| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.80 | 0.95 | -0.15 | 
| Feb | 0.81 | 0.92 | -0.11 | 
| Mar | 1.63 | 1.69 | -0.06 | 
| Apr | 2.90 | 3.14 | -0.24 | 
| May | 4.16 | 4.29 | -0.13 | 
| Jun | 4.74 | 4.99 | -0.25 | 
| Jul | 4.17 | 4.25 | -0.08 | 
| Aug | 4.63 | 4.56 | 0.07 | 
| Sep | 3.36 | 3.38 | -0.02 | 
| Oct | 2.77 | 3.04 | -0.27 | 
| Nov | 1.63 | 1.74 | -0.11 | 
| Dec | 1.16 | 1.30 | -0.14 | 
| 32.76 | 34.25 | -1.49 |