| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.91 | 4.85 | 0.06 |
| Feb | 4.85 | 4.75 | 0.10 |
| Mar | 5.08 | 4.91 | 0.17 |
| Apr | 4.06 | 4.16 | -0.10 |
| May | 4.07 | 4.05 | 0.02 |
| Jun | 4.74 | 4.77 | -0.03 |
| Jul | 4.51 | 4.52 | -0.01 |
| Aug | 4.69 | 4.66 | 0.03 |
| Sep | 4.00 | 4.15 | -0.15 |
| Oct | 3.81 | 3.70 | 0.11 |
| Nov | 4.24 | 4.13 | 0.11 |
| Dec | 4.73 | 4.79 | -0.06 |
53.69 | 53.44 | 0.25 |