Average annual temperature is 10.1 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -25.1 °C
Number of sunny days: 208 days
Number of rainy days: 120 days
Number of snow days: 37 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) | 4.8 | 15.5 | 19.3 | 28.4 | 27.1 | 30.4 | 34.5 | 36.9 | 36.2 | 29.4 | 22.9 | 17.5 |
| Average daytime temperature (°C) | -1.0 | 6.0 | 8.3 | 17.1 | 21.9 | 24.8 | 29.1 | 30.2 | 27.4 | 17.8 | 12.9 | 8.2 |
| Average temperature (°C) | -4.6 | -2.1 | 0.7 | 8.4 | 15.4 | 18.9 | 22.1 | 23.3 | 19.7 | 10.8 | 5.7 | 1.9 |
| Average night temperature (°C) | -7.8 | -7.1 | -4.5 | 1.8 | 9.6 | 13.7 | 16.2 | 17.5 | 13.3 | 5.4 | 0.9 | -2.1 |
| Absolute minimum temperature (°C) | -25.1 | -22.8 | -13.0 | -7.4 | 1.8 | 11.2 | 10.5 | 12.0 | 8.1 | -7.7 | -9.0 | -6.4 |
| 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) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 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) | 6.6 | 8.4 | 8.7 | 10.1 | 10.4 | 11.2 | 12.2 | 12.1 | 10.6 | 9.0 | 7.8 | 6.5 |
| Precipitation (mm) | 58 | 12 | 39 | 12 | 93 | 122 | 104 | 13 | 34 | 16 | 9 | 22 |
| Sunny days | 16 | 21 | 16 | 18 | 7 | 8 | 15 | 20 | 21 | 22 | 23 | 21 |
| Rainy days | 1 | 2 | 7 | 12 | 24 | 22 | 16 | 11 | 9 | 7 | 5 | 4 |
| Snow days | 14 | 5 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 6 |
The best time to visit Rockland during the most sunny months:
The largest precipitation sum in Rockland is at