| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.32 | 3.17 | 0.15 |
| Feb | 3.28 | 3.22 | 0.06 |
| Mar | 4.10 | 4.03 | 0.07 |
| Apr | 4.14 | 4.24 | -0.10 |
| May | 3.69 | 3.63 | 0.06 |
| Jun | 4.17 | 4.09 | 0.08 |
| Jul | 3.76 | 3.69 | 0.07 |
| Aug | 3.50 | 3.59 | -0.09 |
| Sep | 3.84 | 3.76 | 0.08 |
| Oct | 4.70 | 4.69 | 0.01 |
| Nov | 3.99 | 3.84 | 0.15 |
| Dec | 4.32 | 4.34 | -0.02 |
46.81 | 46.29 | 0.52 |