| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.37 | 3.32 | 0.05 | 
| Feb | 3.14 | 3.20 | -0.06 | 
| Mar | 4.42 | 4.43 | -0.01 | 
| Apr | 5.40 | 5.32 | 0.08 | 
| May | 5.17 | 5.21 | -0.04 | 
| Jun | 4.49 | 4.56 | -0.07 | 
| Jul | 4.04 | 4.06 | -0.02 | 
| Aug | 3.21 | 3.21 | 0.00 | 
| Sep | 3.29 | 3.26 | 0.03 | 
| Oct | 3.68 | 3.63 | 0.05 | 
| Nov | 4.34 | 4.33 | 0.01 | 
| Dec | 3.61 | 3.76 | -0.15 | 
| 48.16 | 48.29 | -0.13 |