| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 4.23 | -0.27 |
| Feb | 3.53 | 3.69 | -0.16 |
| Mar | 4.91 | 5.05 | -0.14 |
| Apr | 4.24 | 4.38 | -0.14 |
| May | 3.44 | 3.51 | -0.07 |
| Jun | 3.47 | 3.60 | -0.13 |
| Jul | 2.79 | 2.88 | -0.09 |
| Aug | 3.54 | 3.72 | -0.18 |
| Sep | 4.08 | 4.12 | -0.04 |
| Oct | 4.83 | 4.70 | 0.13 |
| Nov | 4.28 | 4.20 | 0.08 |
| Dec | 4.79 | 5.13 | -0.34 |
47.86 | 49.21 | -1.35 |