| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.60 | -0.09 |
| Feb | 3.78 | 3.73 | 0.05 |
| Mar | 4.66 | 4.63 | 0.03 |
| Apr | 4.73 | 4.83 | -0.10 |
| May | 4.88 | 4.97 | -0.09 |
| Jun | 4.39 | 4.29 | 0.10 |
| Jul | 4.51 | 4.30 | 0.21 |
| Aug | 3.00 | 2.81 | 0.19 |
| Sep | 3.33 | 3.22 | 0.11 |
| Oct | 3.62 | 3.70 | -0.08 |
| Nov | 3.82 | 3.74 | 0.08 |
| Dec | 4.35 | 4.21 | 0.14 |
48.58 | 48.03 | 0.55 |