| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.40 | -0.06 |
| Feb | 3.22 | 3.25 | -0.03 |
| Mar | 4.07 | 4.15 | -0.08 |
| Apr | 4.16 | 3.94 | 0.22 |
| May | 3.64 | 3.46 | 0.18 |
| Jun | 4.15 | 4.04 | 0.11 |
| Jul | 3.57 | 3.63 | -0.06 |
| Aug | 3.61 | 3.64 | -0.03 |
| Sep | 3.94 | 3.76 | 0.18 |
| Oct | 4.64 | 4.71 | -0.07 |
| Nov | 3.76 | 3.63 | 0.13 |
| Dec | 4.36 | 4.45 | -0.09 |
46.46 | 46.06 | 0.40 |