| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.12 | 2.29 | -0.17 | 
| Feb | 1.93 | 2.02 | -0.09 | 
| Mar | 2.60 | 2.70 | -0.10 | 
| Apr | 4.01 | 4.04 | -0.03 | 
| May | 4.53 | 4.52 | 0.01 | 
| Jun | 4.34 | 4.45 | -0.11 | 
| Jul | 3.88 | 3.77 | 0.11 | 
| Aug | 3.27 | 3.15 | 0.12 | 
| Sep | 3.09 | 3.07 | 0.02 | 
| Oct | 3.22 | 3.25 | -0.03 | 
| Nov | 3.02 | 3.06 | -0.04 | 
| Dec | 2.24 | 2.36 | -0.12 | 
| 38.25 | 38.68 | -0.43 |