| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.11 | 2.12 | -0.01 | 
| Feb | 1.85 | 1.93 | -0.08 | 
| Mar | 2.39 | 2.32 | 0.07 | 
| Apr | 3.80 | 3.77 | 0.03 | 
| May | 4.59 | 4.57 | 0.02 | 
| Jun | 4.50 | 4.44 | 0.06 | 
| Jul | 4.28 | 4.38 | -0.10 | 
| Aug | 4.03 | 3.94 | 0.09 | 
| Sep | 3.38 | 3.35 | 0.03 | 
| Oct | 3.35 | 3.32 | 0.03 | 
| Nov | 2.62 | 2.58 | 0.04 | 
| Dec | 2.15 | 2.14 | 0.01 | 
| 39.05 | 38.86 | 0.19 |