| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.06 | 1.10 | -0.04 | 
| Feb | 1.13 | 1.15 | -0.02 | 
| Mar | 1.97 | 2.02 | -0.05 | 
| Apr | 3.80 | 3.95 | -0.15 | 
| May | 4.76 | 4.80 | -0.04 | 
| Jun | 5.98 | 5.99 | -0.01 | 
| Jul | 4.82 | 4.69 | 0.13 | 
| Aug | 4.17 | 4.19 | -0.02 | 
| Sep | 3.85 | 3.69 | 0.16 | 
| Oct | 2.69 | 2.74 | -0.05 | 
| Nov | 1.89 | 1.89 | 0.00 | 
| Dec | 1.43 | 1.53 | -0.10 | 
| 37.55 | 37.74 | -0.19 |