| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.08 | 2.20 | -0.12 | 
| Feb | 1.86 | 2.00 | -0.14 | 
| Mar | 2.41 | 2.37 | 0.04 | 
| Apr | 3.84 | 3.88 | -0.04 | 
| May | 4.51 | 4.59 | -0.08 | 
| Jun | 4.36 | 4.31 | 0.05 | 
| Jul | 3.85 | 4.02 | -0.17 | 
| Aug | 4.06 | 4.06 | 0.00 | 
| Sep | 3.30 | 3.26 | 0.04 | 
| Oct | 3.51 | 3.45 | 0.06 | 
| Nov | 2.61 | 2.62 | -0.01 | 
| Dec | 2.14 | 2.29 | -0.15 | 
| 38.53 | 39.05 | -0.52 |