| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 0.83 | 0.80 | 0.03 | 
| Feb | 0.87 | 0.90 | -0.03 | 
| Mar | 1.46 | 1.48 | -0.02 | 
| Apr | 2.68 | 2.77 | -0.09 | 
| May | 3.64 | 3.78 | -0.14 | 
| Jun | 4.16 | 4.24 | -0.08 | 
| Jul | 4.17 | 4.23 | -0.06 | 
| Aug | 3.81 | 3.95 | -0.14 | 
| Sep | 3.55 | 3.53 | 0.02 | 
| Oct | 3.05 | 3.12 | -0.07 | 
| Nov | 1.66 | 1.64 | 0.02 | 
| Dec | 1.19 | 1.23 | -0.04 | 
| 31.07 | 31.67 | -0.60 |