| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.81 | 1.90 | -0.09 | 
| Feb | 1.68 | 1.82 | -0.14 | 
| Mar | 2.21 | 2.30 | -0.09 | 
| Apr | 3.68 | 3.77 | -0.09 | 
| May | 4.66 | 4.52 | 0.14 | 
| Jun | 4.45 | 4.38 | 0.07 | 
| Jul | 3.93 | 3.91 | 0.02 | 
| Aug | 3.93 | 3.72 | 0.21 | 
| Sep | 3.26 | 3.30 | -0.04 | 
| Oct | 3.24 | 3.31 | -0.07 | 
| Nov | 2.48 | 2.48 | 0.00 | 
| Dec | 2.02 | 2.07 | -0.05 | 
| 37.35 | 37.48 | -0.13 |