| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.55 | 3.74 | -0.19 | 
| Feb | 3.47 | 3.60 | -0.13 | 
| Mar | 4.52 | 4.62 | -0.10 | 
| Apr | 4.91 | 5.02 | -0.11 | 
| May | 5.43 | 5.36 | 0.07 | 
| Jun | 5.01 | 4.95 | 0.06 | 
| Jul | 4.99 | 4.87 | 0.12 | 
| Aug | 3.53 | 3.36 | 0.17 | 
| Sep | 3.42 | 3.70 | -0.28 | 
| Oct | 3.72 | 3.60 | 0.12 | 
| Nov | 3.48 | 3.54 | -0.06 | 
| Dec | 4.22 | 4.27 | -0.05 | 
| 50.25 | 50.63 | -0.38 |