| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.87 | 3.93 | -0.06 |
| Feb | 3.99 | 4.05 | -0.06 |
| Mar | 4.55 | 4.57 | -0.02 |
| Apr | 4.12 | 4.27 | -0.15 |
| May | 4.77 | 4.77 | 0.00 |
| Jun | 4.13 | 4.18 | -0.05 |
| Jul | 3.01 | 3.03 | -0.02 |
| Aug | 2.72 | 2.75 | -0.03 |
| Sep | 3.49 | 3.53 | -0.04 |
| Oct | 4.59 | 4.52 | 0.07 |
| Nov | 3.86 | 3.80 | 0.06 |
| Dec | 4.44 | 4.63 | -0.19 |
47.54 | 48.03 | -0.49 |