Painter precip probability equal or less                              
      0.05   0.10   0.20   0.30   0.40   0.50   0.60   0.70   0.80   0.90   0.95

Jan   1.63   1.91   2.29   2.60   2.88   3.16   3.46   3.79   4.22   4.86   5.43
Feb   1.54   1.83   2.22   2.53   2.83   3.12   3.43   3.79   4.24   4.92   5.53
Mar   1.82   2.17   2.66   3.06   3.44   3.81   4.21   4.67   5.24   6.12   6.91
Apr   1.14   1.42   1.80   2.13   2.39   2.75   3.08   3.47   3.97   4.73   5.43
May   0.72   1.02   1.50   1.92   2.35   2.81   3.32   3.93   4.74   6.03   7.24
Jun   0.95   1.29   1.82   2.27   2.72   3.19   3.72   4.34   5.15   6.43   7.62
Jul  0.85   1.25   1.90   2.51   3.12   3.78   4.53   5.44   6.65   8.59   10.43
Aug  0.79   1.18   1.84   2.45   3.07   3.75   4.52   5.46   6.71   8.72   10.64
Sep   0.61   0.92   1.43   1.90   2.39   2.92   3.52   4.25   5.22   6.79   8.29
Oct   0.60   0.89   1.39   1.85   2.33   2.84   3.43   4.14   5.08   6.61   8.07
Nov   0.64   0.92   1.37   1.78   2.19   2.64   3.13   3.73   4.53   5.79   6.99
Dec   1.10   1.41   1.86   2.24   2.60   2.98   3.39   3.87   4.48   5.43   6.31