| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.95 | 4.91 | 0.04 |
| Feb | 4.47 | 4.72 | -0.25 |
| Mar | 4.74 | 4.80 | -0.06 |
| Apr | 4.63 | 4.69 | -0.06 |
| May | 4.16 | 4.40 | -0.24 |
| Jun | 4.68 | 4.82 | -0.14 |
| Jul | 4.92 | 4.85 | 0.07 |
| Aug | 4.23 | 4.29 | -0.06 |
| Sep | 3.91 | 4.30 | -0.39 |
| Oct | 3.32 | 3.27 | 0.05 |
| Nov | 4.02 | 4.06 | -0.04 |
| Dec | 5.07 | 5.20 | -0.13 |
53.10 | 54.31 | -1.21 |