| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.31 | 1.19 | 0.12 |
| Feb | 1.15 | 1.05 | 0.10 |
| Mar | 1.72 | 1.61 | 0.11 |
| Apr | 2.79 | 2.75 | 0.04 |
| May | 3.60 | 3.59 | 0.01 |
| Jun | 4.40 | 4.36 | 0.04 |
| Jul | 4.08 | 4.03 | 0.05 |
| Aug | 3.45 | 3.53 | -0.08 |
| Sep | 3.69 | 3.59 | 0.10 |
| Oct | 3.55 | 3.45 | 0.10 |
| Nov | 2.02 | 1.91 | 0.11 |
| Dec | 1.63 | 1.52 | 0.11 |
33.39 | 32.58 | 0.81 |