| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.02 | 1.20 | -0.18 | 
| Feb | 0.99 | 1.26 | -0.27 | 
| Mar | 1.17 | 1.46 | -0.29 | 
| Apr | 1.28 | 1.58 | -0.30 | 
| May | 1.30 | 1.47 | -0.17 | 
| Jun | 0.70 | 0.79 | -0.09 | 
| Jul | 1.82 | 1.79 | 0.03 | 
| Aug | 1.92 | 2.10 | -0.18 | 
| Sep | 1.66 | 1.96 | -0.30 | 
| Oct | 1.29 | 1.56 | -0.27 | 
| Nov | 1.04 | 1.25 | -0.21 | 
| Dec | 1.13 | 1.19 | -0.06 | 
| 15.32 | 17.61 | -2.29 |