| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.20 | 2.11 | 0.09 | 
| Feb | 1.79 | 1.92 | -0.13 | 
| Mar | 2.36 | 2.50 | -0.14 | 
| Apr | 3.56 | 3.66 | -0.10 | 
| May | 4.29 | 4.38 | -0.09 | 
| Jun | 4.79 | 4.88 | -0.09 | 
| Jul | 4.37 | 4.52 | -0.15 | 
| Aug | 3.46 | 3.52 | -0.06 | 
| Sep | 3.02 | 3.19 | -0.17 | 
| Oct | 3.12 | 3.24 | -0.12 | 
| Nov | 2.64 | 2.69 | -0.05 | 
| Dec | 2.14 | 2.16 | -0.02 | 
| 37.74 | 38.77 | -1.03 |