| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.23 | 2.26 | -0.03 | 
| Feb | 1.98 | 2.11 | -0.13 | 
| Mar | 2.58 | 2.69 | -0.11 | 
| Apr | 3.98 | 3.96 | 0.02 | 
| May | 4.43 | 4.44 | -0.01 | 
| Jun | 4.48 | 4.62 | -0.14 | 
| Jul | 4.25 | 4.23 | 0.02 | 
| Aug | 3.35 | 3.16 | 0.19 | 
| Sep | 3.16 | 3.19 | -0.03 | 
| Oct | 3.26 | 3.29 | -0.03 | 
| Nov | 3.09 | 3.14 | -0.05 | 
| Dec | 2.28 | 2.37 | -0.09 | 
| 39.07 | 39.46 | -0.39 |