| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.34 | 2.39 | -0.05 | 
| Feb | 1.98 | 2.10 | -0.12 | 
| Mar | 2.89 | 2.86 | 0.03 | 
| Apr | 4.06 | 4.10 | -0.04 | 
| May | 4.42 | 4.51 | -0.09 | 
| Jun | 4.71 | 4.81 | -0.10 | 
| Jul | 4.19 | 4.29 | -0.10 | 
| Aug | 3.41 | 3.40 | 0.01 | 
| Sep | 3.07 | 3.12 | -0.05 | 
| Oct | 3.33 | 3.38 | -0.05 | 
| Nov | 3.24 | 3.25 | -0.01 | 
| Dec | 2.42 | 2.46 | -0.04 | 
| 40.06 | 40.67 | -0.61 |