| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.09 | 1.15 | -0.06 | 
| Feb | 1.35 | 1.40 | -0.05 | 
| Mar | 2.13 | 2.18 | -0.05 | 
| Apr | 3.68 | 3.75 | -0.07 | 
| May | 4.57 | 4.61 | -0.04 | 
| Jun | 5.43 | 5.35 | 0.08 | 
| Jul | 4.28 | 4.32 | -0.04 | 
| Aug | 4.28 | 4.16 | 0.12 | 
| Sep | 3.60 | 3.51 | 0.09 | 
| Oct | 2.92 | 2.89 | 0.03 | 
| Nov | 2.15 | 2.14 | 0.01 | 
| Dec | 1.58 | 1.63 | -0.05 | 
| 37.06 | 37.09 | -0.03 |