| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.75 | 4.65 | 0.10 |
| Feb | 4.75 | 4.74 | 0.01 |
| Mar | 4.85 | 4.81 | 0.04 |
| Apr | 3.95 | 4.01 | -0.06 |
| May | 3.79 | 3.87 | -0.08 |
| Jun | 4.38 | 4.37 | 0.01 |
| Jul | 4.90 | 4.99 | -0.09 |
| Aug | 4.21 | 4.35 | -0.14 |
| Sep | 3.94 | 4.02 | -0.08 |
| Oct | 3.48 | 3.48 | 0.00 |
| Nov | 4.02 | 4.17 | -0.15 |
| Dec | 4.62 | 4.66 | -0.04 |
51.64 | 52.12 | -0.48 |