| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.44 | -0.01 |
| Feb | 2.73 | 2.82 | -0.09 |
| Mar | 4.13 | 4.11 | 0.02 |
| Apr | 3.82 | 3.72 | 0.10 |
| May | 4.04 | 3.94 | 0.10 |
| Jun | 4.29 | 4.20 | 0.09 |
| Jul | 4.75 | 4.73 | 0.02 |
| Aug | 4.72 | 4.70 | 0.02 |
| Sep | 4.50 | 4.53 | -0.03 |
| Oct | 4.15 | 4.22 | -0.07 |
| Nov | 3.31 | 3.28 | 0.03 |
| Dec | 4.33 | 4.35 | -0.02 |
48.20 | 48.04 | 0.16 |