| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.02 | 2.04 | -0.02 | 
| Feb | 1.77 | 1.87 | -0.10 | 
| Mar | 2.36 | 2.36 | 0.00 | 
| Apr | 3.79 | 3.82 | -0.03 | 
| May | 4.58 | 4.61 | -0.03 | 
| Jun | 4.43 | 4.44 | -0.01 | 
| Jul | 4.16 | 4.21 | -0.05 | 
| Aug | 4.01 | 3.93 | 0.08 | 
| Sep | 3.29 | 3.28 | 0.01 | 
| Oct | 3.31 | 3.28 | 0.03 | 
| Nov | 2.57 | 2.47 | 0.10 | 
| Dec | 2.10 | 2.09 | 0.01 | 
| 38.39 | 38.40 | -0.01 |