| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.65 | 3.78 | -0.13 | 
| Feb | 4.41 | 4.47 | -0.06 | 
| Mar | 4.83 | 4.68 | 0.15 | 
| Apr | 4.93 | 5.16 | -0.23 | 
| May | 5.09 | 5.41 | -0.32 | 
| Jun | 4.37 | 4.53 | -0.16 | 
| Jul | 4.40 | 4.62 | -0.22 | 
| Aug | 3.71 | 3.79 | -0.08 | 
| Sep | 3.95 | 3.98 | -0.03 | 
| Oct | 3.93 | 4.07 | -0.14 | 
| Nov | 3.86 | 3.85 | 0.01 | 
| Dec | 4.67 | 4.74 | -0.07 | 
| 51.80 | 53.08 | -1.28 |