| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.50 | 3.50 | 0.00 | 
| Feb | 3.30 | 3.33 | -0.03 | 
| Mar | 4.61 | 4.50 | 0.11 | 
| Apr | 5.49 | 5.34 | 0.15 | 
| May | 5.03 | 5.12 | -0.09 | 
| Jun | 4.46 | 4.59 | -0.13 | 
| Jul | 4.28 | 4.06 | 0.22 | 
| Aug | 3.22 | 3.11 | 0.11 | 
| Sep | 3.42 | 3.23 | 0.19 | 
| Oct | 3.69 | 3.65 | 0.04 | 
| Nov | 4.24 | 4.26 | -0.02 | 
| Dec | 3.72 | 3.84 | -0.12 | 
| 48.96 | 48.53 | 0.43 |