| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.39 | 3.53 | -0.14 | 
| Feb | 2.69 | 2.85 | -0.16 | 
| Mar | 3.69 | 3.78 | -0.09 | 
| Apr | 3.81 | 3.67 | 0.14 | 
| May | 3.83 | 3.76 | 0.07 | 
| Jun | 4.31 | 4.47 | -0.16 | 
| Jul | 4.87 | 5.11 | -0.24 | 
| Aug | 4.67 | 4.48 | 0.19 | 
| Sep | 4.68 | 4.67 | 0.01 | 
| Oct | 4.27 | 4.30 | -0.03 | 
| Nov | 3.24 | 3.29 | -0.05 | 
| Dec | 3.91 | 4.17 | -0.26 | 
| 47.36 | 48.08 | -0.72 |