| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.51 | 3.70 | -0.19 | 
| Feb | 3.54 | 3.55 | -0.01 | 
| Mar | 4.60 | 4.66 | -0.06 | 
| Apr | 5.13 | 5.22 | -0.09 | 
| May | 5.15 | 5.25 | -0.10 | 
| Jun | 4.21 | 4.38 | -0.17 | 
| Jul | 4.06 | 3.97 | 0.09 | 
| Aug | 2.95 | 2.87 | 0.08 | 
| Sep | 3.21 | 3.32 | -0.11 | 
| Oct | 3.89 | 3.79 | 0.10 | 
| Nov | 4.46 | 4.27 | 0.19 | 
| Dec | 3.95 | 4.04 | -0.09 | 
| 48.66 | 49.02 | -0.36 |