| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.56 | 0.60 | -0.04 | 
| Feb | 0.76 | 0.78 | -0.02 | 
| Mar | 1.42 | 1.42 | 0.00 | 
| Apr | 2.78 | 2.90 | -0.12 | 
| May | 3.65 | 3.70 | -0.05 | 
| Jun | 4.48 | 4.43 | 0.05 | 
| Jul | 3.40 | 3.39 | 0.01 | 
| Aug | 3.38 | 3.40 | -0.02 | 
| Sep | 2.96 | 2.97 | -0.01 | 
| Oct | 2.20 | 2.20 | 0.00 | 
| Nov | 1.14 | 1.19 | -0.05 | 
| Dec | 0.81 | 0.87 | -0.06 | 
| 27.54 | 27.85 | -0.31 |