| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.28 | 3.25 | 0.03 |
| Feb | 2.77 | 2.80 | -0.03 |
| Mar | 3.89 | 3.88 | 0.01 |
| Apr | 4.47 | 4.49 | -0.02 |
| May | 4.66 | 4.79 | -0.13 |
| Jun | 4.77 | 4.55 | 0.22 |
| Jul | 4.10 | 4.19 | -0.09 |
| Aug | 3.35 | 3.29 | 0.06 |
| Sep | 3.10 | 3.08 | 0.02 |
| Oct | 3.11 | 3.09 | 0.02 |
| Nov | 3.04 | 3.09 | -0.05 |
| Dec | 3.50 | 3.42 | 0.08 |
44.04 | 43.92 | 0.12 |