Average annual temperature is 9.4 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: -24.9 °C
Number of sunny days: 127 days
Number of rainy days: 206 days
Number of snow days: 32 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) | 14.5 | 13.6 | 14.2 | 28.4 | 28.6 | 30.6 | 29.4 | 27.1 | 29.5 | 26.5 | 15.1 | 11.7 |
| Average daytime temperature (°C) | 4.0 | 4.5 | 5.9 | 15.7 | 19.0 | 22.4 | 25.9 | 23.2 | 21.1 | 16.1 | 7.2 | 5.7 |
| Average temperature (°C) | 0.7 | -0.9 | 0.9 | 9.4 | 12.7 | 17.1 | 21.2 | 18.7 | 16.5 | 11.5 | 2.6 | 2.1 |
| Average night temperature (°C) | -2.2 | -5.3 | -3.2 | 4.6 | 6.9 | 12.9 | 17.3 | 15.1 | 13.1 | 7.9 | -0.8 | -0.1 |
| Absolute minimum temperature (°C) | -9.2 | -24.9 | -10.5 | -4.1 | 0.1 | 7.6 | 12.3 | 10.5 | 7.0 | 0.8 | -7.3 | -6.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.6 | 5.8 | 6.7 | 8.4 | 12.0 | 10.5 | 11.2 | 10.0 | 8.3 | 7.0 | 6.9 | 3.2 |
| Precipitation (mm) | 90 | 61 | 109 | 116 | 54 | 102 | 156 | 196 | 115 | 72 | 68 | 154 |
| Sunny days | 9 | 10 | 8 | 11 | 20 | 7 | 2 | 10 | 12 | 13 | 14 | 11 |
| Rainy days | 17 | 11 | 12 | 17 | 11 | 23 | 29 | 21 | 18 | 18 | 13 | 16 |
| Snow days | 5 | 7 | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 |
The best time to visit Rockland during the most sunny months:
The largest precipitation sum in Rockland is at