| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.64 | 1.63 | 0.01 | 
| Feb | 1.60 | 1.58 | 0.02 | 
| Mar | 1.98 | 1.92 | 0.06 | 
| Apr | 3.65 | 3.66 | -0.01 | 
| May | 3.98 | 3.96 | 0.02 | 
| Jun | 4.65 | 4.72 | -0.07 | 
| Jul | 3.84 | 3.82 | 0.02 | 
| Aug | 3.80 | 3.91 | -0.11 | 
| Sep | 3.29 | 3.16 | 0.13 | 
| Oct | 2.86 | 2.77 | 0.09 | 
| Nov | 2.15 | 2.09 | 0.06 | 
| Dec | 1.84 | 1.89 | -0.05 | 
| 35.28 | 35.11 | 0.17 |