| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.55 | 3.72 | -0.17 | 
| Feb | 3.09 | 3.14 | -0.05 | 
| Mar | 3.78 | 4.04 | -0.26 | 
| Apr | 3.60 | 3.63 | -0.03 | 
| May | 3.54 | 3.39 | 0.15 | 
| Jun | 4.13 | 4.17 | -0.04 | 
| Jul | 3.81 | 3.98 | -0.17 | 
| Aug | 4.09 | 4.29 | -0.20 | 
| Sep | 3.75 | 3.98 | -0.23 | 
| Oct | 3.15 | 3.31 | -0.16 | 
| Nov | 3.19 | 3.29 | -0.10 | 
| Dec | 3.49 | 3.71 | -0.22 | 
| 43.17 | 44.65 | -1.48 |