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> Usa > San Antonio, Texas > Precipitation
Rainfall/ Precipitation in San Antonio, Texas, Usa
- San Antonio, Texas receives 786.9 mm (31 in) of rainfall per year, or 65.6 mm (2.6 in) per month.
- On average there are 82 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 6.8 days with a quantity of rain, sleet, snow etc. per month.
- The driest weather is in December when an average of 38.4 mm (1.5 in) of rainfall (precipitation) occurs.
- The wettest weather is in May when an average of 107.2 mm (4.2 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) | 43.4 (1.71) | 46 (1.8) | 38.6 (1.5) | 63.5 (2.5) | 107.2 (4.2) | 96.8 (3.8) | 54.9 (2.2) | 64.5 (2.5) | 86.6 (3.4) | 80.5 (3.2) | 66.5 (2.6) | 38.4 (1.5) | 786.9 (31) | |
 | Precipitation Litres/m² (Gallons/ft²) | 43.4 (1.06) | 46 (1.13) | 38.6 (0.95) | 63.5 (1.56) | 107.2 (2.63) | 96.8 (2.37) | 54.9 (1.35) | 64.5 (1.58) | 86.6 (2.12) | 80.5 (1.97) | 66.5 (1.63) | 38.4 (0.94) | 786.9 (19.3) | |
 | Number of Wet Days (probability of rain on a day) | 8 (26%) | 8 (28%) | 7 (23%) | 8 (27%) | 8 (26%) | 6 (20%) | 5 (16%) | 5 (16%) | 7 (23%) | 6 (19%) | 6 (20%) | 8 (26%) | 82 (22%) | |
 | Percentage of Sunny (Cloudy) Daylight Hours | 49 (51) | 49 (51) | 59 (41) | 55 (45) | 64 (36) | 71 (29) | 81 (19) | 81 (19) | 73 (27) | 70 (30) | 55 (45) | 58 (42) | 66 (34) |