| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.89 | 2.04 | -0.15 | 
| Feb | 1.82 | 1.93 | -0.11 | 
| Mar | 2.35 | 2.30 | 0.05 | 
| Apr | 3.84 | 3.82 | 0.02 | 
| May | 4.70 | 4.73 | -0.03 | 
| Jun | 4.44 | 4.38 | 0.06 | 
| Jul | 3.74 | 3.76 | -0.02 | 
| Aug | 3.89 | 4.01 | -0.12 | 
| Sep | 3.29 | 3.28 | 0.01 | 
| Oct | 3.43 | 3.45 | -0.02 | 
| Nov | 2.54 | 2.60 | -0.06 | 
| Dec | 2.09 | 2.17 | -0.08 | 
| 38.02 | 38.47 | -0.45 |