| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.81 | -0.19 |
| Feb | 4.06 | 4.00 | 0.06 |
| Mar | 4.40 | 4.51 | -0.11 |
| Apr | 4.09 | 4.15 | -0.06 |
| May | 4.68 | 4.82 | -0.14 |
| Jun | 3.98 | 3.97 | 0.01 |
| Jul | 3.01 | 3.04 | -0.03 |
| Aug | 2.77 | 2.75 | 0.02 |
| Sep | 3.68 | 3.61 | 0.07 |
| Oct | 4.60 | 4.61 | -0.01 |
| Nov | 3.86 | 3.81 | 0.05 |
| Dec | 4.43 | 4.64 | -0.21 |
47.18 | 47.72 | -0.54 |