| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.07 | 1.16 | -0.09 | 
| Feb | 1.30 | 1.37 | -0.07 | 
| Mar | 2.05 | 2.08 | -0.03 | 
| Apr | 3.89 | 3.87 | 0.02 | 
| May | 4.45 | 4.69 | -0.24 | 
| Jun | 5.65 | 5.67 | -0.02 | 
| Jul | 4.34 | 4.47 | -0.13 | 
| Aug | 4.25 | 4.34 | -0.09 | 
| Sep | 3.68 | 3.89 | -0.21 | 
| Oct | 2.94 | 3.00 | -0.06 | 
| Nov | 2.15 | 2.18 | -0.03 | 
| Dec | 1.60 | 1.65 | -0.05 | 
| 37.37 | 38.37 | -1.00 |