| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.59 | 2.78 | -0.19 |
| Feb | 2.10 | 2.11 | -0.01 |
| Mar | 2.90 | 2.94 | -0.04 |
| Apr | 3.57 | 3.64 | -0.07 |
| May | 3.93 | 4.04 | -0.11 |
| Jun | 4.34 | 4.26 | 0.08 |
| Jul | 3.89 | 3.89 | 0.00 |
| Aug | 3.55 | 3.57 | -0.02 |
| Sep | 3.51 | 3.50 | 0.01 |
| Oct | 3.21 | 3.17 | 0.04 |
| Nov | 2.83 | 2.82 | 0.01 |
| Dec | 2.68 | 2.81 | -0.13 |
39.10 | 39.53 | -0.43 |