| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.87 | 2.92 | -0.05 | 
| Feb | 3.00 | 3.09 | -0.09 | 
| Mar | 3.70 | 3.78 | -0.08 | 
| Apr | 3.52 | 3.43 | 0.09 | 
| May | 4.78 | 4.56 | 0.22 | 
| Jun | 3.96 | 3.85 | 0.11 | 
| Jul | 2.06 | 1.99 | 0.07 | 
| Aug | 2.48 | 2.59 | -0.11 | 
| Sep | 2.82 | 2.95 | -0.13 | 
| Oct | 4.72 | 4.81 | -0.09 | 
| Nov | 3.16 | 3.11 | 0.05 | 
| Dec | 3.50 | 3.54 | -0.04 | 
| 40.57 | 40.62 | -0.05 |