| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.61 | 0.58 | 0.03 |
| Feb | 0.61 | 0.55 | 0.06 |
| Mar | 1.18 | 1.12 | 0.06 |
| Apr | 2.21 | 2.20 | 0.01 |
| May | 3.10 | 3.09 | 0.01 |
| Jun | 4.35 | 4.25 | 0.10 |
| Jul | 4.12 | 4.10 | 0.02 |
| Aug | 3.59 | 3.66 | -0.07 |
| Sep | 2.78 | 2.81 | -0.03 |
| Oct | 2.42 | 2.46 | -0.04 |
| Nov | 1.06 | 1.06 | 0.00 |
| Dec | 0.71 | 0.66 | 0.05 |
26.74 | 26.54 | 0.20 |