| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.11 | 2.16 | -0.05 | 
| Feb | 1.87 | 1.96 | -0.09 | 
| Mar | 2.45 | 2.39 | 0.06 | 
| Apr | 3.87 | 3.86 | 0.01 | 
| May | 4.57 | 4.70 | -0.13 | 
| Jun | 4.48 | 4.42 | 0.06 | 
| Jul | 4.08 | 4.18 | -0.10 | 
| Aug | 4.07 | 4.03 | 0.04 | 
| Sep | 3.35 | 3.29 | 0.06 | 
| Oct | 3.47 | 3.47 | 0.00 | 
| Nov | 2.66 | 2.59 | 0.07 | 
| Dec | 2.20 | 2.19 | 0.01 | 
| 39.18 | 39.24 | -0.06 |