| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.19 | 3.21 | -0.02 |
| Feb | 3.17 | 3.13 | 0.04 |
| Mar | 4.22 | 4.10 | 0.12 |
| Apr | 4.13 | 4.17 | -0.04 |
| May | 3.81 | 3.68 | 0.13 |
| Jun | 4.10 | 4.09 | 0.01 |
| Jul | 3.74 | 3.56 | 0.18 |
| Aug | 3.64 | 3.59 | 0.05 |
| Sep | 3.84 | 3.83 | 0.01 |
| Oct | 4.77 | 4.67 | 0.10 |
| Nov | 3.91 | 3.73 | 0.18 |
| Dec | 4.34 | 4.27 | 0.07 |
46.86 | 46.03 | 0.83 |