| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.91 | 2.11 | -0.20 | 
| Feb | 1.82 | 2.00 | -0.18 | 
| Mar | 2.33 | 2.29 | 0.04 | 
| Apr | 3.82 | 3.84 | -0.02 | 
| May | 4.65 | 4.67 | -0.02 | 
| Jun | 4.43 | 4.40 | 0.03 | 
| Jul | 3.71 | 3.72 | -0.01 | 
| Aug | 3.95 | 4.07 | -0.12 | 
| Sep | 3.28 | 3.26 | 0.02 | 
| Oct | 3.42 | 3.46 | -0.04 | 
| Nov | 2.48 | 2.64 | -0.16 | 
| Dec | 2.10 | 2.22 | -0.12 | 
| 37.90 | 38.68 | -0.78 |