| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.91 | 0.88 | 0.03 |
| Feb | 0.90 | 0.82 | 0.08 |
| Mar | 1.68 | 1.59 | 0.09 |
| Apr | 2.89 | 2.86 | 0.03 |
| May | 4.18 | 4.09 | 0.09 |
| Jun | 5.16 | 5.11 | 0.05 |
| Jul | 4.13 | 4.22 | -0.09 |
| Aug | 4.50 | 4.65 | -0.15 |
| Sep | 3.49 | 3.48 | 0.01 |
| Oct | 2.85 | 2.72 | 0.13 |
| Nov | 1.72 | 1.61 | 0.11 |
| Dec | 1.21 | 1.15 | 0.06 |
33.62 | 33.18 | 0.44 |