| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.09 | 2.26 | -0.17 | 
| Feb | 1.82 | 1.94 | -0.12 | 
| Mar | 2.58 | 2.63 | -0.05 | 
| Apr | 3.78 | 3.73 | 0.05 | 
| May | 4.54 | 4.51 | 0.03 | 
| Jun | 4.02 | 3.99 | 0.03 | 
| Jul | 4.08 | 3.89 | 0.19 | 
| Aug | 3.60 | 3.61 | -0.01 | 
| Sep | 3.07 | 3.27 | -0.20 | 
| Oct | 3.26 | 3.27 | -0.01 | 
| Nov | 2.80 | 2.73 | 0.07 | 
| Dec | 2.17 | 2.28 | -0.11 | 
| 37.81 | 38.11 | -0.30 |