| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.61 | -0.08 |
| Feb | 3.32 | 3.39 | -0.07 |
| Mar | 4.31 | 4.46 | -0.15 |
| Apr | 4.14 | 4.16 | -0.02 |
| May | 3.61 | 3.54 | 0.07 |
| Jun | 4.19 | 4.07 | 0.12 |
| Jul | 3.57 | 3.64 | -0.07 |
| Aug | 3.65 | 3.69 | -0.04 |
| Sep | 3.74 | 3.69 | 0.05 |
| Oct | 4.73 | 4.70 | 0.03 |
| Nov | 3.91 | 3.86 | 0.05 |
| Dec | 4.51 | 4.70 | -0.19 |
47.21 | 47.51 | -0.30 |