Average annual temperature is 14.5 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -7.7 °C
Number of sunny days: 177 days
Number of rainy days: 185 days
Number of snow days: 3 days
Look at detailed online map of Bethesda
* Weather data for Bethesda 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) | 20.3 | 24.7 | 24.9 | 29.5 | 28.9 | 33.1 | 36.5 | 34.4 | 34.3 | 29.8 | 26.2 | 20.1 |
| Average daytime temperature (°C) | 11.2 | 14.5 | 14.6 | 21.1 | 23.6 | 27.5 | 31.8 | 30.0 | 27.1 | 21.3 | 14.9 | 11.8 |
| Average temperature (°C) | 5.7 | 7.6 | 7.9 | 13.8 | 17.2 | 21.2 | 25.2 | 23.8 | 20.9 | 15.3 | 8.3 | 6.2 |
| Average night temperature (°C) | 2.3 | 3.0 | 2.8 | 7.7 | 11.5 | 15.6 | 19.8 | 18.7 | 15.5 | 10.5 | 3.7 | 2.4 |
| Absolute minimum temperature (°C) | -6.6 | -7.6 | -7.7 | 0.8 | 3.7 | 10.0 | 16.3 | 13.3 | 11.1 | 2.4 | -6.3 | -4.9 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| 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 | 7.2 | 7.6 | 9.9 | 9.9 | 11.4 | 11.8 | 10.5 | 9.7 | 7.8 | 7.3 | 5.7 |
| Precipitation (mm) | 86 | 110 | 120 | 62 | 78 | 53 | 79 | 88 | 38 | 48 | 49 | 86 |
| Sunny days | 11 | 13 | 20 | 18 | 14 | 13 | 6 | 9 | 17 | 17 | 22 | 17 |
| Rainy days | 19 | 13 | 11 | 12 | 17 | 17 | 25 | 22 | 13 | 14 | 8 | 14 |
| Snow days | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Bethesda during the most sunny months:
The largest precipitation sum in Bethesda is at