| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.51 | 0.00 |
| Feb | 0.74 | 0.76 | -0.02 |
| Mar | 1.38 | 1.38 | 0.00 |
| Apr | 2.79 | 2.96 | -0.17 |
| May | 3.63 | 3.56 | 0.07 |
| Jun | 4.28 | 4.11 | 0.17 |
| Jul | 3.24 | 3.32 | -0.08 |
| Aug | 3.35 | 3.45 | -0.10 |
| Sep | 2.91 | 2.86 | 0.05 |
| Oct | 2.14 | 2.02 | 0.12 |
| Nov | 1.08 | 1.05 | 0.03 |
| Dec | 0.76 | 0.84 | -0.08 |
26.81 | 26.82 | -0.01 |