| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.52 | 2.48 | 0.04 | 
| Feb | 2.06 | 2.14 | -0.08 | 
| Mar | 2.97 | 2.90 | 0.07 | 
| Apr | 4.17 | 4.18 | -0.01 | 
| May | 4.52 | 4.48 | 0.04 | 
| Jun | 4.81 | 4.82 | -0.01 | 
| Jul | 4.15 | 4.21 | -0.06 | 
| Aug | 3.33 | 3.24 | 0.09 | 
| Sep | 3.00 | 2.96 | 0.04 | 
| Oct | 3.37 | 3.37 | 0.00 | 
| Nov | 3.32 | 3.29 | 0.03 | 
| Dec | 2.51 | 2.55 | -0.04 | 
| 40.73 | 40.62 | 0.11 |