| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.05 | 2.07 | -0.02 | 
| Feb | 1.71 | 1.82 | -0.11 | 
| Mar | 2.30 | 2.30 | 0.00 | 
| Apr | 3.67 | 3.67 | 0.00 | 
| May | 4.66 | 4.50 | 0.16 | 
| Jun | 4.37 | 4.52 | -0.15 | 
| Jul | 3.99 | 4.13 | -0.14 | 
| Aug | 3.87 | 3.72 | 0.15 | 
| Sep | 3.26 | 3.24 | 0.02 | 
| Oct | 3.12 | 3.09 | 0.03 | 
| Nov | 2.47 | 2.46 | 0.01 | 
| Dec | 2.01 | 2.06 | -0.05 | 
| 37.48 | 37.58 | -0.10 |