| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.42 | 3.58 | -0.16 | 
| Feb | 3.42 | 3.50 | -0.08 | 
| Mar | 4.53 | 4.46 | 0.07 | 
| Apr | 4.91 | 4.94 | -0.03 | 
| May | 5.25 | 5.15 | 0.10 | 
| Jun | 4.73 | 4.63 | 0.10 | 
| Jul | 4.41 | 4.28 | 0.13 | 
| Aug | 3.76 | 3.37 | 0.39 | 
| Sep | 3.61 | 3.72 | -0.11 | 
| Oct | 3.79 | 3.59 | 0.20 | 
| Nov | 3.59 | 3.68 | -0.09 | 
| Dec | 4.16 | 4.38 | -0.22 | 
| 49.58 | 49.28 | 0.30 |