| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.76 | 0.00 |
| Feb | 0.81 | 0.79 | 0.02 |
| Mar | 1.57 | 1.46 | 0.11 |
| Apr | 2.82 | 2.88 | -0.06 |
| May | 4.15 | 4.21 | -0.06 |
| Jun | 4.39 | 4.37 | 0.02 |
| Jul | 4.40 | 4.39 | 0.01 |
| Aug | 4.10 | 4.05 | 0.05 |
| Sep | 3.32 | 3.26 | 0.06 |
| Oct | 2.81 | 2.86 | -0.05 |
| Nov | 1.65 | 1.61 | 0.04 |
| Dec | 1.12 | 1.14 | -0.02 |
31.90 | 31.78 | 0.12 |