| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.90 | 1.91 | -0.01 | 
| Feb | 1.69 | 1.82 | -0.13 | 
| Mar | 2.23 | 2.29 | -0.06 | 
| Apr | 3.77 | 3.78 | -0.01 | 
| May | 4.62 | 4.56 | 0.06 | 
| Jun | 4.41 | 4.34 | 0.07 | 
| Jul | 3.96 | 3.88 | 0.08 | 
| Aug | 3.97 | 3.75 | 0.22 | 
| Sep | 3.19 | 3.26 | -0.07 | 
| Oct | 3.32 | 3.31 | 0.01 | 
| Nov | 2.51 | 2.49 | 0.02 | 
| Dec | 2.05 | 2.08 | -0.03 | 
| 37.62 | 37.47 | 0.15 |