| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.59 | -0.22 |
| Feb | 2.78 | 2.88 | -0.10 |
| Mar | 4.26 | 4.42 | -0.16 |
| Apr | 3.62 | 3.57 | 0.05 |
| May | 3.44 | 3.59 | -0.15 |
| Jun | 4.13 | 4.26 | -0.13 |
| Jul | 4.61 | 4.54 | 0.07 |
| Aug | 4.49 | 4.79 | -0.30 |
| Sep | 4.32 | 4.19 | 0.13 |
| Oct | 3.89 | 4.01 | -0.12 |
| Nov | 3.14 | 3.18 | -0.04 |
| Dec | 4.12 | 4.38 | -0.26 |
46.17 | 47.40 | -1.23 |