Average annual temperature is 11.1 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -13.4 °C
Number of sunny days: 144 days
Number of rainy days: 200 days
Number of snow days: 21 days
Look at detailed online map of Rockland
* Weather data for Rockland 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) | 14.6 | 19.4 | 17.9 | 28.0 | 31.7 | 33.2 | 31.8 | 30.9 | 32.2 | 27.2 | 16.5 | 15.0 |
| Average daytime temperature (°C) | 5.4 | 9.2 | 8.2 | 17.3 | 21.5 | 24.4 | 27.7 | 26.1 | 23.2 | 16.8 | 9.7 | 7.5 |
| Average temperature (°C) | 1.7 | 2.3 | 2.8 | 10.5 | 14.8 | 18.7 | 22.1 | 20.5 | 17.8 | 12.3 | 4.9 | 3.9 |
| Average night temperature (°C) | -0.9 | -2.4 | -1.1 | 5.1 | 8.6 | 13.8 | 17.6 | 16.2 | 13.6 | 8.9 | 1.3 | 1.4 |
| Absolute minimum temperature (°C) | -7.7 | -13.4 | -7.5 | -3.6 | 1.7 | 8.9 | 13.7 | 11.5 | 8.3 | 0.7 | -7.4 | -5.0 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 2.5 | 6.3 | 5.8 | 8.1 | 10.7 | 10.5 | 11.3 | 10.6 | 8.7 | 6.0 | 6.4 | 3.4 |
| Precipitation (mm) | 136 | 75 | 118 | 79 | 40 | 133 | 150 | 92 | 37 | 80 | 56 | 80 |
| Sunny days | 5 | 10 | 7 | 13 | 21 | 11 | 10 | 9 | 15 | 17 | 15 | 11 |
| Rainy days | 20 | 15 | 18 | 17 | 10 | 19 | 21 | 22 | 15 | 14 | 13 | 16 |
| Snow days | 6 | 3 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The best time to visit Rockland during the most sunny months:
The largest precipitation sum in Rockland is at