Generally, average daily wearther in Philadelphia through the whole of October is 13. Through the month the highs are about 21 and lows around 9. The table below has some further insights:
| Month | Degrees Celsius |
|---|---|
| Temperature | 13 |
| High Temperature | 21 |
| Low Temperature | 9 |
| Sunshine Per Day | 8 |
Useful Links: Philadelphia Weather: Average Weather & Yearly Climate