| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.85 | 2.80 | 0.05 |
| Feb | 2.26 | 2.38 | -0.12 |
| Mar | 3.20 | 3.17 | 0.03 |
| Apr | 4.77 | 4.81 | -0.04 |
| May | 4.81 | 4.89 | -0.08 |
| Jun | 4.41 | 4.40 | 0.01 |
| Jul | 4.02 | 4.01 | 0.01 |
| Aug | 3.62 | 3.36 | 0.26 |
| Sep | 3.19 | 3.15 | 0.04 |
| Oct | 3.22 | 3.15 | 0.07 |
| Nov | 3.43 | 3.50 | -0.07 |
| Dec | 2.57 | 2.65 | -0.08 |
42.35 | 42.27 | 0.08 |