| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.91 | 3.95 | -0.04 |
| Feb | 3.85 | 4.09 | -0.24 |
| Mar | 4.10 | 4.16 | -0.06 |
| Apr | 3.19 | 3.24 | -0.05 |
| May | 3.25 | 3.14 | 0.11 |
| Jun | 4.75 | 4.86 | -0.11 |
| Jul | 5.01 | 4.78 | 0.23 |
| Aug | 4.77 | 5.10 | -0.33 |
| Sep | 3.55 | 3.62 | -0.07 |
| Oct | 2.85 | 2.85 | 0.00 |
| Nov | 2.77 | 2.71 | 0.06 |
| Dec | 3.90 | 3.97 | -0.07 |
45.90 | 46.47 | -0.57 |