| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.38 | 0.47 | -0.09 | 
| Feb | 0.44 | 0.62 | -0.18 | 
| Mar | 0.74 | 0.81 | -0.07 | 
| Apr | 1.11 | 0.98 | 0.13 | 
| May | 1.17 | 1.21 | -0.04 | 
| Jun | 0.74 | 0.68 | 0.06 | 
| Jul | 1.66 | 1.86 | -0.20 | 
| Aug | 1.73 | 1.87 | -0.14 | 
| Sep | 1.04 | 0.95 | 0.09 | 
| Oct | 0.88 | 0.90 | -0.02 | 
| Nov | 0.47 | 0.52 | -0.05 | 
| Dec | 0.48 | 0.61 | -0.13 | 
| 10.84 | 11.48 | -0.64 |