| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.33 | 2.75 | -0.42 | 
| Feb | 1.91 | 2.13 | -0.22 | 
| Mar | 2.20 | 2.33 | -0.13 | 
| Apr | 3.62 | 3.67 | -0.05 | 
| May | 3.70 | 3.97 | -0.27 | 
| Jun | 3.53 | 3.61 | -0.08 | 
| Jul | 3.09 | 3.09 | 0.00 | 
| Aug | 3.20 | 3.31 | -0.11 | 
| Sep | 3.07 | 3.15 | -0.08 | 
| Oct | 3.93 | 3.97 | -0.04 | 
| Nov | 2.99 | 3.18 | -0.19 | 
| Dec | 2.37 | 2.69 | -0.32 | 
| 35.94 | 37.85 | -1.91 |