| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.21 | 2.26 | -0.05 | 
| Feb | 2.02 | 2.11 | -0.09 | 
| Mar | 2.50 | 2.69 | -0.19 | 
| Apr | 3.96 | 3.97 | -0.01 | 
| May | 4.49 | 4.43 | 0.06 | 
| Jun | 4.50 | 4.62 | -0.12 | 
| Jul | 4.27 | 4.22 | 0.05 | 
| Aug | 3.29 | 3.15 | 0.14 | 
| Sep | 3.22 | 3.19 | 0.03 | 
| Oct | 3.26 | 3.29 | -0.03 | 
| Nov | 3.11 | 3.14 | -0.03 | 
| Dec | 2.30 | 2.38 | -0.08 | 
| 39.13 | 39.45 | -0.32 |