| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.75 | -0.12 |
| Feb | 3.97 | 3.95 | 0.02 |
| Mar | 4.42 | 4.48 | -0.06 |
| Apr | 4.06 | 4.09 | -0.03 |
| May | 4.78 | 4.83 | -0.05 |
| Jun | 3.96 | 3.96 | 0.00 |
| Jul | 2.98 | 3.00 | -0.02 |
| Aug | 2.85 | 2.72 | 0.13 |
| Sep | 3.67 | 3.52 | 0.15 |
| Oct | 4.66 | 4.62 | 0.04 |
| Nov | 3.83 | 3.77 | 0.06 |
| Dec | 4.43 | 4.59 | -0.16 |
47.24 | 47.28 | -0.04 |