| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.72 | 0.78 | -0.06 | 
| Feb | 0.82 | 0.86 | -0.04 | 
| Mar | 1.50 | 1.53 | -0.03 | 
| Apr | 2.76 | 2.88 | -0.12 | 
| May | 4.19 | 4.27 | -0.08 | 
| Jun | 4.42 | 4.39 | 0.03 | 
| Jul | 4.41 | 4.42 | -0.01 | 
| Aug | 4.07 | 4.16 | -0.09 | 
| Sep | 3.33 | 3.35 | -0.02 | 
| Oct | 2.78 | 2.91 | -0.13 | 
| Nov | 1.54 | 1.64 | -0.10 | 
| Dec | 1.07 | 1.16 | -0.09 | 
| 31.61 | 32.35 | -0.74 |