| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.35 | 2.31 | 0.04 | 
| Feb | 1.94 | 2.04 | -0.10 | 
| Mar | 2.85 | 2.83 | 0.02 | 
| Apr | 4.37 | 4.29 | 0.08 | 
| May | 4.76 | 4.71 | 0.05 | 
| Jun | 4.69 | 4.65 | 0.04 | 
| Jul | 3.63 | 3.60 | 0.03 | 
| Aug | 3.23 | 3.20 | 0.03 | 
| Sep | 3.11 | 3.25 | -0.14 | 
| Oct | 3.36 | 3.24 | 0.12 | 
| Nov | 3.23 | 3.26 | -0.03 | 
| Dec | 2.34 | 2.37 | -0.03 | 
| 39.86 | 39.75 | 0.11 |