Average annual temperature is 12.0 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: -11.2 °C
Number of sunny days: 173 days
Number of rainy days: 180 days
Number of snow days: 12 days
Look at detailed online map of Bethlehem (historical)
* Weather data for Bethlehem (historical) 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 | 20.5 | 20.1 | 26.1 | 29.3 | 32.7 | 32.5 | 31.5 | 32.0 | 28.3 | 20.1 | 16.6 |
| Average daytime temperature (°C) | 5.8 | 10.3 | 10.1 | 17.3 | 21.6 | 25.8 | 28.2 | 26.8 | 24.5 | 18.1 | 11.3 | 8.6 |
| Average temperature (°C) | 2.1 | 3.4 | 4.3 | 11.0 | 15.5 | 20.0 | 23.2 | 21.4 | 19.1 | 13.4 | 5.8 | 4.5 |
| Average night temperature (°C) | -0.9 | -1.3 | -0.1 | 5.4 | 9.8 | 14.4 | 18.5 | 16.6 | 14.4 | 9.2 | 1.6 | 1.6 |
| Absolute minimum temperature (°C) | -11.2 | -10.4 | -7.8 | -1.0 | 2.4 | 8.7 | 14.3 | 10.2 | 8.3 | -2.1 | -7.4 | -4.5 |
| 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) | 3.2 | 7.1 | 7.1 | 9.0 | 10.5 | 10.5 | 12.1 | 10.9 | 9.3 | 7.1 | 7.1 | 4.3 |
| Precipitation (mm) | 132 | 58 | 149 | 99 | 66 | 125 | 101 | 105 | 28 | 72 | 42 | 75 |
| Sunny days | 8 | 17 | 12 | 15 | 22 | 15 | 5 | 16 | 17 | 13 | 21 | 12 |
| Rainy days | 19 | 11 | 14 | 15 | 9 | 15 | 26 | 15 | 13 | 17 | 8 | 18 |
| Snow days | 4 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
The best time to visit Bethlehem (historical) during the most sunny months:
The largest precipitation sum in Bethlehem (historical) is at