| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.29 | 3.45 | -0.16 | 
| Feb | 3.36 | 3.42 | -0.06 | 
| Mar | 4.48 | 4.56 | -0.08 | 
| Apr | 4.43 | 4.54 | -0.11 | 
| May | 5.09 | 5.18 | -0.09 | 
| Jun | 4.84 | 4.85 | -0.01 | 
| Jul | 4.96 | 4.87 | 0.09 | 
| Aug | 3.43 | 3.32 | 0.11 | 
| Sep | 3.52 | 3.51 | 0.01 | 
| Oct | 3.44 | 3.44 | 0.00 | 
| Nov | 3.14 | 3.21 | -0.07 | 
| Dec | 3.82 | 4.00 | -0.18 | 
| 47.80 | 48.35 | -0.55 |