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> Usa > Philadelphia, Pennsylvania > Precipitation
Rainfall/ Precipitation in Philadelphia, Pennsylvania, Usa
- Philadelphia, Pennsylvania receives 1051.8 mm (41.4 in) of rainfall per year, or 87.7 mm (3.5 in) per month.
- On average there are 121 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 10.1 days with a quantity of rain, sleet, snow etc. per month.
- The driest weather is in October when an average of 66.5 mm (2.6 in) of rainfall (precipitation) occurs.
- The wettest weather is in July when an average of 108.7 mm (4.3 in) of rainfall (precipitation) occurs.
Precipitation Table
| Climate Variable | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Precipitation mm (in) | 81.5 (3.21) | 70.9 (2.8) | 87.9 (3.5) | 91.9 (3.6) | 95.3 (3.8) | 95 (3.7) | 108.7 (4.3) | 96.5 (3.8) | 86.9 (3.4) | 66.5 (2.6) | 84.8 (3.3) | 85.9 (3.4) | 1051.8 (41.4) | |
 | Precipitation Litres/m² (Gallons/ft²) | 81.5 (2) | 70.9 (1.74) | 87.9 (2.16) | 91.9 (2.25) | 95.3 (2.34) | 95 (2.33) | 108.7 (2.67) | 96.5 (2.37) | 86.9 (2.13) | 66.5 (1.63) | 84.8 (2.08) | 85.9 (2.11) | 1051.8 (25.8) | |
 | Number of Wet Days (probability of rain on a day) | 12 (39%) | 9 (32%) | 12 (39%) | 11 (37%) | 11 (35%) | 10 (33%) | 10 (32%) | 10 (32%) | 9 (30%) | 8 (26%) | 9 (30%) | 10 (32%) | 121 (33%) | |
 | Percentage of Sunny (Cloudy) Daylight Hours | 50 (50) | 51 (49) | 58 (42) | 56 (44) | 59 (41) | 67 (33) | 66 (34) | 61 (39) | 61 (39) | 62 (38) | 52 (48) | 50 (50) | 60 (40) |