| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.37 | 3.42 | -0.05 | 
| Feb | 3.22 | 3.37 | -0.15 | 
| Mar | 4.51 | 4.52 | -0.01 | 
| Apr | 4.47 | 4.61 | -0.14 | 
| May | 4.98 | 5.11 | -0.13 | 
| Jun | 4.64 | 4.80 | -0.16 | 
| Jul | 4.99 | 5.28 | -0.29 | 
| Aug | 3.41 | 3.36 | 0.05 | 
| Sep | 3.34 | 3.42 | -0.08 | 
| Oct | 3.32 | 3.18 | 0.14 | 
| Nov | 3.12 | 3.24 | -0.12 | 
| Dec | 3.81 | 3.97 | -0.16 | 
| 47.18 | 48.28 | -1.10 |