Average annual temperature is 13.6 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -8.6 °C
Number of sunny days: 166 days
Number of rainy days: 191 days
Number of snow days: 8 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) | 17.4 | 22.9 | 23.9 | 28.6 | 30.5 | 33.5 | 33.6 | 31.7 | 33.4 | 28.6 | 22.3 | 18.5 |
| Average daytime temperature (°C) | 9.3 | 13.1 | 12.8 | 19.8 | 23.0 | 27.3 | 29.8 | 28.2 | 25.9 | 20.0 | 13.3 | 10.3 |
| Average temperature (°C) | 4.5 | 6.2 | 6.5 | 12.9 | 16.7 | 20.9 | 24.2 | 22.8 | 20.0 | 14.5 | 7.4 | 5.6 |
| Average night temperature (°C) | 1.3 | 1.5 | 1.9 | 7.1 | 11.1 | 15.4 | 19.6 | 18.2 | 15.4 | 10.5 | 3.1 | 2.3 |
| Absolute minimum temperature (°C) | -5.6 | -8.6 | -7.2 | 0.5 | 3.2 | 10.6 | 15.8 | 13.3 | 10.8 | 3.0 | -6.0 | -4.3 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.0 | 9.5 |
| 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) | 4.1 | 7.0 | 7.4 | 9.0 | 9.9 | 11.3 | 11.5 | 11.0 | 9.5 | 7.8 | 7.1 | 5.0 |
| Precipitation (mm) | 120 | 75 | 88 | 70 | 99 | 71 | 97 | 110 | 50 | 65 | 44 | 93 |
| Sunny days | 11 | 14 | 13 | 17 | 16 | 12 | 7 | 12 | 15 | 15 | 20 | 14 |
| Rainy days | 18 | 13 | 16 | 13 | 15 | 18 | 24 | 19 | 15 | 16 | 9 | 15 |
| Snow days | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Rockland during the most sunny months:
The largest precipitation sum in Rockland is at