16.8 | 10.9 | 3.9 | 2.5 |
| Absolute minimum temperature (°C) | -2.2 | -8.8 | -4.2 | 3.9 | 6.7 | 12.7 | 18.4 | 15.7 | 10.6 | 5.2 | -5.3 | -3.2 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.2 | 6.4 | 7.7 | 9.0 | 10.6 | 11.0 | 11.9 | 10.8 | 8.6 | 8.5 | 7.7 | 5.5 |
| Precipitation (mm) | 71 | 70 | 54 | 123 | 37 | 136 | 172 | 77 | 108 | 33 | 62 | 195 |
| Sunny days | 16 | 15 | 15 | 16 | 15 | 10 | 8 | 12 | 15 | 18 | 22 | 17 |
| Rainy days | 15 | 13 | 16 | 14 | 16 | 20 | 23 | 19 | 15 | 13 | 7 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Occoquan during the most sunny months:
The largest precipitation sum in Occoquan is at