| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.61 | 2.58 | 0.03 |
| Feb | 2.17 | 2.21 | -0.04 |
| Mar | 2.49 | 2.46 | 0.03 |
| Apr | 3.72 | 3.66 | 0.06 |
| May | 4.37 | 4.25 | 0.12 |
| Jun | 4.41 | 4.32 | 0.09 |
| Jul | 4.15 | 4.23 | -0.08 |
| Aug | 4.03 | 3.99 | 0.04 |
| Sep | 3.23 | 3.16 | 0.07 |
| Oct | 3.24 | 3.20 | 0.04 |
| Nov | 2.93 | 2.93 | 0.00 |
| Dec | 2.42 | 2.41 | 0.01 |
39.77 | 39.40 | 0.37 |