| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.83 | 1.89 | -0.06 | 
| Feb | 1.77 | 1.88 | -0.11 | 
| Mar | 2.25 | 2.29 | -0.04 | 
| Apr | 3.84 | 3.72 | 0.12 | 
| May | 4.29 | 4.61 | -0.32 | 
| Jun | 4.55 | 4.44 | 0.11 | 
| Jul | 3.88 | 3.76 | 0.12 | 
| Aug | 3.86 | 3.85 | 0.01 | 
| Sep | 3.47 | 3.41 | 0.06 | 
| Oct | 3.19 | 3.21 | -0.02 | 
| Nov | 2.50 | 2.40 | 0.10 | 
| Dec | 2.07 | 2.07 | 0.00 | 
| 37.50 | 37.53 | -0.03 |