| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.72 | -0.08 |
| Feb | 3.49 | 3.51 | -0.02 |
| Mar | 4.56 | 4.69 | -0.13 |
| Apr | 4.17 | 4.16 | 0.01 |
| May | 3.57 | 3.42 | 0.15 |
| Jun | 4.07 | 3.91 | 0.16 |
| Jul | 3.48 | 3.44 | 0.04 |
| Aug | 3.46 | 3.39 | 0.07 |
| Sep | 3.70 | 3.53 | 0.17 |
| Oct | 4.65 | 4.78 | -0.13 |
| Nov | 3.97 | 4.00 | -0.03 |
| Dec | 4.67 | 4.70 | -0.03 |
47.43 | 47.25 | 0.18 |