| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.61 | 0.66 | -0.05 | 
| Feb | 0.67 | 0.71 | -0.04 | 
| Mar | 1.41 | 1.52 | -0.11 | 
| Apr | 2.17 | 2.32 | -0.15 | 
| May | 2.23 | 2.36 | -0.13 | 
| Jun | 1.89 | 2.32 | -0.43 | 
| Jul | 2.42 | 2.43 | -0.01 | 
| Aug | 2.16 | 2.34 | -0.18 | 
| Sep | 1.35 | 1.49 | -0.14 | 
| Oct | 1.04 | 1.16 | -0.12 | 
| Nov | 0.76 | 0.89 | -0.13 | 
| Dec | 0.63 | 0.70 | -0.07 | 
| 17.34 | 18.90 | -1.56 |