| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.07 | 2.20 | -0.13 | 
| Feb | 1.86 | 2.00 | -0.14 | 
| Mar | 2.42 | 2.37 | 0.05 | 
| Apr | 3.90 | 3.94 | -0.04 | 
| May | 4.58 | 4.73 | -0.15 | 
| Jun | 4.39 | 4.47 | -0.08 | 
| Jul | 3.85 | 3.98 | -0.13 | 
| Aug | 4.14 | 4.05 | 0.09 | 
| Sep | 3.32 | 3.26 | 0.06 | 
| Oct | 3.55 | 3.51 | 0.04 | 
| Nov | 2.61 | 2.61 | 0.00 | 
| Dec | 2.18 | 2.25 | -0.07 | 
| 38.87 | 39.37 | -0.50 |