| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.98 | 2.16 | -0.18 | 
| Feb | 1.84 | 2.03 | -0.19 | 
| Mar | 2.24 | 2.28 | -0.04 | 
| Apr | 3.74 | 3.84 | -0.10 | 
| May | 4.44 | 4.57 | -0.13 | 
| Jun | 4.35 | 4.37 | -0.02 | 
| Jul | 3.74 | 3.73 | 0.01 | 
| Aug | 3.86 | 3.92 | -0.06 | 
| Sep | 3.28 | 3.26 | 0.02 | 
| Oct | 3.39 | 3.61 | -0.22 | 
| Nov | 2.50 | 2.66 | -0.16 | 
| Dec | 2.11 | 2.27 | -0.16 | 
| 37.47 | 38.70 | -1.23 |