| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.74 | 0.88 | -0.14 | 
| Feb | 0.78 | 0.86 | -0.08 | 
| Mar | 1.54 | 1.62 | -0.08 | 
| Apr | 2.86 | 3.04 | -0.18 | 
| May | 4.15 | 4.37 | -0.22 | 
| Jun | 4.45 | 4.54 | -0.09 | 
| Jul | 4.25 | 4.19 | 0.06 | 
| Aug | 4.22 | 4.19 | 0.03 | 
| Sep | 3.22 | 3.25 | -0.03 | 
| Oct | 2.84 | 2.73 | 0.11 | 
| Nov | 1.58 | 1.65 | -0.07 | 
| Dec | 1.05 | 1.26 | -0.21 | 
| 31.68 | 32.58 | -0.90 |