| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.07 | 2.08 | -0.01 | 
| Feb | 1.89 | 1.95 | -0.06 | 
| Mar | 2.48 | 2.58 | -0.10 | 
| Apr | 3.81 | 3.80 | 0.01 | 
| May | 4.61 | 4.73 | -0.12 | 
| Jun | 4.16 | 4.13 | 0.03 | 
| Jul | 3.94 | 3.77 | 0.17 | 
| Aug | 3.60 | 3.38 | 0.22 | 
| Sep | 3.41 | 3.43 | -0.02 | 
| Oct | 3.10 | 3.07 | 0.03 | 
| Nov | 2.70 | 2.68 | 0.02 | 
| Dec | 2.14 | 2.18 | -0.04 | 
| 37.91 | 37.78 | 0.13 |