| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.65 | -0.12 |
| Feb | 3.42 | 3.60 | -0.18 |
| Mar | 3.63 | 3.71 | -0.08 |
| Apr | 3.21 | 3.23 | -0.02 |
| May | 3.55 | 3.70 | -0.15 |
| Jun | 5.18 | 5.27 | -0.09 |
| Jul | 5.36 | 5.54 | -0.18 |
| Aug | 5.25 | 5.45 | -0.20 |
| Sep | 4.61 | 4.69 | -0.08 |
| Oct | 3.72 | 3.68 | 0.04 |
| Nov | 2.81 | 2.82 | -0.01 |
| Dec | 3.64 | 3.64 | 0.00 |
47.91 | 48.98 | -1.07 |