| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 3.11 | -0.02 |
| Feb | 3.43 | 3.40 | 0.03 |
| Mar | 4.65 | 4.55 | 0.10 |
| Apr | 5.20 | 5.32 | -0.12 |
| May | 5.60 | 5.32 | 0.28 |
| Jun | 3.51 | 3.51 | 0.00 |
| Jul | 3.89 | 3.83 | 0.06 |
| Aug | 3.61 | 3.50 | 0.11 |
| Sep | 3.71 | 3.67 | 0.04 |
| Oct | 3.69 | 3.75 | -0.06 |
| Nov | 4.49 | 4.57 | -0.08 |
| Dec | 3.56 | 3.47 | 0.09 |
48.43 | 48.00 | 0.43 |