| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.14 | 2.25 | -0.11 | 
| Feb | 1.92 | 2.04 | -0.12 | 
| Mar | 2.59 | 2.70 | -0.11 | 
| Apr | 4.05 | 3.91 | 0.14 | 
| May | 4.54 | 4.48 | 0.06 | 
| Jun | 4.37 | 4.41 | -0.04 | 
| Jul | 3.92 | 3.97 | -0.05 | 
| Aug | 3.28 | 3.11 | 0.17 | 
| Sep | 3.07 | 3.07 | 0.00 | 
| Oct | 3.21 | 3.18 | 0.03 | 
| Nov | 3.08 | 2.96 | 0.12 | 
| Dec | 2.25 | 2.33 | -0.08 | 
| 38.42 | 38.41 | 0.01 |