| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.53 | 0.04 |
| Feb | 3.05 | 3.04 | 0.01 |
| Mar | 3.90 | 4.08 | -0.18 |
| Apr | 3.63 | 3.81 | -0.18 |
| May | 3.67 | 3.72 | -0.05 |
| Jun | 4.27 | 4.39 | -0.12 |
| Jul | 4.23 | 4.13 | 0.10 |
| Aug | 4.03 | 4.16 | -0.13 |
| Sep | 3.93 | 4.13 | -0.20 |
| Oct | 3.18 | 3.27 | -0.09 |
| Nov | 3.28 | 3.31 | -0.03 |
| Dec | 3.57 | 3.65 | -0.08 |
44.31 | 45.22 | -0.91 |