Average annual temperature is 12.8 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 151 days
Number of rainy days: 205 days
Number of snow days: 9 days
Look at detailed online map of Bethlehem
* Weather data for Bethlehem 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) | 16.7 | 21.3 | 22.4 | 28.0 | 30.8 | 33.3 | 33.3 | 32.8 | 34.8 | 28.7 | 19.4 | 16.6 |
| Average daytime temperature (°C) | 8.3 | 11.5 | 11.4 | 18.9 | 22.5 | 26.4 | 29.5 | 27.8 | 25.4 | 18.9 | 11.9 | 9.5 |
| Average temperature (°C) | 3.9 | 5.0 | 5.4 | 12.1 | 15.8 | 20.1 | 23.7 | 22.0 | 19.6 | 13.8 | 6.5 | 5.2 |
| Average night temperature (°C) | 0.9 | 0.3 | 0.9 | 6.4 | 10.1 | 14.6 | 19.1 | 17.3 | 14.8 | 9.8 | 2.4 | 2.2 |
| Absolute minimum temperature (°C) | -5.6 | -10.5 | -7.7 | -1.3 | 2.3 | 9.6 | 15.2 | 12.5 | 9.2 | 1.5 | -6.5 | -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 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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) | 3.1 | 7.0 | 6.9 | 8.7 | 10.5 | 11.1 | 11.4 | 10.6 | 9.1 | 7.3 | 6.9 | 5.0 |
| Precipitation (mm) | 119 | 61 | 128 | 70 | 87 | 117 | 87 | 111 | 41 | 106 | 45 | 73 |
| Sunny days | 7 | 14 | 11 | 14 | 18 | 12 | 6 | 10 | 13 | 13 | 21 | 12 |
| Rainy days | 20 | 13 | 18 | 16 | 13 | 18 | 25 | 21 | 17 | 18 | 8 | 18 |
| Snow days | 4 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Bethlehem during the most sunny months:
The largest precipitation sum in Bethlehem is at