| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.89 | 4.00 | -0.11 | 
| Feb | 3.75 | 3.79 | -0.04 | 
| Mar | 4.39 | 4.41 | -0.02 | 
| Apr | 3.03 | 3.18 | -0.15 | 
| May | 3.20 | 3.16 | 0.04 | 
| Jun | 4.42 | 4.55 | -0.13 | 
| Jul | 4.13 | 4.10 | 0.03 | 
| Aug | 4.21 | 4.47 | -0.26 | 
| Sep | 3.55 | 3.65 | -0.10 | 
| Oct | 2.83 | 2.90 | -0.07 | 
| Nov | 3.29 | 3.39 | -0.10 | 
| Dec | 4.18 | 4.21 | -0.03 | 
| 44.87 | 45.81 | -0.94 |