| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.13 | 2.19 | -0.06 | 
| Feb | 1.89 | 1.91 | -0.02 | 
| Mar | 2.55 | 2.60 | -0.05 | 
| Apr | 3.77 | 3.75 | 0.02 | 
| May | 4.38 | 4.44 | -0.06 | 
| Jun | 4.60 | 4.65 | -0.05 | 
| Jul | 4.22 | 4.38 | -0.16 | 
| Aug | 3.61 | 3.49 | 0.12 | 
| Sep | 3.08 | 3.11 | -0.03 | 
| Oct | 3.11 | 3.23 | -0.12 | 
| Nov | 2.82 | 2.78 | 0.04 | 
| Dec | 2.18 | 2.21 | -0.03 | 
| 38.34 | 38.74 | -0.40 |