| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.89 | 4.08 | -0.19 | 
| Feb | 4.50 | 4.45 | 0.05 | 
| Mar | 4.68 | 4.67 | 0.01 | 
| Apr | 4.59 | 4.70 | -0.11 | 
| May | 5.07 | 5.09 | -0.02 | 
| Jun | 4.13 | 4.09 | 0.04 | 
| Jul | 3.43 | 3.35 | 0.08 | 
| Aug | 3.08 | 2.88 | 0.20 | 
| Sep | 3.86 | 3.83 | 0.03 | 
| Oct | 4.51 | 4.69 | -0.18 | 
| Nov | 4.16 | 4.18 | -0.02 | 
| Dec | 4.87 | 4.96 | -0.09 | 
| 50.77 | 50.97 | -0.20 |