| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.24 | 2.27 | -0.03 | 
| Feb | 1.99 | 2.04 | -0.05 | 
| Mar | 2.63 | 2.68 | -0.05 | 
| Apr | 4.05 | 3.99 | 0.06 | 
| May | 4.43 | 4.39 | 0.04 | 
| Jun | 4.62 | 4.60 | 0.02 | 
| Jul | 4.20 | 4.12 | 0.08 | 
| Aug | 3.25 | 3.12 | 0.13 | 
| Sep | 3.12 | 3.12 | 0.00 | 
| Oct | 3.27 | 3.24 | 0.03 | 
| Nov | 3.16 | 3.14 | 0.02 | 
| Dec | 2.30 | 2.39 | -0.09 | 
| 39.26 | 39.10 | 0.16 |