| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.61 | 1.59 | 0.02 | 
| Feb | 1.56 | 1.57 | -0.01 | 
| Mar | 2.03 | 2.02 | 0.01 | 
| Apr | 3.57 | 3.62 | -0.05 | 
| May | 4.20 | 4.09 | 0.11 | 
| Jun | 5.12 | 5.10 | 0.02 | 
| Jul | 3.83 | 3.77 | 0.06 | 
| Aug | 4.06 | 4.07 | -0.01 | 
| Sep | 3.60 | 3.50 | 0.10 | 
| Oct | 2.92 | 2.93 | -0.01 | 
| Nov | 2.24 | 2.27 | -0.03 | 
| Dec | 1.91 | 1.84 | 0.07 | 
| 36.65 | 36.37 | 0.28 |