| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.86 | 2.06 | -0.20 | 
| Feb | 1.82 | 1.96 | -0.14 | 
| Mar | 2.33 | 2.29 | 0.04 | 
| Apr | 3.83 | 3.82 | 0.01 | 
| May | 4.75 | 4.72 | 0.03 | 
| Jun | 4.45 | 4.40 | 0.05 | 
| Jul | 3.75 | 3.74 | 0.01 | 
| Aug | 3.89 | 4.04 | -0.15 | 
| Sep | 3.31 | 3.28 | 0.03 | 
| Oct | 3.38 | 3.45 | -0.07 | 
| Nov | 2.51 | 2.61 | -0.10 | 
| Dec | 2.08 | 2.18 | -0.10 | 
| 37.96 | 38.55 | -0.59 |