| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.41 | 1.40 | 0.01 | 
| Feb | 1.58 | 1.55 | 0.03 | 
| Mar | 2.21 | 2.09 | 0.12 | 
| Apr | 3.76 | 3.74 | 0.02 | 
| May | 4.18 | 4.21 | -0.03 | 
| Jun | 5.57 | 5.55 | 0.02 | 
| Jul | 4.45 | 4.22 | 0.23 | 
| Aug | 4.02 | 4.09 | -0.07 | 
| Sep | 3.85 | 3.83 | 0.02 | 
| Oct | 3.03 | 2.99 | 0.04 | 
| Nov | 2.38 | 2.30 | 0.08 | 
| Dec | 1.79 | 1.78 | 0.01 | 
| 38.23 | 37.75 | 0.48 |