| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.80 | 0.90 | -0.10 | 
| Feb | 0.91 | 0.94 | -0.03 | 
| Mar | 1.62 | 1.77 | -0.15 | 
| Apr | 3.16 | 3.05 | 0.11 | 
| May | 4.22 | 4.15 | 0.07 | 
| Jun | 4.85 | 5.39 | -0.54 | 
| Jul | 4.15 | 4.38 | -0.23 | 
| Aug | 4.05 | 4.18 | -0.13 | 
| Sep | 3.16 | 3.44 | -0.28 | 
| Oct | 2.36 | 2.55 | -0.19 | 
| Nov | 1.50 | 1.54 | -0.04 | 
| Dec | 1.11 | 1.15 | -0.04 | 
| 31.89 | 33.44 | -1.55 |