| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.24 | 0.03 |
| Feb | 2.71 | 2.82 | -0.11 |
| Mar | 3.41 | 3.55 | -0.14 |
| Apr | 3.77 | 3.74 | 0.03 |
| May | 4.06 | 3.90 | 0.16 |
| Jun | 4.91 | 5.10 | -0.19 |
| Jul | 4.90 | 4.77 | 0.13 |
| Aug | 4.47 | 4.36 | 0.11 |
| Sep | 3.90 | 3.81 | 0.09 |
| Oct | 4.75 | 4.78 | -0.03 |
| Nov | 3.52 | 3.45 | 0.07 |
| Dec | 3.93 | 3.96 | -0.03 |
47.60 | 47.48 | 0.12 |