| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.08 | 4.26 | -0.18 |
| Feb | 3.63 | 3.73 | -0.10 |
| Mar | 5.08 | 5.13 | -0.05 |
| Apr | 4.35 | 4.41 | -0.06 |
| May | 3.51 | 3.56 | -0.05 |
| Jun | 3.57 | 3.67 | -0.10 |
| Jul | 2.89 | 2.93 | -0.04 |
| Aug | 3.58 | 3.70 | -0.12 |
| Sep | 4.15 | 4.21 | -0.06 |
| Oct | 4.97 | 4.75 | 0.22 |
| Nov | 4.40 | 4.27 | 0.13 |
| Dec | 4.91 | 5.22 | -0.31 |
49.12 | 49.84 | -0.72 |