| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.54 | -0.03 |
| Feb | 3.07 | 2.97 | 0.10 |
| Mar | 3.76 | 3.77 | -0.01 |
| Apr | 3.93 | 3.86 | 0.07 |
| May | 4.40 | 4.52 | -0.12 |
| Jun | 4.72 | 4.87 | -0.15 |
| Jul | 4.51 | 4.81 | -0.30 |
| Aug | 4.19 | 4.26 | -0.07 |
| Sep | 3.89 | 3.91 | -0.02 |
| Oct | 3.41 | 3.42 | -0.01 |
| Nov | 3.51 | 3.45 | 0.06 |
| Dec | 3.68 | 3.53 | 0.15 |
46.58 | 46.91 | -0.33 |