| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.63 | 4.60 | 0.03 |
| Feb | 4.74 | 4.62 | 0.12 |
| Mar | 4.94 | 4.90 | 0.04 |
| Apr | 3.93 | 3.98 | -0.05 |
| May | 3.19 | 3.24 | -0.05 |
| Jun | 4.53 | 4.36 | 0.17 |
| Jul | 4.64 | 4.62 | 0.02 |
| Aug | 4.40 | 4.35 | 0.05 |
| Sep | 3.86 | 3.82 | 0.04 |
| Oct | 3.37 | 3.36 | 0.01 |
| Nov | 3.86 | 3.81 | 0.05 |
| Dec | 4.72 | 4.70 | 0.02 |
50.81 | 50.36 | 0.45 |