Average annual temperature is 22.5 °C
Absolute maximum temperature: 36.0 °C
Absolute minimum temperature: 2.5 °C
Number of sunny days: 153 days
Number of rainy days: 212 days
Look at detailed online map of Montclair
* Weather data for Montclair 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) | 27.9 | 30.1 | 31.6 | 31.9 | 31.9 | 35.0 | 36.0 | 36.0 | 33.7 | 30.5 | 29.8 | 27.9 |
| Average daytime temperature (°C) | 21.9 | 25.6 | 26.6 | 28.4 | 29.0 | 31.3 | 32.8 | 33.5 | 30.6 | 27.3 | 23.7 | 20.8 |
| Average temperature (°C) | 16.2 | 19.3 | 20.6 | 23.0 | 23.9 | 26.0 | 27.8 | 28.6 | 26.3 | 22.7 | 19.2 | 16.4 |
| Average night temperature (°C) | 12.1 | 14.9 | 16.3 | 19.2 | 20.1 | 22.4 | 24.6 | 25.1 | 23.1 | 19.2 | 15.9 | 13.3 |
| Absolute minimum temperature (°C) | 2.5 | 8.4 | 7.8 | 14.1 | 15.9 | 20.0 | 23.6 | 23.1 | 19.0 | 12.1 | 6.7 | 6.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.2 | 12.0 | 12.9 | 13.6 | 13.9 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.4 | 9.1 | 10.0 | 9.8 | 11.6 | 11.1 | 11.0 | 11.0 | 10.3 | 9.0 | 6.8 | 6.8 |
| Precipitation (mm) | 66 | 16 | 39 | 95 | 108 | 120 | 182 | 126 | 220 | 73 | 116 | 107 |
| Sunny days | 23 | 20 | 16 | 9 | 14 | 6 | 2 | 4 | 6 | 20 | 17 | 16 |
| Rainy days | 8 | 8 | 15 | 21 | 17 | 24 | 29 | 27 | 24 | 11 | 13 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Montclair is at