| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.06 | 2.22 | -0.16 | 
| Feb | 1.86 | 2.00 | -0.14 | 
| Mar | 2.42 | 2.37 | 0.05 | 
| Apr | 3.89 | 3.94 | -0.05 | 
| May | 4.59 | 4.72 | -0.13 | 
| Jun | 4.37 | 4.45 | -0.08 | 
| Jul | 3.79 | 3.96 | -0.17 | 
| Aug | 4.13 | 4.05 | 0.08 | 
| Sep | 3.32 | 3.25 | 0.07 | 
| Oct | 3.54 | 3.49 | 0.05 | 
| Nov | 2.60 | 2.61 | -0.01 | 
| Dec | 2.18 | 2.27 | -0.09 | 
| 38.75 | 39.33 | -0.58 |