| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.08 | -0.02 |
| Feb | 2.64 | 2.59 | 0.05 |
| Mar | 3.90 | 3.81 | 0.09 |
| Apr | 3.63 | 3.58 | 0.05 |
| May | 4.24 | 4.15 | 0.09 |
| Jun | 4.27 | 4.15 | 0.12 |
| Jul | 4.40 | 4.18 | 0.22 |
| Aug | 3.52 | 3.44 | 0.08 |
| Sep | 4.49 | 4.63 | -0.14 |
| Oct | 3.74 | 3.89 | -0.15 |
| Nov | 3.20 | 3.21 | -0.01 |
| Dec | 3.62 | 3.69 | -0.07 |
44.71 | 44.40 | 0.31 |