| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.04 | 2.19 | -0.15 | 
| Feb | 1.81 | 1.99 | -0.18 | 
| Mar | 2.34 | 2.36 | -0.02 | 
| Apr | 3.80 | 3.85 | -0.05 | 
| May | 4.40 | 4.48 | -0.08 | 
| Jun | 4.27 | 4.30 | -0.03 | 
| Jul | 3.68 | 3.91 | -0.23 | 
| Aug | 4.07 | 4.02 | 0.05 | 
| Sep | 3.25 | 3.25 | 0.00 | 
| Oct | 3.49 | 3.44 | 0.05 | 
| Nov | 2.57 | 2.62 | -0.05 | 
| Dec | 2.09 | 2.28 | -0.19 | 
| 37.81 | 38.69 | -0.88 |