Average annual temperature is 12.0 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -11.8 °C
Number of sunny days: 150 days
Number of rainy days: 209 days
Number of snow days: 6 days
Look at detailed online map of Bryn Mawr
* Weather data for Bryn Mawr 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) | 16.3 | 20.6 | 21.0 | 27.7 | 30.1 | 32.0 | 32.4 | 31.9 | 33.2 | 27.5 | 18.5 | 16.0 |
| Average daytime temperature (°C) | 7.5 | 10.7 | 10.3 | 18.3 | 21.6 | 25.5 | 28.5 | 27.3 | 24.4 | 18.0 | 11.1 | 8.7 |
| Average temperature (°C) | 3.2 | 4.1 | 4.4 | 11.4 | 15.0 | 19.3 | 22.7 | 21.4 | 18.6 | 13.1 | 5.8 | 4.5 |
| Average night temperature (°C) | 0.2 | -0.7 | 0.0 | 5.7 | 9.0 | 13.9 | 18.1 | 16.7 | 13.9 | 9.1 | 1.7 | 1.4 |
| Absolute minimum temperature (°C) | -6.8 | -11.8 | -8.1 | -2.2 | 1.8 | 8.9 | 14.4 | 11.6 | 8.5 | 1.1 | -7.1 | -5.1 |
| 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 | 9.4 |
| 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) | 3.0 | 6.9 | 6.2 | 8.7 | 10.5 | 10.7 | 11.2 | 10.6 | 8.8 | 6.5 | 6.6 | 4.3 |
| Precipitation (mm) | 118 | 61 | 104 | 50 | 79 | 126 | 124 | 97 | 41 | 106 | 38 | 65 |
| Sunny days | 8 | 15 | 10 | 15 | 21 | 13 | 3 | 9 | 11 | 14 | 19 | 12 |
| Rainy days | 22 | 12 | 19 | 15 | 10 | 17 | 28 | 22 | 19 | 17 | 10 | 18 |
| Snow days | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Bryn Mawr during the most sunny months:
The largest precipitation sum in Bryn Mawr is at