| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.50 | 0.49 | 0.01 |
| Feb | 0.74 | 0.70 | 0.04 |
| Mar | 1.33 | 1.31 | 0.02 |
| Apr | 2.81 | 2.79 | 0.02 |
| May | 3.68 | 3.62 | 0.06 |
| Jun | 4.19 | 4.20 | -0.01 |
| Jul | 3.17 | 3.34 | -0.17 |
| Aug | 3.38 | 3.32 | 0.06 |
| Sep | 2.94 | 2.96 | -0.02 |
| Oct | 2.17 | 2.14 | 0.03 |
| Nov | 1.07 | 1.00 | 0.07 |
| Dec | 0.72 | 0.74 | -0.02 |
26.70 | 26.61 | 0.09 |