Rainfall Data San Antonio Dam
| Month |
2013 |
2012 | 2011 | 2010 | 2009 | 2008 | 2007 |
| January | 1.45" | 0.77" | 0.71" | 8.10" | 0.45" | 11.85" | |
| February | 1.10" | 2.04" | 4.21" | 5.53" | 7.04" | 2.22" | |
| March | .49" | 4.04" | 4.67" | 0.87" | 0.44" | 0.43" | |
| April | .16" | 2.02" | 0 04" | 2.48" | 0.52" | 0.00" | |
| May | .04" | 0.60" | 0.07" | 0.00" | 2.66" | 0.00" | |
| June | 0" | 0.05" | 0.02" | 0.19" | 0.00" | 0.00" | |
| July | 0" | 0.00" | 0.00" | 0.00" | 0.05" | 0.01" | |
| August | 0" | 0.00" | 0.00" | 0.00" | 0.00" | 0.00" | |
| September | 0" | 0.00" | 0.03" | 0.00" | 0.00" | 0.46" | |
| October | .17" | 1.27" | 1.38" | 1.44" | 0.19" | 0.22" | |
| November | 1.48" | 1.32" | 2.15" | 0.85" | 2.14" | 1.07" | |
| December | 2.82" | 0.52" | 17.80" | 5.60" | 4.47" | 3.13" | |
| Total for the year | 3.20" | 13.38" | 13.39" | 38.43" | 16.53" | 24.01" | |
| % of Long-term average | 164% | 71% | 103% | ||||
| 1958-2008 Annual average: 23.39 inches | |||||||
