| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.73 | 0.75 | -0.02 | 
| Feb | 0.75 | 0.74 | 0.01 | 
| Mar | 1.25 | 1.24 | 0.01 | 
| Apr | 2.20 | 2.20 | 0.00 | 
| May | 3.20 | 3.41 | -0.21 | 
| Jun | 4.45 | 4.56 | -0.11 | 
| Jul | 4.26 | 4.32 | -0.06 | 
| Aug | 3.60 | 3.55 | 0.05 | 
| Sep | 3.10 | 3.13 | -0.03 | 
| Oct | 2.82 | 2.91 | -0.09 | 
| Nov | 1.42 | 1.37 | 0.05 | 
| Dec | 1.06 | 1.11 | -0.05 | 
| 28.84 | 29.29 | -0.45 |