| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.11 | 0.23 |
| Feb | 2.65 | 2.42 | 0.23 |
| Mar | 3.85 | 3.66 | 0.19 |
| Apr | 3.76 | 3.64 | 0.12 |
| May | 3.91 | 3.92 | -0.01 |
| Jun | 4.46 | 4.65 | -0.19 |
| Jul | 4.59 | 4.72 | -0.13 |
| Aug | 4.51 | 4.37 | 0.14 |
| Sep | 4.79 | 4.73 | 0.06 |
| Oct | 4.28 | 4.16 | 0.12 |
| Nov | 3.27 | 3.15 | 0.12 |
| Dec | 3.76 | 3.66 | 0.10 |
47.17 | 46.19 | 0.98 |