| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.40 | 1.38 | 0.02 | 
| Feb | 1.68 | 1.65 | 0.03 | 
| Mar | 2.41 | 2.37 | 0.04 | 
| Apr | 3.65 | 3.53 | 0.12 | 
| May | 4.86 | 4.84 | 0.02 | 
| Jun | 5.03 | 4.85 | 0.18 | 
| Jul | 4.07 | 3.81 | 0.26 | 
| Aug | 3.93 | 3.84 | 0.09 | 
| Sep | 3.55 | 3.44 | 0.11 | 
| Oct | 2.86 | 2.74 | 0.12 | 
| Nov | 2.25 | 2.19 | 0.06 | 
| Dec | 1.85 | 1.83 | 0.02 | 
| 37.54 | 36.47 | 1.07 |