| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.51 | 0.04 |
| Feb | 2.83 | 2.79 | 0.04 |
| Mar | 4.03 | 3.97 | 0.06 |
| Apr | 3.57 | 3.60 | -0.03 |
| May | 3.94 | 4.00 | -0.06 |
| Jun | 4.55 | 4.44 | 0.11 |
| Jul | 5.28 | 5.10 | 0.18 |
| Aug | 4.99 | 5.12 | -0.13 |
| Sep | 5.15 | 5.06 | 0.09 |
| Oct | 3.78 | 3.99 | -0.21 |
| Nov | 3.12 | 3.14 | -0.02 |
| Dec | 3.60 | 3.63 | -0.03 |
48.39 | 48.35 | 0.04 |