| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.94 | 2.54 | 0.40 |
| Feb | 2.46 | 2.34 | 0.12 |
| Mar | 3.29 | 3.07 | 0.22 |
| Apr | 3.65 | 3.55 | 0.10 |
| May | 3.93 | 3.89 | 0.04 |
| Jun | 4.25 | 4.29 | -0.04 |
| Jul | 4.10 | 4.27 | -0.17 |
| Aug | 3.81 | 3.94 | -0.13 |
| Sep | 4.07 | 3.75 | 0.32 |
| Oct | 3.45 | 3.28 | 0.17 |
| Nov | 3.08 | 2.89 | 0.19 |
| Dec | 3.06 | 3.05 | 0.01 |
42.09 | 40.86 | 1.23 |