| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 4.44 | 4.81 | -0.37 | 
| Feb | 4.60 | 4.96 | -0.36 | 
| Mar | 4.72 | 5.08 | -0.36 | 
| Apr | 3.83 | 3.92 | -0.09 | 
| May | 3.14 | 3.11 | 0.03 | 
| Jun | 5.55 | 5.34 | 0.21 | 
| Jul | 6.75 | 6.81 | -0.06 | 
| Aug | 7.38 | 7.79 | -0.41 | 
| Sep | 5.71 | 5.57 | 0.14 | 
| Oct | 3.31 | 3.47 | -0.16 | 
| Nov | 3.48 | 3.75 | -0.27 | 
| Dec | 4.37 | 4.35 | 0.02 | 
| 57.28 | 58.96 | -1.68 |