| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.93 | 1.91 | 0.02 | 
| Feb | 1.71 | 1.80 | -0.09 | 
| Mar | 2.25 | 2.27 | -0.02 | 
| Apr | 3.78 | 3.78 | 0.00 | 
| May | 4.60 | 4.57 | 0.03 | 
| Jun | 4.42 | 4.33 | 0.09 | 
| Jul | 3.91 | 3.90 | 0.01 | 
| Aug | 4.02 | 3.76 | 0.26 | 
| Sep | 3.17 | 3.24 | -0.07 | 
| Oct | 3.32 | 3.32 | 0.00 | 
| Nov | 2.53 | 2.48 | 0.05 | 
| Dec | 2.07 | 2.06 | 0.01 | 
| 37.71 | 37.42 | 0.29 |