| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.75 | 1.75 | 0.00 | 
| Feb | 1.70 | 1.77 | -0.07 | 
| Mar | 2.20 | 2.25 | -0.05 | 
| Apr | 3.74 | 3.72 | 0.02 | 
| May | 4.42 | 4.60 | -0.18 | 
| Jun | 4.72 | 4.86 | -0.14 | 
| Jul | 3.93 | 3.90 | 0.03 | 
| Aug | 3.88 | 3.89 | -0.01 | 
| Sep | 3.46 | 3.56 | -0.10 | 
| Oct | 3.03 | 3.02 | 0.01 | 
| Nov | 2.40 | 2.39 | 0.01 | 
| Dec | 1.97 | 2.00 | -0.03 | 
| 37.20 | 37.71 | -0.51 |