| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.75 | -0.18 |
| Feb | 2.99 | 3.11 | -0.12 |
| Mar | 4.32 | 4.25 | 0.07 |
| Apr | 3.76 | 3.83 | -0.07 |
| May | 3.91 | 3.75 | 0.16 |
| Jun | 4.08 | 4.09 | -0.01 |
| Jul | 4.22 | 4.15 | 0.07 |
| Aug | 4.61 | 4.79 | -0.18 |
| Sep | 3.90 | 3.84 | 0.06 |
| Oct | 4.05 | 4.20 | -0.15 |
| Nov | 3.33 | 3.40 | -0.07 |
| Dec | 4.30 | 4.58 | -0.28 |
47.04 | 47.74 | -0.70 |