| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.46 | 2.57 | -0.11 | 
| Feb | 2.21 | 2.28 | -0.07 | 
| Mar | 3.27 | 3.33 | -0.06 | 
| Apr | 4.66 | 4.72 | -0.06 | 
| May | 4.97 | 5.07 | -0.10 | 
| Jun | 4.17 | 4.35 | -0.18 | 
| Jul | 4.14 | 4.08 | 0.06 | 
| Aug | 3.34 | 3.61 | -0.27 | 
| Sep | 3.23 | 3.18 | 0.05 | 
| Oct | 3.20 | 3.26 | -0.06 | 
| Nov | 3.40 | 3.45 | -0.05 | 
| Dec | 2.58 | 2.60 | -0.02 | 
| 41.63 | 42.50 | -0.87 |