| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.93 | 2.05 | -0.12 | 
| Feb | 1.83 | 1.92 | -0.09 | 
| Mar | 2.27 | 2.25 | 0.02 | 
| Apr | 3.74 | 3.77 | -0.03 | 
| May | 4.51 | 4.60 | -0.09 | 
| Jun | 4.51 | 4.32 | 0.19 | 
| Jul | 3.80 | 3.60 | 0.20 | 
| Aug | 3.74 | 4.00 | -0.26 | 
| Sep | 3.30 | 3.28 | 0.02 | 
| Oct | 3.27 | 3.35 | -0.08 | 
| Nov | 2.42 | 2.51 | -0.09 | 
| Dec | 2.10 | 2.17 | -0.07 | 
| 37.42 | 37.82 | -0.40 |