Average annual temperature is 12.0 °C
Absolute maximum temperature: 41.6 °C
Absolute minimum temperature: -8.1 °C
Number of sunny days: 195 days
Number of rainy days: 158 days
Number of snow days: 12 days
Look at detailed online map of Mountain Brook
* Weather data for Mountain Brook 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) | 10.8 | 13.7 | 16.2 | 27.8 | 33.9 | 34.1 | 38.3 | 41.6 | 33.1 | 26.3 | 15.1 | 13.1 |
| Average daytime temperature (°C) | 6.9 | 7.7 | 10.0 | 14.5 | 24.8 | 27.5 | 32.2 | 32.3 | 24.3 | 18.0 | 9.7 | 7.7 |
| Average temperature (°C) | 3.1 | 2.9 | 4.8 | 8.7 | 17.1 | 19.2 | 23.3 | 23.6 | 17.3 | 12.1 | 6.3 | 4.9 |
| Average night temperature (°C) | 0.6 | -0.2 | 1.2 | 4.5 | 11.0 | 12.2 | 14.6 | 16.3 | 12.0 | 8.0 | 3.9 | 3.4 |
| Absolute minimum temperature (°C) | -6.9 | -7.6 | -8.1 | -0.2 | 4.8 | 7.5 | 11.5 | 11.5 | 7.3 | -1.9 | -2.6 | -0.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.4 | 11.9 | 13.5 | 14.9 | 15.7 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.1 | 5.5 | 7.2 | 8.3 | 12.3 | 13.5 | 13.9 | 11.9 | 9.4 | 7.6 | 4.6 | 1.8 |
| Precipitation (mm) | 108 | 76 | 79 | 110 | 22 | 13 | 0 | 19 | 45 | 70 | 127 | 218 |
| Sunny days | 9 | 10 | 6 | 11 | 22 | 23 | 30 | 23 | 20 | 17 | 14 | 10 |
| Rainy days | 20 | 14 | 22 | 17 | 9 | 7 | 1 | 8 | 10 | 14 | 16 | 20 |
| Snow days | 2 | 4 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Mountain Brook during the most sunny months:
Months with the longest average daylight duration in Mountain Brook:
The largest precipitation sum in Mountain Brook is at