| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.35 | 2.39 | -0.04 | 
| Feb | 1.95 | 2.01 | -0.06 | 
| Mar | 2.66 | 2.77 | -0.11 | 
| Apr | 4.14 | 4.31 | -0.17 | 
| May | 4.40 | 4.31 | 0.09 | 
| Jun | 4.59 | 4.56 | 0.03 | 
| Jul | 4.03 | 4.10 | -0.07 | 
| Aug | 3.05 | 2.92 | 0.13 | 
| Sep | 3.09 | 3.06 | 0.03 | 
| Oct | 3.26 | 3.19 | 0.07 | 
| Nov | 3.22 | 3.34 | -0.12 | 
| Dec | 2.30 | 2.43 | -0.13 | 
| 39.04 | 39.39 | -0.35 |