| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.51 | 0.08 |
| Feb | 0.72 | 0.61 | 0.11 |
| Mar | 1.32 | 1.23 | 0.09 |
| Apr | 2.52 | 2.39 | 0.13 |
| May | 3.58 | 3.48 | 0.10 |
| Jun | 4.26 | 4.27 | -0.01 |
| Jul | 3.70 | 3.51 | 0.19 |
| Aug | 3.33 | 3.24 | 0.09 |
| Sep | 2.96 | 3.02 | -0.06 |
| Oct | 2.09 | 2.04 | 0.05 |
| Nov | 1.02 | 0.93 | 0.09 |
| Dec | 0.80 | 0.73 | 0.07 |
26.89 | 25.96 | 0.93 |