| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.30 | 3.45 | -0.15 | 
| Feb | 2.71 | 2.68 | 0.03 | 
| Mar | 3.66 | 3.58 | 0.08 | 
| Apr | 3.75 | 3.97 | -0.22 | 
| May | 4.19 | 4.60 | -0.41 | 
| Jun | 4.50 | 4.82 | -0.32 | 
| Jul | 4.06 | 4.03 | 0.03 | 
| Aug | 3.42 | 3.50 | -0.08 | 
| Sep | 3.92 | 3.99 | -0.07 | 
| Oct | 3.08 | 3.17 | -0.09 | 
| Nov | 3.25 | 3.39 | -0.14 | 
| Dec | 3.45 | 3.48 | -0.03 | 
| 43.29 | 44.66 | -1.37 |