| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.61 | -0.23 |
| Feb | 3.20 | 3.28 | -0.08 |
| Mar | 4.13 | 4.33 | -0.20 |
| Apr | 4.04 | 4.20 | -0.16 |
| May | 3.70 | 3.55 | 0.15 |
| Jun | 4.07 | 4.15 | -0.08 |
| Jul | 3.62 | 3.75 | -0.13 |
| Aug | 3.76 | 3.89 | -0.13 |
| Sep | 3.84 | 3.83 | 0.01 |
| Oct | 4.66 | 4.77 | -0.11 |
| Nov | 3.83 | 3.77 | 0.06 |
| Dec | 4.42 | 4.63 | -0.21 |
46.65 | 47.76 | -1.11 |