| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 8.54 | 9.54 | -1.00 | 
| Feb | 7.39 | 8.08 | -0.69 | 
| Mar | 6.98 | 6.88 | 0.10 | 
| Apr | 3.41 | 3.87 | -0.46 | 
| May | 1.42 | 1.94 | -0.52 | 
| Jun | 0.42 | 0.60 | -0.18 | 
| Jul | 0.05 | 0.07 | -0.02 | 
| Aug | 0.09 | 0.08 | 0.01 | 
| Sep | 0.32 | 0.33 | -0.01 | 
| Oct | 2.29 | 2.45 | -0.16 | 
| Nov | 5.15 | 5.41 | -0.26 | 
| Dec | 9.58 | 10.13 | -0.55 | 
| 45.64 | 49.38 | -3.74 |