| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.15 | 1.92 | 0.23 | 
| Feb | 1.83 | 1.69 | 0.14 | 
| Mar | 2.31 | 2.42 | -0.11 | 
| Apr | 3.48 | 3.53 | -0.05 | 
| May | 4.51 | 4.59 | -0.08 | 
| Jun | 4.56 | 4.50 | 0.06 | 
| Jul | 4.06 | 4.12 | -0.06 | 
| Aug | 3.75 | 3.52 | 0.23 | 
| Sep | 3.26 | 3.27 | -0.01 | 
| Oct | 3.14 | 3.01 | 0.13 | 
| Nov | 2.50 | 2.51 | -0.01 | 
| Dec | 1.95 | 1.97 | -0.02 | 
| 37.50 | 37.05 | 0.45 |