| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.92 | 2.01 | -0.09 | 
| Feb | 1.85 | 1.93 | -0.08 | 
| Mar | 2.46 | 2.51 | -0.05 | 
| Apr | 3.81 | 3.79 | 0.02 | 
| May | 4.68 | 4.78 | -0.10 | 
| Jun | 4.22 | 4.19 | 0.03 | 
| Jul | 3.92 | 3.73 | 0.19 | 
| Aug | 3.60 | 3.41 | 0.19 | 
| Sep | 3.44 | 3.58 | -0.14 | 
| Oct | 3.06 | 3.01 | 0.05 | 
| Nov | 2.53 | 2.66 | -0.13 | 
| Dec | 2.07 | 2.12 | -0.05 | 
| 37.56 | 37.72 | -0.16 |