| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.77 | -0.24 |
| Feb | 2.93 | 3.03 | -0.10 |
| Mar | 4.23 | 4.26 | -0.03 |
| Apr | 3.75 | 3.82 | -0.07 |
| May | 3.70 | 3.94 | -0.24 |
| Jun | 4.44 | 4.36 | 0.08 |
| Jul | 4.50 | 4.47 | 0.03 |
| Aug | 4.33 | 4.30 | 0.03 |
| Sep | 4.76 | 5.03 | -0.27 |
| Oct | 3.51 | 3.43 | 0.08 |
| Nov | 3.33 | 3.37 | -0.04 |
| Dec | 3.59 | 3.61 | -0.02 |
46.60 | 47.39 | -0.79 |