| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.27 | 2.26 | 0.01 | 
| Feb | 1.93 | 1.95 | -0.02 | 
| Mar | 2.36 | 2.36 | 0.00 | 
| Apr | 3.68 | 3.68 | 0.00 | 
| May | 4.36 | 4.38 | -0.02 | 
| Jun | 4.66 | 4.70 | -0.04 | 
| Jul | 4.55 | 4.44 | 0.11 | 
| Aug | 4.00 | 4.15 | -0.15 | 
| Sep | 3.43 | 3.40 | 0.03 | 
| Oct | 3.41 | 3.45 | -0.04 | 
| Nov | 2.69 | 2.71 | -0.02 | 
| Dec | 2.16 | 2.18 | -0.02 | 
| 39.50 | 39.66 | -0.16 |