| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.85 | 1.89 | -0.04 | 
| Feb | 1.68 | 1.82 | -0.14 | 
| Mar | 2.22 | 2.30 | -0.08 | 
| Apr | 3.71 | 3.77 | -0.06 | 
| May | 4.64 | 4.53 | 0.11 | 
| Jun | 4.44 | 4.36 | 0.08 | 
| Jul | 3.92 | 3.88 | 0.04 | 
| Aug | 3.96 | 3.73 | 0.23 | 
| Sep | 3.22 | 3.29 | -0.07 | 
| Oct | 3.28 | 3.31 | -0.03 | 
| Nov | 2.48 | 2.48 | 0.00 | 
| Dec | 2.02 | 2.07 | -0.05 | 
| 37.42 | 37.43 | -0.01 |