| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.11 | 2.19 | -0.08 | 
| Feb | 1.85 | 1.99 | -0.14 | 
| Mar | 2.37 | 2.37 | 0.00 | 
| Apr | 3.82 | 3.84 | -0.02 | 
| May | 4.43 | 4.50 | -0.07 | 
| Jun | 4.33 | 4.27 | 0.06 | 
| Jul | 3.80 | 4.01 | -0.21 | 
| Aug | 4.02 | 4.04 | -0.02 | 
| Sep | 3.30 | 3.27 | 0.03 | 
| Oct | 3.47 | 3.46 | 0.01 | 
| Nov | 2.61 | 2.63 | -0.02 | 
| Dec | 2.13 | 2.27 | -0.14 | 
| 38.24 | 38.84 | -0.60 |