Average annual temperature is 13.0 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -16.8 °C
Number of sunny days: 165 days
Number of rainy days: 195 days
Number of snow days: 5 days
Look at detailed online map of Lake Success
* Weather data for Lake Success 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) | 17.8 | 19.8 | 15.1 | 30.4 | 28.7 | 31.6 | 33.3 | 30.7 | 34.4 | 27.5 | 19.5 | 16.2 |
| Average daytime temperature (°C) | 8.4 | 7.9 | 9.9 | 17.7 | 21.2 | 25.4 | 29.1 | 27.2 | 24.3 | 19.3 | 11.1 | 9.1 |
| Average temperature (°C) | 4.7 | 3.4 | 5.2 | 12.4 | 15.5 | 19.9 | 24.4 | 22.8 | 19.9 | 14.8 | 6.7 | 5.3 |
| Average night temperature (°C) | 1.5 | -0.7 | 1.1 | 8.0 | 10.4 | 15.5 | 20.6 | 19.0 | 16.5 | 11.1 | 2.9 | 2.2 |
| Absolute minimum temperature (°C) | -3.2 | -16.8 | -3.0 | 0.3 | 5.6 | 9.8 | 16.5 | 15.7 | 11.2 | 6.5 | -3.7 | -4.8 |
| 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 | 6.5 | 7.4 | 8.5 | 12.2 | 10.7 | 11.5 | 10.4 | 7.5 | 7.6 | 7.2 | 5.1 |
| Precipitation (mm) | 130 | 45 | 138 | 110 | 48 | 86 | 167 | 153 | 281 | 97 | 60 | 201 |
| Sunny days | 13 | 17 | 14 | 13 | 21 | 8 | 7 | 10 | 12 | 15 | 20 | 15 |
| Rainy days | 18 | 9 | 15 | 17 | 10 | 22 | 24 | 21 | 18 | 16 | 9 | 16 |
| Snow days | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Lake Success during the most sunny months:
The largest precipitation sum in Lake Success is at