| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.05 | 2.07 | -0.02 | 
| Feb | 1.71 | 1.82 | -0.11 | 
| Mar | 2.30 | 2.31 | -0.01 | 
| Apr | 3.68 | 3.70 | -0.02 | 
| May | 4.69 | 4.50 | 0.19 | 
| Jun | 4.38 | 4.48 | -0.10 | 
| Jul | 4.04 | 4.12 | -0.08 | 
| Aug | 3.90 | 3.74 | 0.16 | 
| Sep | 3.29 | 3.24 | 0.05 | 
| Oct | 3.17 | 3.12 | 0.05 | 
| Nov | 2.49 | 2.47 | 0.02 | 
| Dec | 2.03 | 2.07 | -0.04 | 
| 37.73 | 37.64 | 0.09 |