Average annual temperature is 12.8 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -16.7 °C
Number of sunny days: 171 days
Number of rainy days: 190 days
Number of snow days: 4 days
Look at detailed online map of Roslyn Heights
* Weather data for Roslyn Heights 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) | 18.3 | 20.3 | 15.1 | 29.8 | 28.4 | 30.9 | 32.6 | 30.7 | 33.9 | 27.8 | 19.3 | 16.4 |
| Average daytime temperature (°C) | 8.3 | 7.8 | 9.9 | 17.5 | 20.7 | 24.9 | 28.9 | 26.9 | 24.0 | 19.3 | 11.0 | 9.1 |
| Average temperature (°C) | 4.7 | 3.4 | 5.2 | 12.2 | 15.2 | 19.4 | 24.2 | 22.6 | 19.8 | 14.7 | 6.7 | 5.3 |
| Average night temperature (°C) | 1.6 | -0.5 | 1.3 | 8.0 | 10.4 | 15.3 | 20.5 | 18.8 | 16.5 | 11.2 | 3.0 | 2.2 |
| Absolute minimum temperature (°C) | -3.2 | -16.7 | -3.2 | 0.4 | 5.5 | 9.8 | 16.6 | 15.8 | 11.8 | 6.6 | -3.9 | -4.7 |
| 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 | 15.0 | 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) | 4.8 | 6.6 | 7.4 | 8.5 | 12.3 | 10.9 | 11.6 | 10.7 | 7.6 | 7.6 | 7.3 | 5.2 |
| Precipitation (mm) | 163 | 48 | 131 | 108 | 45 | 102 | 167 | 150 | 259 | 93 | 51 | 187 |
| Sunny days | 13 | 16 | 14 | 16 | 22 | 9 | 7 | 11 | 11 | 15 | 20 | 17 |
| Rainy days | 18 | 10 | 16 | 14 | 9 | 21 | 24 | 20 | 19 | 16 | 9 | 14 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Roslyn Heights during the most sunny months:
The largest precipitation sum in Roslyn Heights is at