| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.80 | 4.83 | -0.03 |
| Feb | 4.81 | 4.78 | 0.03 |
| Mar | 5.04 | 4.92 | 0.12 |
| Apr | 3.99 | 4.15 | -0.16 |
| May | 3.91 | 4.00 | -0.09 |
| Jun | 4.72 | 4.63 | 0.09 |
| Jul | 4.55 | 4.65 | -0.10 |
| Aug | 4.51 | 4.63 | -0.12 |
| Sep | 4.04 | 4.16 | -0.12 |
| Oct | 3.73 | 3.65 | 0.08 |
| Nov | 4.24 | 4.20 | 0.04 |
| Dec | 4.65 | 4.80 | -0.15 |
52.99 | 53.40 | -0.41 |