| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.17 | 2.32 | -0.15 | 
| Feb | 1.93 | 2.01 | -0.08 | 
| Mar | 2.70 | 2.78 | -0.08 | 
| Apr | 3.83 | 3.93 | -0.10 | 
| May | 4.47 | 4.56 | -0.09 | 
| Jun | 4.29 | 4.37 | -0.08 | 
| Jul | 4.01 | 4.17 | -0.16 | 
| Aug | 3.41 | 3.29 | 0.12 | 
| Sep | 3.16 | 3.05 | 0.11 | 
| Oct | 3.30 | 3.42 | -0.12 | 
| Nov | 2.98 | 3.07 | -0.09 | 
| Dec | 2.28 | 2.42 | -0.14 | 
| 38.53 | 39.39 | -0.86 |