| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.23 | 2.27 | -0.04 | 
| Feb | 1.97 | 2.08 | -0.11 | 
| Mar | 2.61 | 2.70 | -0.09 | 
| Apr | 3.97 | 3.95 | 0.02 | 
| May | 4.31 | 4.40 | -0.09 | 
| Jun | 4.59 | 4.61 | -0.02 | 
| Jul | 4.26 | 4.16 | 0.10 | 
| Aug | 3.31 | 3.24 | 0.07 | 
| Sep | 3.06 | 3.15 | -0.09 | 
| Oct | 3.24 | 3.26 | -0.02 | 
| Nov | 3.10 | 3.11 | -0.01 | 
| Dec | 2.24 | 2.36 | -0.12 | 
| 38.89 | 39.29 | -0.40 |