| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.32 | 3.45 | -0.13 | 
| Feb | 3.14 | 3.41 | -0.27 | 
| Mar | 3.92 | 4.13 | -0.21 | 
| Apr | 4.18 | 4.35 | -0.17 | 
| May | 3.78 | 3.69 | 0.09 | 
| Jun | 4.35 | 4.49 | -0.14 | 
| Jul | 3.91 | 4.33 | -0.42 | 
| Aug | 3.87 | 3.91 | -0.04 | 
| Sep | 3.73 | 3.82 | -0.09 | 
| Oct | 5.26 | 5.44 | -0.18 | 
| Nov | 4.22 | 4.32 | -0.10 | 
| Dec | 4.25 | 4.51 | -0.26 | 
| 47.93 | 49.85 | -1.92 |