| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.25 | 3.24 | 0.01 | 
| Feb | 3.09 | 3.10 | -0.01 | 
| Mar | 4.39 | 4.26 | 0.13 | 
| Apr | 5.41 | 5.28 | 0.13 | 
| May | 5.06 | 5.10 | -0.04 | 
| Jun | 4.38 | 4.45 | -0.07 | 
| Jul | 3.94 | 3.84 | 0.10 | 
| Aug | 3.19 | 3.07 | 0.12 | 
| Sep | 3.28 | 3.16 | 0.12 | 
| Oct | 3.59 | 3.55 | 0.04 | 
| Nov | 4.17 | 4.20 | -0.03 | 
| Dec | 3.51 | 3.60 | -0.09 | 
| 47.26 | 46.85 | 0.41 |