| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.92 | 2.07 | -0.15 | 
| Feb | 1.85 | 1.96 | -0.11 | 
| Mar | 2.37 | 2.30 | 0.07 | 
| Apr | 3.83 | 3.84 | -0.01 | 
| May | 4.76 | 4.73 | 0.03 | 
| Jun | 4.49 | 4.41 | 0.08 | 
| Jul | 3.75 | 3.76 | -0.01 | 
| Aug | 3.91 | 4.04 | -0.13 | 
| Sep | 3.31 | 3.28 | 0.03 | 
| Oct | 3.47 | 3.48 | -0.01 | 
| Nov | 2.55 | 2.62 | -0.07 | 
| Dec | 2.12 | 2.19 | -0.07 | 
| 38.33 | 38.68 | -0.35 |