| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.07 | 4.09 | -0.02 |
| Feb | 3.62 | 3.74 | -0.12 |
| Mar | 4.27 | 4.33 | -0.06 |
| Apr | 3.18 | 3.20 | -0.02 |
| May | 3.24 | 3.23 | 0.01 |
| Jun | 4.82 | 4.89 | -0.07 |
| Jul | 4.65 | 4.51 | 0.14 |
| Aug | 4.65 | 4.84 | -0.19 |
| Sep | 3.91 | 3.99 | -0.08 |
| Oct | 3.07 | 2.95 | 0.12 |
| Nov | 3.15 | 3.20 | -0.05 |
| Dec | 4.26 | 4.13 | 0.13 |
46.89 | 47.10 | -0.21 |