| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.03 | 2.09 | -0.06 | 
| Feb | 1.77 | 1.90 | -0.13 | 
| Mar | 2.32 | 2.44 | -0.12 | 
| Apr | 3.82 | 3.89 | -0.07 | 
| May | 4.43 | 4.66 | -0.23 | 
| Jun | 4.42 | 4.54 | -0.12 | 
| Jul | 4.06 | 4.17 | -0.11 | 
| Aug | 4.03 | 3.99 | 0.04 | 
| Sep | 3.25 | 3.28 | -0.03 | 
| Oct | 3.36 | 3.40 | -0.04 | 
| Nov | 2.59 | 2.50 | 0.09 | 
| Dec | 2.12 | 2.17 | -0.05 | 
| 38.20 | 39.03 | -0.83 |